Position: Home > Articles > Analysis on the Factors Affecting the Spatiotemporal Evolution of Land Salinization in the Kuqa County Irrigated Area in Xinjiang
Arid Zone Research
2009,26
(4)
514-518
新疆库车县灌区土地盐渍化时空演变影响因子分析
作 者：
江红南;塔西甫拉提·特依拜;丁建丽
单 位：
新疆大学绿洲生态教育部重点实验室
关键词：
土地盐溃化;土地利用/覆被变化;灰色关联方法;人类活动;库车;新疆
摘 要：
为了定量研究土地盐渍化时空演变影响因子相对影响力的大小,以新疆库车县灌区为例,基于现阶段土地盐渍化研究成果,在3个不同的空间尺度下,分别提取8个土地盐渍化时空演变影响因子,应用灰色关联方法分析。结果表明:人类活动引起的土地覆盖/利用变化是主导因素,地形、地下水埋深、地下水矿化度在较小的空间尺度上起主导作用;土地覆盖/利用变化、水体、灌溉和排水渠系统在较大空间尺度上起主导作用;灌溉系统对土地盐渍化过程的影响大于排水系统;气候条件不是土地盐渍化发生演变的主要影响因子。
译 名：
Analysis on the Factors Affecting the Spatiotemporal Evolution of Land Salinization in the Kuqa County Irrigated Area in Xinjiang
作 者：
JIANG Hong-nan,Tahiplot·Tiyip,DING Jian-li (Key Laboratory for Oasis Ecosystem of Ministry of Education,Xinjiang University,Urumqi 830046,China)
关键词：
land salinization;;spatiotemporal evolution;;affecting factor;;Gray association analysis
摘 要：
In this paper,a case quantitative study on the driving forces of the spatiotemporal change of land salinization in the Kuqa County Irrigated Area,a typical arid area in Xinjiang,China,is carried out based on the current study achievements about land salinization by selecting 8 driving forces under 3 different spatial scales and analyzing these factors with the gray association degree method.The results reveal that the spatiotemporal change of land salinization in the study area is jointly affected by both artificial and natural factors,in which the land use/ cover change caused by human activities is the dominant factor,and the terrain,groundwater depth and groundwater salinity are the dominant factors on small spatial scale only;the land use/cover change,water bodies,irrigation and offtake systems are the dominant factors on large spatial scale;the effect of irrigation system on land salinization is higher than that of drainage system;climatic factors are not dominant in the evolution of land salinization in the study area.
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