1.1.4. Necessary conditions for developing ecotourism
To develop sustainable tourism, the following conditions are required:
* Existence of ecosystems with high biodiversity
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Identify Rating Levels and Rating Scales
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of the islanders. Therefore, this indicator will be divided into two sub-indicators:
a1. Natural tourism attractiveness a2. Cultural tourism attractiveness
b. Tourist capacity
The two island communes in Quan Lan have different capacities to receive tourists. Minh Chau Commune is home to many standard hotels and resorts, attracting high-income domestic and international tourists. Meanwhile, Quan Lan Commune has many motels mainly built and operated by local people, so the scale and quality are not high, and will be suitable for ordinary tourists such as students.
c. Time of exploitation of Quan Lan Island Commune:
Quan Lan tourism is seasonal due to weather and climate conditions and festivals only take place on certain days of the year, specifically in spring. In Quan Lan commune, the period from April to June and from September to November is considered the best time to visit Quan Lan because the cultural tourism activities are mainly associated with festivals taking place during this time.
Minh Chau island commune:
Tourism exploitation time is all year round, because this is a place with a number of tourist attractions with diverse ecosystems such as Bai Tu Long National Park Research Center, Tram forest, Turtle Laying Beach, so besides coming to the beach for tourism and vacation in the summer, Minh Chau will attract research groups to come for tourism combined with research at other times of the year.
d. Sustainability
The sustainability of ecotourism sites in Quan Lan and Minh Chau communes depends on the sensitivity of the ecosystems to climate changes.
landscape. In general, these tourist destinations have a fairly high level of sustainability, because they are natural ecosystems, planned and protected. However, if a large number of tourists gather at certain times, it can exceed the carrying capacity and affect the sustainability of the environment (polluted beaches, damaged trees, animals moving away from their habitats, etc.), then the sustainability of the above ecosystems (natural ecosystems, human ecosystems) will also be affected and become less sustainable.
e. Location and accessibility
Both island communes have ports to take tourists to visit from Van Don wharf:
- Quan Lan – Van Don traffic route:
Phuc Thinh – Viet Anh high-speed boat and Quang Minh high-speed boat, depart at 8am and 2pm from Van Don to Quan Lan, and at 7am and 1pm from Quan Lan to Van Don. There are also wooden boats departing at 7am and 1pm.
- Van Don - Minh Chau traffic route:
Chung Huong high-speed train, Minh Chau train, morning 7:30 and afternoon 13:30 from Van Don to Minh Chau, morning 6:30 and afternoon 13:00 from Minh Chau to Van Don.
f. Infrastructure
Despite receiving investment attention, the issue of infrastructure and technical facilities for tourism on Quan Lan Island is still an issue that needs to be resolved because it has a direct impact on the implementation of ecotourism activities. The minimum conditions for serving tourists such as accommodation, electricity, water, communication, especially medical services, and security work need to be given top priority. Ecotourism spots in Minh Chau commune are assessed to have better infrastructure and technical facilities for tourism because there are quite complete and synchronous conditions for serving tourists, meeting many needs of domestic and foreign tourists.
3.2.1.4. Determine assessment levels and assessment scales
Corresponding to the levels of each criterion, the index is the score of those levels in the order of 4, 3, 2, 1 decreasing according to the standard of each level: very attractive (4), attractive (3), average (2), less attractive (1).
3.2.1.5. Determining the coefficients of the criteria
For the assessment of DLST in the two communes of Quan Lan and Minh Chau islands, the students added evaluation coefficients to show the importance of the criteria and indicators as follows:
Coefficient 3 with criteria: Attractiveness, Exploitation time. These are the 2 most important criteria for attracting tourists to tourism in general and eco-tourism in particular, so they have the highest coefficient.
Coefficient 2 with criteria: Capacity, Infrastructure, Location and accessibility . Because the assessment area is an island commune of Van Don district, the above criteria are selected by the author with appropriate coefficients at the average level.
Coefficient 1 with criteria: Sustainability. Quan Lan has natural and human-made ecotourism sites, with high biodiversity and little impact from local human factors. Most of the ecotourism sites are still wild, so they are highly sustainable.
3.2.1.6. Results of DLST assessment on Quan Lan island
a. Assessment of the potential for natural tourism development
For Minh Chau commune:
+ Natural tourism attractiveness is determined to be very attractive (4 points) and the most important coefficient (coefficient 3), so the score of the Attractiveness criterion is 4 x 3 = 12.
