| 疏勒河中游土地利用动态变化分析 |
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| 引用本文： | 马中华,张勃,张建香,靳生理,孙力炜.疏勒河中游土地利用动态变化分析[J].干旱区资源与环境,2012(8):97-101. |
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| 作者姓名： | 马中华 张勃 张建香 靳生理 孙力炜 |
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| 作者单位： | 西北师范大学地理与环境科学学院 |
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| 基金项目： | 国家自然科学基金项目(40961038);生态经济学省级重点学科(5002-021);西北师范大学知识与科技创新工程项目(NWNU-KJCXGC-03-66)联合资助 |
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| 摘 要： | 以疏勒河中游为研究区,利用ArcGIS9.2和ERDAS9.1平台,对1990年、2000年和2010年3期Landsat TM遥感影像进行目视解译,获取流域20年间土地利用/覆被变化遥感资料,通过土地利用动态度方法,分析流域20年主要土地利用类型的数量变化和土地利用/覆被变化的驱动力。结果表明:(1)1990-2010年间,疏勒河中游地区土地覆被类型主要为未利用地、牧草地、耕地,三者面积占研究区总面积的98.22%,20年间土地利用整体特征并未发生重大变化。(2)疏勒河中游主要土地利用类型变化发生在耕地、建设用地和牧草地,其土地利用动态度分别为13.60%、7.97%和7.68%。(3)政策和人口增长可能是促进土地利用/覆被变化的主要驱动因素。
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| 关 键 词： | 土地利用/覆被变化 土地利用动态度 遥感 GIS 疏勒河中游 |
The change of land use/cover in Shulehe River |
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| MA Zhonghua,ZHANG Bo,ZHANG Jianxiang,JIN Shengli,SUN Liwei.The change of land use/cover in Shulehe River[J].Journal of Arid Land Resources and Environment,2012(8):97-101. |
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| Authors: | MA Zhonghua ZHANG Bo ZHANG Jianxiang JIN Shengli SUN Liwei |
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| Institution: | (The College of Geography and Environmental Science,Northwest Normal University,Lanzhou,Gansu 730070,P.R.China) |
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| Abstract: | Land use and cover changes(LUCC) are not only one of the core issues of global change but also play a critical role in eco-environment construction,global environmental change and sustainable development.Land use and cover changes are the most prominent in the Shulehe River as a whole.Due to being located in an environmentally and regionally sensitive region,the Shulehe River has become a hot area regarding land use and cover change.In the present paper,the authors performed a study on LUCC over the Shulehe River,during the period 1990-2010 using Landsat TM images and GIS and Land-use Dynamic Degree techniques.In particular,the authors quantified changes in different kinds of land use types and analyzed their spatial variation trends and characteristics.Results are shown as follows.First,It was found that from 1990 to 2010,overall land use characteristics of the Shulehe River changed slightly,but the internal structure for each kind of land use types changed significantly.Unused land,Grassland and cultivated land were always major land use types during the 20 years,occupying approximately 98.22% of the total area,respectively.Second,from 1990 to 2010,most of land use changes occurred in cultivated land,built-up land and grassland,the velocities of land use changes were 13.60%,7.97%,7.68%,respectively.Third,LUCC is indeed a complex system,which is affected by many factors interrelated with each other,including both socio-economic and natural environment factors.Major driving forces for land use and cover change in the Shulehe River were probably considered policy and population growth. |
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| Keywords: | LUCC land-use dynamic degree remote sensing GIS Shulehe River |
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