Growth Parameters of Plants in Strip No. 1 Growth Measurement Chart of Seedlings in Strip No. 1

CONCLUSION AND RECOMMENDATIONS


CONCLUDE

The topic has investigated the present


eardrum


area


Xuan Thuy National Park meets all criteria

Based on the results of the silvicultural (D, H, N, biomass, etc.), the assessment results show that the RNM in the research area is showing signs of degradation and will continue to become more serious in the future, in both quantity and quality. The regeneration of forest plants is taking place but is still slower than the rate of degradation.

The model run results showed a decrease in individual density and biomass of

species over time

Species composition in the study area is still quite poor, with 2 main plant species (2 official mangrove species: Sonneratia, Trang and 01 additional mangrove species: Su). The number of Trang species is still absolutely dominant and dense because it is planted for the purpose of soil retention, wave protection, and coastal protection.

The project proposed forest planning according to sea level rise scenarios at the time points 2030, 2050, 2100 with the respective areas being: 2,042 ha; 3,623 ha; 4,732 ha, divided into 3 stages as follows:

- Period 2011-2030: Maintain strictly protected forest area (1,206 ha) and increase afforestation and forest restoration in existing aquaculture areas, by 2030 the area will have 3,623 ha of mangrove forest land.

- Phase 2030 - 2050: continue to expand the area of ​​strictly protected forests,

Promote afforestation and forest restoration, by 2050 the region will have 3,623 hectares of mangrove forest land.

- Period 2050 - 2100: expand the area of ​​strictly protected forests, promote afforestation, by 2100 the region will have 4,732 hectares of mangrove forest land.

RECOMMENDATION

Developing a detailed plan for planting and managing mangrove forests in Xuan Thuy National Park

The study recommends planting more new species suitable for the region's climatic conditions.

The study proposes a thinning solution to create space for natural RNM regeneration.

It is necessary to study and build a bank to preserve and conserve plant species that once existed and developed in the area.

Building a legal framework and policy mechanisms to support the conservation and development of mangrove forests.

Continued research on modeling the impact of environmental factors on growth and development fluctuations of CNM species in all regions across the country.

Continued Xuan Thuy.

like research for seriousness

Model results at the National Park

REFERENCES


Vietnamese


1. Ministry of Natural Resources and Environment, 2009. Climate change and sea level rise scenarios for Vietnam

2. Ministry of Natural Resources and Environment, 2011. Climate change and sea level rise scenarios for Vietnam

3. Nguyen Thi Kim Cuc (2004). Sociology of mangrove plants in Thuy Truong commune, Thai Thuy district, Thai Binh province.

4. Nguyen Van Cu (1984). Characteristics of water level fluctuations in coastal areas of Vietnam, Collection of Earth Sciences

5. Nguyen Duc Cu (1996). Tidal wetland changes in the estuary of the Red River Delta, Journal of Earth Sciences

6. Le Dien Duc (2009). Wetland ecosystem management. Graduate training materials (CRES)

7. Luu Duc Hai (2009). Environmental science foundation, Hanoi National University Publishing House

8. "Nguyen My Hang and Phan Nguyen Hong (1995). Studying the effects of low temperature on the growth of some species in the family Rhizophora

(Rhizophraceae) experimental planting, National workshop on restoration and management of mangrove ecosystems in Vietnam, Hai Phong."

9. Nguyen Hoan (1996). Research on topographic changes and the formation process of sandbanks in the Red River estuary (Ba Lat estuary), Institute of Geography, University of Natural Sciences

10. Pham Hoang Ho (1960). Ecology and geography of submerged plants


11. Phan Nguyen Hong (1984). Assessment of mangrove ecosystem resources and the role of forests in marine resources, Scientific Conference on Mangrove Ecosystem

12. Phan Nguyen Hong (1984). Results of the survey of mangrove flora in Vietnam, Scientific conference on mangrove ecosystem in Vietnam,

13. Phan Nguyen Hong (1999). Vietnam's mangrove forests, Agriculture Publishing House.


14. Phan Nguyen Hong (1991). Assessment of the impact of ecological factors on the distribution of RNM

15. Phan Nguyen Hong (1991). Ecology of mangrove forests in Vietnam, PhD thesis in Biology, Hanoi National University of Education