+ Capacity is determined as average (2 points) and the coefficient is quite important (coefficient 2), then the score of Capacity criterion is 2 x 2 = 4.
+ Exploitation time is long (4 points), the most important coefficient (coefficient 3) so the score of the Exploitation time criterion is 4 x 3 = 12.
+ Sustainability is determined as sustainable (4 points), the important coefficient is the average coefficient (coefficient 1), so the score of the Sustainability criterion is 4 x 1 = 4 points
+ Location and accessibility are determined to be quite favorable (2 points), the coefficient is quite important (coefficient 2), the criterion score is 2 x 2 = 4 points.
+ Infrastructure is assessed as good (3 points), the coefficient is quite important (coefficient 2), then the score of the Infrastructure criterion is 3 x 2 = 6 points.
The total score for evaluating DLST in Minh Chau commune according to 6 evaluation criteria is determined as: 12 + 4 + 12 + 4 + 4 + 6 = 42 points
Similar assessment for Quan Lan commune, we have the following table:
Table 3.3: Assessment of the potential for natural ecotourism development in Quan Lan and Minh Chau communes
Attractiveness of self-tourismof course
Capacity
Mining time
Sustainability
Location and accessibility
Infrastructure
Result
Point
DarkMulti
Point
DarkMulti
Point
DarkMulti
Point
DarkMulti
Point
DarkMulti
Point
DarkMulti
CommuneMinh Chau
12
12
4
8
12
12
4
4
4
8
6
8
42/52
Quan CommuneLan
6
12
6
8
9
12
4
4
4
8
4
8
33/52
b. Assessment of the potential for humanistic tourism development
For Quan Lan commune:
+ The attractiveness of human tourism is determined to be very attractive (4 points) and the most important coefficient (coefficient 3), so the score of the Attractiveness criterion is 4 x 3 = 12.
+ Capacity is determined to be large (3 points) and the coefficient is quite important (coefficient 2), then the score of the Capacity criterion is 3 x 2 = 6.
+ Mining time is average (3 points), the most important coefficient (coefficient 3) so the score of the Mining time criterion is 3 x 3 = 9.
+ Sustainability is determined as sustainable (4 points), the important coefficient is the average coefficient (coefficient 1), so the score of the Sustainability criterion is 4 x 1 = 4 points.
+ Location and accessibility are determined to be quite favorable (2 points), the coefficient is quite important (coefficient 2), the criterion score is 2 x 2 = 4 points.
+ Infrastructure is rated as average (2 points), the coefficient is quite important (coefficient 2), then the score of the Infrastructure criterion is 2 x 2 = 4 points.
The total score for evaluating DLST in Quan Lan commune according to 6 evaluation criteria is determined as: 12 + 6 + 6 + 4 + 4 + 4 = 36 points.
Similar assessment with Minh Chau commune we have the following table:
Table 3.4: Assessment of the potential for developing humanistic eco-tourism in Quan Lan and Minh Chau communes
Attractiveness of human tourismliterature
Capacity
Mining time
Sustainability
Location and accessibility
Infrastructure
Result
Point
DarkMulti
Point
DarkMulti
Point
DarkMulti
Point
DarkMulti
Point
DarkMulti
Point
DarkMulti
Quan CommuneLan
12
12
6
8
9
12
4
4
4
8
4
8
39/52
Minh CommuneChau
6
12
4
8
12
12
4
4
4
8
6
8
36/52
Basically, both Minh Chau and Quan Lan localities have quite favorable conditions for developing ecotourism. However, Quan Lan commune has more advantages to develop ecotourism in a humanistic direction, because this is an area with many famous historical relics such as Quan Lan Communal House, Quan Lan Pagoda, Temple worshiping the hero Tran Khanh Du, ... along with local festivals held annually such as the wind praying ceremony (March 15), Quan Lan festival (June 10-19); due to its location near the port and long exploitation time, the beaches in Quan Lan commune (especially Quan Lan beach) are no longer hygienic and clean to ensure the needs of tourists coming to relax and swim; this is also an area with many beautiful landscapes such as Got Beo wind pass, Ong Phong head, Voi Voi cave, but the ability to access these places is still very limited (dirt hill road, lots of gravel and rocks), especially during rainy and windy times; In addition, other natural resources such as mangrove forests and sea worms have not been really exploited for tourism purposes and ecotourism development. On the contrary, Minh Chau commune has more advantages in developing ecotourism in the direction of natural tourism, this is an area with diverse ecosystems such as at Rua De Beach, Bai Tu Long National Park Conservation Center...; Minh Chau beach is highly appreciated for its natural beauty and cleanliness, ranked in the top ten most beautiful beaches in Vietnam; Minh Chau commune is also home to Tram forest with a large area and a purity of up to 90%, suitable for building bridges through the forest (a very effective type of natural ecotourism currently applied by many countries) for tourists to sightsee, as well as for the purpose of studying and researching.
