Analysis of Vegetation Change in Mt. Qomolangma Natur al Reserver
Received date: 2006-04-01
Revised date: 2006-05-01
Online published: 2006-05-25
Based on the NOAA AVHRR - NDVI data from 1981 to 2001, digitalized China Vegetation Map (1∶1 000 000), temperature and precipitation data, DEM, and spatial people density data in 2000, the spatial patterns and characteristics along the altitude gradients of the vegetation change as well as their factors in Mt. Qomolangma Natural Reserver have been studied. The results show that: (a) there are notable spatial differences of vegetation change in Mt. Qomolangma Natural Reserver and stability is the most common status. 5.09 percent of the whole area is becoming serious degradation, 13.34 percent degraded, 54.31 percent keeping stable, 26.31 percent turning better and 0.95 percent notably turning better. The degradation and serious degradation areas mostly lie in the south of the Reserver, which are along the national boundaries. The areas of vegetation turning better lie in the north of the Reserver and the south side of the Yarlung Zangbo River. The stable areas lie between the better and worse areas. Along with the increase of elevation, the states of vegetation changes transit from degradation to stability. At the altitude from 2400m to 4000m vegetations are in degraded change condition while at the altitude from 4000m to 6000m vegetations are stable. (b) The degenerated objects in Mt. Qomolangma Natural Reserver are most composed of shrubs, needle- leaf forests and needle- leaf and broad- leaf mixed forests. Plant changes can be divided into three types: (1)Stable to growing better. They are steppes and meadows. (2)Stable to degraded. They are shrubs and alpine sparse vegetation. (3)Degraded. They are needle- leaf forests and needle- leaf and broadleaf mixed forests. (c) The temperature change affects vegetation change in space while the integration of temperature changes and slopes affects vegetation change along the altitude gradients. Spatial correlation coefficient of temperature change and NDVI change is 0.51. Correlation coefficients along the altitude gradients of temperature change and NDVI change and slope and NDVI change are 0.946 and - 0.896. (d) Unconscionable resource use mode made by human beings leads to the vegetation degeneration in some parts of Mt. Qomolangma Natural Reserver. Bio- resources are continually used to meet the need of economic development and human living, which are hard to regenerate in such a rigorous environment. Because of poverty and severe environment in Mt. Qomolangma Natural Reserver, sustainable development should be consistent with economic development. A series of adaptive policies and modes such as protecting bio- resources, altering industry structures and eliminating hunger and poverty should be taken to keep sustainable development.
ZHANG Wei,ZHANG Yili,WANG Zhaofeng,DING Mingjun,YANG Xuchao,LIN Xuedong,YAN Yuping . Analysis of Vegetation Change in Mt. Qomolangma Natur al Reserver[J]. PROGRESS IN GEOGRAPHY, 2006 , 25(3) : 12 -21 . DOI: 10.11820/dlkxjz.2006.03.002
[1] 李渤生. 雪域奇葩—珠穆朗玛峰自然保护区. 人与生物圈, 2001, 2: 4~11.
[2] 林杉. 珠峰自然保护区被列入世界生物圈保护区. 新华网, 2005 年3 月25 日.
[3] 次旦伦珠. 珠穆朗玛峰自然保护区概况. 中国藏学, 1997, 1∶3~22.
[4] Gupta R K. Impact of human influences on the vegetation of the Western Himalaya. Plant Ecology (Historical Archive), 1978, 37(2): 111~118.
[5] Chalise S R. Energy efficiency and conservation in Nepal. Energy, 1983, 8(1- 2): 133~136.
[6] Sharma S, Singh S P. Energy use pattern and sustainable development: a case study in rural landscape of the Central Himalaya. Landscape and Urban Planning, 1994, 29(1): 19~24.
[7] Shrestha K L. Nepal' s energy situation. Energy, 1981, 6(8): 817~821.
[8] Tiwari P C. Land- use changes in Himalaya and their impact on the plains ecosystem: need for sustainable land use. Land Use Policy, 2000, 17(2): 101~111.
[9] Brown S. Shrestha B. Market- driven land- use dynamics in the middle mountains of Nepal. Journal of Environmental Management, 2000, 59(3): 217~225.