16. Phan Ke Loc, Nguyen Tien Hiep (1998). Some data on plants in Xuan Thuy Nature Reserve,

17. Nguyen Phuong Nga (1980). Initial research on water regime of some CNM species

18. Le Thi Phuong (1980). Initial study of some ecological characteristics of mangrove plants related to salt regime.

19. Vu Trung Tang (1993). Estuarine ecosystems of Vietnam, Science and Technology Publishing House.

20. Tran Thuc, Duong Hong Son (2012). Rising sea levels and their impacts on Vietnam,

21. Dang Trung Tan (1994). Silvicultural developments on land use types of Minh Hai flooded forest

22. Dao Van Tan and Tran Van Ba ​​(2004). Effects of low temperature on growth and survival rate of Sonneratia caseolaris planted in Giao Thuy, Nam Dinh

23. Center for Geotechnical Engineering and Technology, Special Report on Transforming the Structure of Reasonable Use of Resources in Xuan Thuy National Park Area,

24. Mai Sy Tuan, Phan Nguyen Hong, (1984). Some ecological characteristics of species in the genus Mam

25. Mai Sy Tuan (1995). Effects of salinity on germination, growth and photosynthesis of Avicennia marina

26. Nam Dinh Provincial People's Committee (2004). Planning for management, protection and development of Xuan Thuy National Park,

English


27. Berger, U. and H. Hildenbrandt (2000). A new approach to spatially explicit modeling of forest dynamics: spacing, aging and neighborhood competition of mangrove trees

28. Berninger, F. and E. Nikinmaa (1997). Implications of varying pipe model relationships on scots pine growth in different climates

29. Botkin, D.B. (1993). Forest dynamics. An Ecological Model. Oxford University Press

30. Chapman. VJ (1976). Mangrove vegetation, Auckland University NewZealand

31. Chen, R. and R.R. Twilley (1998). A gap dynamic model of mangrove forest development along gradients of soil salinity and nutrient resources. Journal of Ecology 86, 37-51

32. Ellison, J. (1993). Mangrove Retreat with Rising Sea-level. Bermuda, Estuarine. Coastal and Shelf Science, 37: 75-87.

33. Islam MR (2004). Where Land Meets the Sea: A Profile of the Coastal Zone of Bangladesh. Dhaka: University Press Limited

34. Luan, J., R.I. Muetzelfeldt, and J. Grace (1996). Hierarchical approach to forest ecosystem simulation. Ecological Modeling 86, 37.

35. Mladenoff, D. and W. Baker (1999). Spatial modeling of forest landscape change: approaches and applications. Cambridge University Press

36. Hoang Anh Nguyen (2011). A model for predicting mangrove forest dynamics under variable environmental conditions - A Case study of the Estuary of Dongnai - Saigon River system, Vietnam

37. Semeniuk, V. (1994). Predicting the Effect of Sea-level Rise on Mangroves in Northwestern Australia. Journal of Coastal Research, 10(4): 1,050-1,076

APPENDIX


TT

H (cm)

Diameter (mm )

Note

OTC

1

22

1

Page

1

2

26

1.15

Page

1

3

39.2

0.75

Page

1

4

30.6

0.9

Page

1

5

28.6

1.1

Page

1

6

19.3

0.8 5

Page

1

7

31

0.9

Page

1

8

34.3

1.15

Page

1

9

25.9

0.65

Page

1

10

27

1, 2

Page

1

11

20

1 , 2

Sonneratia

1

12

26

1.7

Sonneratia

1

13

27.5

1 , 5

Sonneratia

1

14

28

1 , 4

Sonneratia

1

15

23

1.3

Sonneratia

1

16

21.5

1.1

Sonneratia

1

Maybe you are interested!

Growth Parameters of Plants in Strip No. 1 Growth Measurement Chart of Seedlings in Strip No. 1

TT

H (cm)

Diameter (mm )

Note

OTC

17

18.5

0.7

Page

2

21

1.1

62

Page

3

22

1.2

42 , 5

Page

3

23

1

48

Page

3

24

1.7

94.5

Page

3

25

0.9

60.5

Page

3

26

1.25

17.6

Page

3

27

1.1

65.5

Page

3

28

0.7

26.4

Page

3

29

1

68.5

Page

3

30

1.2

78.6

Page

3

31

1.3

55

Page

3

32

0.7

39

Page

3

33

0.65

20.3

Page

3

34

0.8

65.5

Page

3

Appendix 1: Growth indicators of plants in strip 1 Growth measurement chart of seedlings in strip 1