Figure 3.1: Thenmala Forest Bridge (India) Source: https://www.thenmalaecotourism.com/(August 21, 2019)
3.2.2. Using SWOT matrix to evaluate Quan Lan island tourism
General assessment of current tourism activities of Quan Lan island is shown through the following SWOT matrix:
Table 3.5: SWOT matrix evaluating tourism activities on Quan Lan island
Internal agent
Strengths- There is a lot of potential for tourism development, especially natural ecotourism and humanistic ecotourism.- The unskilled labor force is relatively abundant.- resource environmentunpolluted, still
Weaknesses- Poorly developed infrastructure, especially traffic routes to tourist destinations on the island.- The team of professional staff is still weak.- Tourism products in general
quite wild, originalintact
general and DLST in particularalone is monotonous.
External agents
Opportunity- Tourism is a key industry in the socio-economic development strategy of the province and Van Don economic zone.- Quan Lan was selected as a pilot area for eco-tourism development within the framework of the green growth project between Quang Ninh province and the Japanese organization JICA.- The flow of tourists and especially ecotourism in the world tends toincreasing
Challenge- Weather and climate change abnormally.- Competition in tourism products is increasingly fierce, especially with other localities in the province such as Ha Long, Mong Cai...- Awareness of tourists, especially domestic tourists, about ecotourism and nature conservation is not high.
Through summary analysis using SWOT matrix we see that:
To exploit strengths and take advantage of opportunities, it is necessary to:
- Diversify products and service types (build more tourism routes aimed at specific needs of tourists: experiential tourism immersed in nature, spiritual cultural tourism...)
- Effective exploitation of resources and differentiated products (natural resources and human resources)
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Solutions for tourism development in Tien Lang - 10
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- District People's Committees and authorities of communes with tourist attractions should support, promote, and provide necessary information to people, helping them improve their knowledge about tourism. Raise tourism awareness for local people.
*
* *
Due to limited knowledge and research time, the thesis inevitably has shortcomings. Therefore, I look forward to receiving guidance from teachers, experts as well as your comments to make the thesis more complete.
Chapter III Conclusion
Through the issues presented in Chapter II, we can come to some conclusions:
Based on the strengths of available tourism resources, the types of tourism in Tien Lang that need to be promoted in the coming time are sightseeing and resort tourism, discovery tourism, weekend tourism. To improve the quality and diversify tourism products, Tien Lang district needs to combine with local cultural tourism resources, at the same time combine with surrounding areas, build rich tourism products. The strengths of Tien Lang tourism are eco-tourism and cultural tourism, so developing Tien Lang tourism must always go hand in hand with restoring and preserving types of cultural tourism resources. Some necessary measures to support and improve the efficiency of exploiting tourism resources in Tien Lang are: strengthening the construction of technical facilities and labor force serving tourism, actively promoting and advertising tourism, and expanding forms of capital mobilization for tourism development.
CONCLUDE
I Conclusion
1. Based on the results achieved within the framework of the thesis's needs, some basic conclusions can be drawn as follows:
Tien Lang is a locality with great potential for tourism development. The relatively abundant cultural tourism resources and ecological tourism resources have great appeal to tourists. Based on this potential, Tien Lang can build a unique tourism industry that is competitive enough with other localities within Hai Phong city and neighboring areas.
In recent years, the exploitation of the advantages of resources to develop tourism and build tourist routes in Tien Lang has not been commensurate with the available potential. In terms of quantity, many resource objects have not been brought into the purpose of tourism development. In terms of time, the regular service time has not been extended to attract more visitors. Infrastructure and technical facilities are still weak. The labor force is still thin and weak in terms of expertise. Tourism programs and routes have not been organized properly, the exploitation content is still monotonous, so it has not attracted many visitors. Although resources have not been mobilized much for tourism development, they are facing the risk of destruction and degradation.
