[1]周绪,刘志辉,戴维,等.干旱区地下水位降幅对天然植被衰退过程的影响分析——以新疆鄯善南部绿洲群为例[J].水土保持研究,2006,13(03):143-145.
ZHOU Xu,LIU Zhi-hui,DAI Wei,et al.Analysing the Effects of the Depth Downrange of Groundwater on Nature Vegetation Degeneration in Arid Area——A Case from South Oases of Shanshan, Xinjiang[J].Research of Soil and Water Conservation,2006,13(03):143-145.
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《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]
卷:
13
期数:
2006年03期
页码:
143-145
栏目:
出版日期:
1900-01-01
- Title:
-
Analysing the Effects of the Depth Downrange of Groundwater on Nature Vegetation Degeneration in Arid Area——A Case from South Oases of Shanshan, Xinjiang
- 作者:
-
周绪1, 刘志辉1,2,3, 戴维1, 菊春燕1, 王云丰1
-
1. 新疆大学资源与环境科学学院, 乌鲁木齐 830046;
2. 干旱半干旱地区可持续发展国际研究中心, 乌鲁木齐 830046;
3. 教育部绿洲生态重点实验室, 乌鲁木齐 830046
- Author(s):
-
ZHOU Xu1, LIU Zhi-hui1,2,3, DAI Wei1, JU Chun-yan1, WANG Yun-feng1
-
1. College of Resources and Environment Science, Xinjiang University, Urumqi 830046;
2. Oasis Ecology Key laboratory of Xinjiang Uygur Autonomous region, Xinjiang University 830046;
3. International Center for Desert Affairs-Research on Sustainable
-
- 关键词:
-
地下水位降幅; 天然植被衰退; RS与GIS
- Keywords:
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downrange of groundwater depth; degeneration of natural vegetation; RS and GIS
- 分类号:
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X171.1
- 摘要:
-
综合运用RS、GIS及地理统计学的理论、技术,监测干旱区地下水位降幅对天然植被衰退过程的影响。结果表明:研究区内大部分绿洲位于20~30 m降幅之间,并由北向南呈环状递减;天然植被覆盖变化敏感区域居于5~8 m降幅之内,超过10 m降幅将出现严重退化区;天然植被大面积向绿洲东北方向退缩,15年间典型研究区天然植被面积减少近1/2,半固定沙丘面积增大而将成为新的沙尘策源地,绿洲生态环境更为脆弱。
- Abstract:
-
By integratively using RS, GIS and Geostatistics, the effects of downrange of the groundwater depth on nature vegetation degeneration in arid area were analyzed.The results showed that:(1) most of oases lied in 20~30 m of the downrange of groundwater depth which were decreased as circus from north to south in study area;(2) there were the sensitive region in 5~8 m and severe decline area over 10 m;(3) distributing region of nature vegetation countermarched from southwest to northeast, and its reduced area was closed to 50% for 15 years, the expanded semi-settled dune will be a new sandy headstream, so the state of local environment will be extremely frail and unsteady.
参考文献/References:
[1] 吐鲁番市统计局.吐鲁番统计年鉴[Z].北京:中国统计出版社, 1949-2004.
[2] 王政权.地质统计学及其在生态学中的应用[M].北京:科学出版社, 1999.1-149.
[3] 林辉, 赵双泉, 赵煜鹏.遥感数字图像的无缝镶嵌[J].中南林学院学报, 2004, 24(1):83-86.
[4] 衣伟宏, 杨柳, 张正祥.基于ETM+影像的扎龙湿地遥感分类研究[J].湿地科学, 2004, 2(3):208-212.
[5] Louisa J M Jansen, Antonio Di Gregorio.Parametric land cover and land-use classifications as tools for environmental change detection[J].Agriculture, Ecosystems and Environment, 2002, 91:89-100.
更新日期/Last Update:
1900-01-01