Growth measurement chart of tall trees in Tape No. 1


TT

D0.3 (D1.3)

H

(cm)

H tan (cm)

D tan (cm)

Note

OTC

1

4

355

85

45

Page

1

2

6.6

367

87

56

Page

1

3

3.2

369

68

63

Page

1

4

3.4

303

62

71

Page

1

5

3.5

400

79

64

Page

1

6

3.1

368

82

62

Page

1

7

4

346

48

80

Page

1

8

4.2

360

70

65

Page

1

9

3.4

368

90

64

Page

1

10

2.4

304

71

59

Page

1

11

3.1

359

49

72

Page

1

12

4.4

360

81

71

Page

1

13

3.3

367

66

46

Page

1

14

2.4

354

63

57

Page

1

15

3

355

59

57

Page

1

19

2.5

352

69

84

Page

1

20

1.7

380

43

35

Page

1

21

2.1

356

73

66

Page

1

22

2.6

353

63

60

Page

1

23

4

367


118

Sonneratia

2

24

3.7

345


136

Sonneratia

1

25

2.9

291


114

Sonneratia

1

TT

D0.3 (D1.3)

H

(cm)

H tan (cm)

D tan (cm)

Note

OTC

26

1, 5

167


93

Sonneratia

1

27

1.2

165


83

Sonneratia

1

28

3

343


115

Sonneratia

1

29

3.6

379


159

Sonneratia

1

30

5.1

458

73

63

Page

2

31

3

462

77

76

Page

2

32

3.7

453

62

52

Page

2

33

4.6

472

113

100

Page

2

34

5.6

481

83

112

Page

2

35

3.1

467

93

83

Page

2

36

3.7

471

80

71

Page

2

37

3.6

471

81

61

Page

2

38

3.3

461

49

55

Page

2

39

5.7

476

80

150

Page

2

40

4.6

469

76

87

Page

2

41

6.3

491

64

145

Page

2

42

5.2

483

63

107

Page

2

43

3.2

469

72

94

Page

2

44

4.7

496

87

106

Page

2

45

4.4

481

70

66

Page

2

46

3.1

473

56

75

Page

2

47

4

474

39

100

Page

2

TT

D0.3 (D1.3)

H

(cm)

H tan (cm)

D tan (cm)

Note

OTC

48

5.1

472

69

124

Page

2

49

4.2

475

78

74

Page

2

50

6.3

502

88

150

Page

2

51

4

497

80

99

Page

2

52

5.4

491

75

106

Page

2

53

3.8

472

55

94

Page

2

54

3.9

471

59

82

Page

2

55

3.3

482

63

72

Page

2

56

4

475

68

65

Page

2

57

5.1

469

68

96

Page

2

58

2.7

472

54

61

Page

2

59

5.6

466

81

127

Page

2

60

5.2

452

76

140

Page

2

61

4

470

75

67

Page

2

62

4.1

469

74

76

Page

2

63

3.8

463

76

91

Page

2

64

5.5

485

71

135

Page

2

65

2.4

440

26

38

Page

2

66

5

488

58

112

Page

2

67

4.5

472

66

120

Page

2

68

3.8

478

63

84

Page

2

69

2.6

470

50

78

Page

2

70

3.4

475

60

95

Page

2

TT

D0.3 (D1.3)

H

(cm)

H tan (cm)

D tan (cm)

Note

OTC

71

4.4

472

55

67

Page

2

72

4.2

474

67

115

Page

2

73

5

481

54

125

Page

2

74

4.4

436

49

33

Page

2

75

4

493

72

91

Page

2

76

3.6

479

75

77

Page

2

77

5.3

495

89

134

Page

2

78

4.6

491

71

86

Page

2

79

4.3

493

77

92

Page

2

80

3.6

491

60

87

Page

2

81

3.9

482

76

89

Page

2

82

4.4

492

92

117

Page

2

83

4.6

483

71

80

Page

2

84

3.6

484

68

67

Page

2

85

4.5

493

68

110

Page

2

86

4.2

483

78

116

Page

2

87

3.1

468

78

100

Page

2

88

5

484

64

40

Page

2

89

3

437

42

105

Page

2

90

2.6

450

48

55

Page

2

91

4.4

490

82

114

Page

2

92

5.6

490

84

148

Page

2

93

6.4

520

100

138

Page

2

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