2. Based on the results of investigation, analysis, synthesis, evaluation and selective absorption of research results of related topics, the thesis has proposed a number of necessary solutions to improve the efficiency of exploiting tourism resources in Tien Lang such as: promoting the restoration and conservation of tourism resources, focusing on investment and key exploitation of ecotourism resources, strengthening the construction of infrastructure and tourism workforce. Expanding forms of capital mobilization. In addition, the thesis has built a number of tourist routes of Hai Phong in which Tien Lang tourism resources play an important role.
Exploiting Tien Lang tourism resources for tourism development is currently facing many difficulties. The above measures, if applied synchronously, will likely bring new prospects for the local tourism industry, contributing to making Tien Lang tourism an important economic sector in the district's economic structure.
REFERENCES
1. Nhuan Ha, Trinh Minh Hien, Tran Phuong, Hai Phong - Historical and cultural relics, Hai Phong Publishing House, 1993
2. Hai Phong City History Council, Hai Phong Gazetteer, Hai Phong Publishing House, 1990.
3. Hai Phong City History Council, History of Tien Lang District Party Committee, Hai Phong Publishing House, 1990.
4. Hai Phong City History Council, University of Social Sciences and Humanities, VNU, Hai Phong Place Names Encyclopedia, Hai Phong Publishing House. 2001.
5. Law on Cultural Heritage and documents guiding its implementation, National Political Publishing House, Hanoi, 2003.
6. Tran Duc Thanh, Lecture on Tourism Geography, Faculty of Tourism, University of Social Sciences and Humanities, VNU, 2006
7. Hai Phong Center for Social Sciences and Humanities, Some typical cultural heritages of Hai Phong, Hai Phong Publishing House, 2001
8. Nguyen Ngoc Thao (editor-in-chief, Tourism Geography, Hai Phong Publishing House, two volumes (2001-2002)
9. Nguyen Minh Tue and group of authors, Hai Phong Tourism Geography, Ho Chi Minh City Publishing House, 1997.
10. Nguyen Thanh Son, Hai Phong Tourism Territory Organization, Associate Doctoral Thesis in Geological Geography, Hanoi, 1996.
11. Decision No. 2033/QD – UB on detailed planning of Tien Lang town, Hai Phong city until 2020.
12. Department of Culture, Information, Hai Phong Museum, Hai Phong relics
- National ranked scenic spot, Hai Phong Publishing House, 2005. 13. Tien Lang District People's Committee, Economic Development Planning -
Culture - Society of Tien Lang district to 2010.
14.Website www.HaiPhong.gov.vn
APPENDIX 1
List of national ranked monuments
STT
Name of the monument
Number, year of decisiondetermine
Location
1
Gam Temple
938 VH/QĐ04/08/1992
Cam Khe Village- Toan Thang commune
2
Doc Hau Temple
9381 VH/QĐ04/08/1992
Doc Hau Village –Toan Thang commune
3
Cuu Doi Communal House
3207 VH/QĐDecember 30, 1991
Zone II of townTien Lang
4
Ha Dai Temple
938 VH/QĐ04/08/1992
Ha Dai Village –Tien Thanh commune
APPENDIX II
STT
Name of the monument
Number, year of decision
Location
1
Phu Ke Pagoda Temple
178/QD-UBJanuary 28, 2005
Zone 1 - townTien Lang
2
Trung Lang Temple
178/QD-UBJanuary 28, 2005
Zone 4 – townTien Lang
3
Bao Khanh Pagoda
1900/QD-UBAugust 24, 2006
Nam Tu Village -Kien Thiet commune
4
Bach Da Pagoda
1792/QD-UB11/11/2002
Hung Thang Commune
5
Ngoc Dong Temple
177/QD-UBNovember 27, 2005
Tien Thanh Commune
6
Tomb of Minister TSNhu Van Lan
2848/QD-UBSeptember 19, 2003
Nam Tu Village -Kien Thiet commune
7
Canh Son Stone Temple
2160/QD-UBSeptember 19, 2003
Van Doi Commune –Doan Lap
8
Meiji Temple
2259/QD-UBSeptember 19, 2002
Toan Thang Commune
9
Tien Doi Noi Temple
477/QD-UBSeptember 19, 2005
Doan Lap Commune
10
Tu Doi Temple
177/QD-UBJanuary 28, 2005
Doan Lap Commune
11
Duyen Lao Temple
177/QD-UBJanuary 28, 2005
Tien Minh Commune
12
Dinh Xuan Uc Pagoda
177/QD-UBJanuary 28, 2005
Bac Hung Commune
13
Chu Khe Pagoda
177/QD-UBJanuary 28, 2005
Hung Thang Commune
14
Dong Dinh
2848/QD-UBNovember 21, 2002
Vinh Quang Commune
15
President's Memorial HouseTon Duc Thang
177/QD-UBJanuary 28, 2005
NT Quy Cao
Ha Dai Temple
Ben Vua Temple
Tien Lang hot spring
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Developing cultural tourism from the potential of ethnic minorities in Ninh Thuan province, the case of the Raglai ethnic group in Bac Ai district - 17 -
Conditions and Potential for Tourism Development in Sam Son Town Sam Son -
