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Na Hang Nature Reserve, Tat Ke Sector 1997 ACKNOWLEDGEMENTS This report is the culmination of the advice, co-operation, hard work and expertise of many people. In particular acknowledgements are due to the following: IEBR Fish Expert: Botanist: Taxonomist: Taxonomist: Dr Nguyen Kim Son Dr Nguyen Kim Dao Professor Cao Van Sung Dr. Nguyen Van Sung SOCIETY FOR ENVIRONMENTAL EXPLORATION Managing Director: Ms. Eibleis Fanning Research Programme Manager: Ms. Leigh Stubblefield Operations Manager: Ms. Amy Banyard-Smith Hanoi University Botanist: Russian Tropical Centre Taxonomist: FRONTIER-TANZANIA Research Co-ordinator: Assistant Research Co-ordinators: Camp Co-ordinator: Field Assistants: Research Assistants: Dr Tran Dinh Nghia Dr. Alexander Monastyrskii Mr. Michael Hill Mr. Dan Hallam Ms. Maysie Harrison Ha Quy Quynh and Tran Quang Ngoc Ms. Emma Segar, Mr. Kevin Bowyer, Mr.Charlie Cox, Mr. John Gilhooley, Jun Kino, Mr. Ross McCleod, Ms. Natasha Ralphs, Ms. Dorit Stumper, Mr. Gero von Hasa-Radlitz, Ms. Allyson Steels, Ms. Alexandra Hamilton, Mr. Steven Hughes and Mr. Mark Kinlon Editorial Comments: Dr. Neil Burgess, SEE and Darwin Centre for Tropical Biodiversity, University of Copenhagen; Ms. Leigh Stubblefield, SEE. Frontier-Vietnam Environmental Research Report 9 vii
Na Hang Nature Reserve, Tat Ke Sector 1997 1.0 INTRODUCTION 1.1 General description Na Hang Nature Reserve, Tuyen Quang Province, Vietnam, is made up of two wilderness zones; Tat Ke sector to the North of Na Hang town, and Ban Bung sector to the South (see Figure 1). The southern sector was the site of a biodiversity and socio-economic study by the Society for Environmental Exploration (SEE) in early 1996 (Hill and Kemp, 1996). The aim of SEE-Vietnam's second project in this reserve was to extend the survey work carried out on the biology and sociology of the Ban Bung sector in January to March 1996 to include the northern Tat Ke sector, and this report describes the results of work carried out in the Tat Ke sector only. 1.2 Location The northern (Tat Ke) sector of the reserve is bounded on the East by the River Gam and a tributary which joins the Gam at Pac Von. To the North, the boundary is formed by the borders of the Con Lon and Yen Hoa districts. In the West, the boundary is formed by the Yen Hoa River (a tributary of the River Nang), and the Na Hang-Con Phay road (in places, little more than a track). In the South, the River Nang is the boundary, and the southernmost point of the sector is at the confluence of the Rivers Nang and Gam (see Figure 3). Tat Ke has a large human population, and several villages occur within the reserve boundaries (particularly in the northern part of the sector). The largest settlement is Khau Tinh, and the majority of the sector is in the Khau Tinh subdistrict. The are also smaller villages and isolated farmsteads found throughout the sector, although few occur in the South and West of the sector. 1.3 Topography and Geology The Tat Ke sector, like the southern Ban Bung sector, is made up of steep limestone hills. The majority of the sector, and the reserve as a whole, lies between 300 and 800m above sea level (asl.) The highest mountain in the Tat Ke sector reaches 1,064m asl.(Cox, 1994), and the highest peaks are concentrated in the central part of the sector. The western part of this block is called Nui Khau Tep (Khau Tep Mountain). Two distinctive isolated hills of 926m and 814m asl. lie at the southernmost point of the reserve (see Figure 3). Along the banks of the Rivers Nang and Gam, there are narrow strips of level land which are now almost entirely under cultivation. Several plateaux exist at higher elevations within the reserve, for example, around the village of Khau Tinh. These are also used as arable land, particularly for rice and maize cultivation. Frontier-Vietnam Environment Research Report 9 1
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Appendix 1. Habitat; Plants Plant s
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Species Habitat Fertile Uses/Status
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stages SONNERATIACEAE 638. Duabanga
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FOREST TRANSECT 1 Key: Ac Ao Ar Cl
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FOREST TRANSECT 3 Key: Cl Clusiacea
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Appendix 3. Forest plot data
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Myrtaceae 4 1.081 3.60 8 1.250 4.66
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Nymphalidae 32. Cethosia biblis Dru
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Appendix 4b. Butterflies recorded a
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1 2 3 4 5 25 Opsarichthys uncirostr
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Appendix 6. Amphibians and Reptiles
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A B C Upupipae: Hoopoe 14. Hoopoe (
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A B C Subfamily Muscicapinae: Flyca
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7b. Formulation used for the assess
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Appendix 8. Key; A Identified from:
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Appendix 9. List of specimens Insec
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