| 南疆典型绿洲土地利用空间格局变化特征分析——以疏勒县为例 |
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| 引用本文： | 满苏尔·沙比提,祖丽胡玛尔·达吾提.南疆典型绿洲土地利用空间格局变化特征分析——以疏勒县为例[J].干旱区资源与环境,2012(8):84-88. |
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| 作者姓名： | 满苏尔·沙比提 祖丽胡玛尔·达吾提 |
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| 作者单位： | 新疆师范大学地理科学与旅游学院 |
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| 基金项目： | 国家自然科学基金项目(40961032)资助 |
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| 摘 要： | 利用新疆疏勒县三期遥感影像解译得到的数据,对疏勒县土地利用空间格局变化进行深入分析。分析结果表明:(1)研究区内耕地、林地、草地和建设用地四者之和面积占该区总面积的52.97%,盐碱地和沙地等未利用地占44.35%。1990～2006年间,林地、草地、建设用地面积大幅度增加;盐碱地和沙地面积大幅度减少。其充分说明人类活动对土地利用/覆被类型变化影响越来越强烈。(2)研究区土地利用/覆被类型转移的主要方向是耕地转化为林地和草地,草地和沙地转化为耕地,耕地和草地转化为建设用地,草地转化为沙地。土地利用变化经历了"显著变化-缓慢变化-显著变化"的过程。(3)景观格局分析表明,在人类活动的影响下,研究区景观破碎度、多样性增大,优势度减小。驱动力分析表明,人口增长和经济发展因素是研究区土地利用/覆被变化的最直接驱动力,同时还受产业结构和政策因素及人类干扰强度的影响。
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| 关 键 词： | 土地利用/覆被类型 时空变化 疏勒县 |
Dynamic characteristics of spatial pattern of the typical oasis land use in Shule County,southern Xinjiang |
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| Institution: | Mansur·Shabit,Zulhumar·Dawut (Institute of Geographical Science and Tourism,Xinjiang Normal University,Urumqi 830054,P.R.China) |
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| Abstract: | The dynamic changes of land use/cover in the study area were monitored by employing TM and ETM+ Landsat images acquired in 1990,1999 and 2006.According to the data,proportion of the land use/cover constitution,dynamic changes of individual land type and the comprehensive land use and the transfer for the land use/cover type were analyzed.Results showed that:(1)Total area of arableland,woodland,grassland and construction land accounted for 52.97% of the total area of the study area,unused land such as saline-alkali land,sandyland accounted for 44.35% of the study area.During 1990~2006,area of woodland,grassland and construction land greatly increased,while the area of unused land drastically reduced.This fully explains that effects of human activities on the land use type changes became more and more intense.(2)The main direction of land use/cover type transfer of the study area was that arableland was transformed into woodland and grassland,grassland and sandyland into farmland,arableland and grassland into construction land,grassland into sandyland.The changes of land use experienced the process of "significant change-slow change-significant change ".(3)The landscape pattern analysis showed that under the influence of human activities the landscape fragmentation and diversity in the study area increased,the advantage degree reduced.Driving force analysis showed that the population growth and economic development factor were the most direct driving forces for land use/cover change in the study area,it was also affected by the industrial structure factors,policy factors and human interference strength. |
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| Keywords: | land use/cover type spatio-temporal changes Shule County |
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