Conditions for Developing Traditional Craft Village Tourism
This is a decisive condition for the development of ecotourism, because ecotourism is a type of tourism based on nature, which can only exist and develop in places with typical ecosystems with high biodiversity. Biodiversity is the basis for creating attraction for tourists, thanks to which ecotourism can exist and develop. It can be said that without biodiversity, there can be no ecotourism.
* Management staff and tour guides must have professional qualifications and understanding of biodiversity.

To develop ecotourism, it is necessary to have a team of tour guides who not only grasp knowledge about tourism but also have a certain level of understanding about natural ecological characteristics and local culture. They have the ability to propagate and explain to tourists about culture, history and biodiversity, contributing to raising awareness of tourists about the environment and biodiversity conservation.
Ecotourism requires tourism managers and operators to grasp and respect the principles of ecotourism. On the one hand, ecotourism managers are concerned with the profits generated by tourism, but on the other hand, they must pay attention to biodiversity conservation through activities of establishing cooperative relationships with managers of nature reserves and local communities in order to contribute to the long-term protection of natural and cultural values, improve life and enhance common understanding between local people and tourists (Nguyen Duc Hau, 2007). This is the fundamental difference between ecotourism and other types of tourism.
* Minimize negative impacts of tourism on the environment
Ecotourism activities often have negative impacts on nature and the environment. If there are no measures to limit negative impacts, the basis for sustainable development of ecotourism will be lost. Tourists will not come to places where
They do not have the opportunity to satisfy themselves about the discovery of biodiversity as well as other natural, historical and cultural values.
To limit negative impacts on the environment, ecotourism needs to calculate the number of visitors reasonably, ensuring harmony between the number of visitors and the environment. Ecotourism needs to comply with the regulations of capacity, calculate the number of visitors to a location at the same time to suit the physical, biological, psychological, social and management level of tourism workers.
* Satisfy the need to improve tourists' understanding
Satisfying tourists’ desire to explore and understand the experiences and knowledge of the nature of indigenous cultures is often very difficult, but it is a necessary requirement for the long-term existence of the ecotourism industry. Therefore, services to satisfy tourists’ understanding are of importance, second only to conservation work. What they have seen and discovered has a profound impact on their awareness, concepts, thoughts and feelings about the environment, society and community (Khoang Xanh - Suoi Tien Tourism Company, 2015).
1.1.5. Ecotourism development
Sustainable tourism development is demonstrated by: Community participation, environmental impact assessment, strengthening infrastructure construction to serve tourism development and stability and safety.
Developing eco-tourism needs to ensure the following principles:
Exploiting and using resources reasonably: Tourism activities are always associated with the exploitation of natural resources and ecosystems. Therefore, it is necessary to pay attention to the reasonable use of resources for tourism purposes, not to use resources beyond the permitted limits.
Tourism development associated with biodiversity conservation: Sustainable tourism development is based on biodiversity. Therefore, tourism activities are always associated with biodiversity conservation.
Ensuring harmony of interests: Tourism brings great benefits, but sustainable tourism development must ensure harmony among stakeholders such as the interests of tourism businesses, the interests of communities, and the interests of the State.
Strengthening community participation: Sustainable ecotourism development requires community participation to create social consensus. The community needs to participate in decisions related to tourism development such as tourism planning, the implementation of tourism projects, monitoring tourism activities, and maintaining tourism infrastructure.