[10] Negi A K, Todaria N P. Studies on the impact of local folk on forests of Garhwal Himalaya. 1 ∶Energy from biomass. Biomass and Bioenergy, 1993, 4(6): 447~454.
[11] Negi A K, Bhatt B P, Todaria N P. Local population impacts on the forests of Garhwal Himalaya, India. The Environmentalist, 1999, 19(4): 293~303.
[12] Ali J, Benjaminsen T A, Hammad A A, et al. The road to deforestation: An assessment of forest loss and its causes in Basho Valley, Northern Pakistan. Global Environmental Change Part A, 2005, 15(4): 370~380.
[13] Awasthi A, Uniyal S K, et al. Forest resource availability and its use by the migratory villages of Uttarkashi, Garhwal Himalaya (India). Forest Ecology and Management, 2003, 174(1- 3): 13~24.
[14] 杨续超, 张镱锂, 张玮等. 珠穆朗玛峰地区近34 年来气候变化. 地理学报, 2006, (3): 687~696.
[15] 江荻. 珠穆朗玛峰. 北京: 商务印书馆, 1974.
[16] 费金深. 珠穆朗玛峰科学考察散记. 天津: 天津科学技术出版社, 1981.
[17] 中国科学院青藏高原综合科学考察队. 青藏高原科学考察丛书—西藏植被. 北京: 科学出版社, 1988.
[18] 中国科学院西藏科学考察队. 珠穆朗玛峰地区科学考察报告1966~1968( 自然地理) . 北京: 科学出版社, 1975.
[19] 西藏自治区统计局编. 西藏统计年鉴2001. 北京: 中国统计出版社, 2001.
[20] 陶波. 气候变化驱动的中国陆地生态系统碳收支格局初步研究. 博士后研究工作报告, 2005.
[21] Micael C. Runnstrom. Is Northern China winning the battle against desertification?- Satellite remote sensing as a tool to study biomass trends on the Ordoas Plateau in Semiarid China. AMBIO, 2000,29(8): 468～476.
[22] 丁明军, 沈振西, 张镱锂, 等. 青藏公路与铁路沿途1981 年～2001 年植被覆盖变化. 资源科学, 2005, 27(5): 128~133.
[23] Miehe G. Vegetation patterns on Mount Everest as influenced by monsoon and fonn. Plant Ecology (Historical Archive), 1988, 79(1- 2): 21~32.
[24] 冯松, 汤懋苍, 王冬梅. 青藏高原是我国气候变化启动区的新证据. 科学通报, 1998, 43(6): 633~636.
[25] Watson R T, the Core Writing Team (Eds.). Climate Change 2001∶Synthesis Report. IPCC, Geneva, Switzerland, pp 184.
[26] 高志强, 刘纪远, 曹明奎等. 土地利用和气候变化对区域净初级生产力的影响. 地理学报, 2004, 59(4): 581~591.
[27] 彭跃明. 国家级珠穆朗玛峰自然保护区脱隆沟核心区森林资源保护与对策. 四川林勘设计, 1999, 1∶4~8.
[28] 朱玉坤, 呢木才让. 论西藏森林资源的功能定位与发展策略. 西藏研究, 2002, 1∶97~103.
[29] 何满洪. 珠峰环保: 为人类留下一片圣洁的净土. 中国西藏信息中心, 2005 年8 月17 日.
[30] 张镱锂, 黄荣福, 王兆锋等. 珠穆朗玛峰地区第四次综合科学考察—生物与环境组野外调研记录. 中国科学院地理 科学与资源研究所青藏高原土地变化研究组, 2005 年.
[31] 赵亚辉. 科考发现: 珠峰保护区核心区草地退化严重. 人民网, 2005 年5 月19 日.
[32] 罗晖, 游雪晴, 房琳琳. 重测珠峰: 科考一路新发现. 科技日报, 科报视点, 2005 年5 月22 日.
[33] 董晓瑞. 草地退化本底不清. 科学时报, 2005 年8 月1 日.
[34] 西藏自治区统计局编. 西藏统计年鉴1993. 北京: 中国统计出版社, 1993.
[35] 西藏自治区统计局编. 西藏统计年鉴1996. 北京: 中国统计出版社, 1996.
[36] 西藏自治区珠峰自然保护区人类持续发展方案概况. 中国国际经济技术交流中心, 1996.
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