Enhancing the responsibility of stakeholders: Sustainable tourism activities are based on enhancing the responsibility of stakeholders and entities participating in tourism activities.
1.2. Ecotourism in the World
Yi-fong, Cheng (2012) in "Indigenous Ecotourism and Social Development in Taroka National Park and San-Chan Community, Taiwan" investigated the socio-cultural impacts of newly developed tourism on cultural, social and ecological conservation. The author concluded that different groups will benefit or be affected differently from ecotourism development. Tourism development in the national park may exacerbate inequalities and differences among groups within the community. Therefore, to develop a community-based ecotourism project, it is necessary to have a deep understanding of not only the relationship between local communities and the environment but also the political, economic and cultural issues that exist among communities, as well as between communities and the National Park Management Board.
Yacob et al. (2011) in their study on "Tourists' Perceptions and Concepts of Ecotourism Development in Redang Island Marine National Park, Malaysia" interviewed 29 subjects, analyzed basic information of tourists to the National Park, tourists' perceptions and concepts of tourism resource management, conservation of ecotourism resources and tourists' perceptions of increasing revenue for the National Park from tourism activities. The study concluded that tourists' views and perceptions of environmental issues can be addressed on the basis of planning and management, therefore the management approach is likely to be successful if there is an opportunity for dialogue and exchange between managers and stakeholders. However, effective ecotourism planning, development and management must be one that addresses nature-based activities, incorporates environmental education and maintains ecological sustainability, benefits to local communities and creates visitor satisfaction. The study provides valuable recommendations for ecotourism resource management in the National Park. Therefore, the study has the potential to support the management of the National Park to improve ecotourism resource management and develop ecotourism development plans.
Bhuiyan et al. (2011) in the study "The Role of Government in Ecotourism Development: A Case Study in Coastal Economic Zones" affirmed that Government intervention is essential for developing countries in planning and promoting ecotourism activities. Specifically, in Malaysia, the main Government intervention in the field of ecotourism development is developing ecotourism products, promoting tourism accessibility, training, tourism promotion, sustainable tourism development... The study also recommends that the Government should develop an ecotourism action plan, build institutional capacity, invest in ecotourism projects in special-use forests, develop human resources... In particular, the Government should ensure the economic, social, cultural and ecological benefits of local communities through participation in ecotourism development.
Hill (2011) in his study "Ecotourism in the Peruvian Amazon: Integrating tourism, conservation and community development" proposed a number of key principles for successful ecotourism development in tropical forests. Specifically, these principles are enhancing community capacity through facilitating their participation in ecotourism activities, exchanging awareness between communities and tour operators, co-managing forest resources, combining training and tourism, and minimizing the impact of tourism activities on the environment and ecosystems. This study emphasizes the relationship between different beneficiaries or beneficiaries of ecotourism development. Ecotourism development in national parks may exacerbate inequality and differences between groups in the community. Therefore, to build a community-based ecotourism project, it is necessary to have a deep understanding of not only the relationship between local communities and the environment but also the political, economic and cultural issues that exist between communities, as well as between communities and the National Park Management Board.
Apostu and Gheres (2009) in their study on "Some proposals for the organization and development of ecotourism for special-use forests in Romania" analyzed the current state of ecotourism activities in Romania and showed that the shortcomings can be divided into two groups: shortcomings within the tourism industry and shortcomings in the management of special-use forests. For the industry, the problem arises from the failure of the promotion program for the ecological environment at all management levels, especially the absence of a program to disseminate information to the community in areas with high potential for ecotourism.
In special-use forests, a series of problems arise, but they do not originate from the impossibility of implementing this form of tourism, but from the fact that there is a lack of a reasonable management mechanism for the natural environment that has unique and important values for maintaining ecological balance and protecting biodiversity. In the study "Ecotourism potential and ecotourism management in the lower Kavak River (Tay
Eastern Türkiye", Ozcan et al. (2009) found that a system of solutions is needed to maximize the potential of ecotourism. These solutions include building ecotourism infrastructure to meet the needs of tourists, implementing measures to prevent negative impacts of ecotourism activities on wild bird conservation, and placing billboards to promote information about the endemicity of bird species in conservation. In addition, although the ecotourism potential is very large, the study area is also affected by the activities of nearby people such as agricultural cultivation, livestock farming, and hunting. Therefore, agricultural activities that can have negative impacts on the development of ecotourism need to be eliminated.
Sambin et al. (2013) in the study "Sustainability of Ecotourism Resources in Taman Negara National Park: Contingent Valuation" assessed the economic value of ecotourism resources in Taman Negara National Park. The study also provided a framework of willingness to pay for ecotourism services in the park and concluded that visitors are willing to pay a higher entrance fee than the current fee.
Chase et al. (1998) also applied a similar method in the study "Demand for Ecotourism and the Principle of Price Discrimination in National Park Entrance Fees in Costa Rica". However, Costa Rica et al. not only proposed a framework of willingness to pay but also built a demand function for ecotourism for national parks and assessed the elasticity of demand according to income. On that basis, the study calculated the fee level to maximize revenue and analyzed the application of the principle of discrimination to ecotourism management in national parks. The author also concluded that the current entrance fee level does not accurately reflect the willingness to pay of visitors.
Thus, the research on ecotourism and ecotourism in national parks and natural resource conservation areas by foreign authors shows that the management and
Ecotourism exploitation requires unified management and ecotourism resources in national parks are very valuable resources and need to be effectively exploited for ecotourism, ecosystem conservation and local community development.
However, ecotourism activities also impact forest ecosystems and natural resources. Studies have also confirmed that ecotourism is a link in sustainable development, a resource for sustainable development, but it requires a comprehensive multi-disciplinary approach, good planning and strict implementation guidelines to ensure sustainable operation. The development of ecotourism but lack of funding and human resources has left resources unprotected in many NRs, especially in developing countries (David Western, 1999). They also believe that the above problems can begin to be resolved if there are appropriate structures to allocate tourism revenue to the NR system (Héctor Caballos - Lascurain, 1999).
1.3. Ecotourism in Vietnam
In Vietnam, ecotourism has also received attention since the 1990s of the 20th century. Research projects on ecotourism have also been carried out since then, specifically:
Nguyen Thi Tu (2006) in her research "Solutions for developing Vietnam's ecotourism in the integration trend" analyzed in detail the conditions for developing Vietnam's ecotourism and the trend for developing Vietnam's ecotourism in the integration trend. However, the author has not clarified the potential for ecotourism in national parks and natural resource conservation areas as well as the management and exploitation of this tourism potential.
Nguyen Dinh Hoa (2006) in the study "Tourism - current situation and solutions for development in Vietnam" analyzed the conditions and solutions for tourism development in Vietnam but did not highlight this activity in Vietnam.
The study by Hoang Hoa Quan and Ngo Hai Duong (2005) on "The current status of ecotourism activities in Vietnam and development orientation" has clarified the current status of ecotourism activities in Vietnam, but has not yet mentioned much about the relationship between tourism development and sustainable development.
At the International Conference on "Building a national strategy for ecotourism development in Vietnam" held in September 1999, organized in coordination with the Vietnam National Administration of Tourism, UICN, ESCAP and sponsored by SIDA, many presentations were made about the experiences and realities of ecotourism development in many places such as:
- A solution for developing ecotourism and conserving Ba Vi National Park and surrounding areas by author Vu Dang Khoi (2004). The author has proposed solutions for developing ecotourism in Ba Vi National Park and the method the author used is qualitative method.
- Similarly, the research on building a business strategy for ecotourism products in Ba Vi National Park by author Nguyen Van Hop (2007) analyzed the current situation of ecotourism product business in Ba Vi National Park and from there proposed business strategies for ecotourism products here. However, the method in Nguyen Van Hop's research also only used qualitative methods.
- Biodiversity conservation and sustainable ecotourism development in Ba Vi National Park and the market economy buffer zone by author Nguyen Duc Hau (2006). In this research work, the author mainly mentions biodiversity conservation and the relationship between biodiversity conservation and ecotourism development.
- Characteristics of ecotourism and the business potential of this type of tourism in national parks and nature reserves of Vietnam by author Nguyen Van Manh (2000). In this study, the author analyzed the aspect of exploiting tourism potential in national parks to develop ecotourism. The author clarified the tourism potential in national parks in accordance with the nature and characteristics of ecotourism, but did not specify how to exploit this tourism potential.
The research results at the conference have clarified the basic contents of ecotourism in Vietnam, which are useful bases for the development of ecotourism in Vietnam. However, there are very few research works on ecotourism in Vietnam.





