[1]杨国清,李月臣.基于RS和GIS的小流域土地利用时空变化分析——以甘肃省天水市罗峪沟流域为例[J].水土保持研究,2009,16(06):194-199.
　YANG Guo-qing,LI Yue-chen.Analysis of Spatial-temporal Distribution of Land Use Patterns of Small Drain Basin Based on RS and GIS—A Case Study for Luoyugou Basin,Tianshui City, Gansu Province[J].Research of Soil and Water Conservation,2009,16(06):194-199.
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基于RS和GIS的小流域土地利用时空变化分析——以甘肃省天水市罗峪沟流域为例

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 16 期数: 2009年06期 页码: 194-199 栏目: 出版日期: 2009-12-20
Title:
Analysis of Spatial-temporal Distribution of Land Use Patterns of Small Drain Basin Based on RS and GIS—A Case Study for Luoyugou Basin,Tianshui City, Gansu Province
作者:
杨国清1,2,1,2, 李月臣3
1. 重庆师范大学 地理科学学院, 重庆 400047;
2. 重庆市高校GIS应用研究重点实验室, 重庆 400047;
3. 华北水利水电学院 资环学院, 郑州 450011
Author(s):
YANG Guo-qing1,2,1,2, LI Yue-chen3
1. College of Geographical Science, Chongqing Normal University, Chongqing 400047, China;
2. College of Geography Science, Key Laboratory of GIS Application, Chongqing Normal University, Chongqing 400047, China;
3. North China Institute of Water Conservancy and Hydropower Power, Zhengzhou 450011, China
关键词:
遥感; 地理信息系统; 土地利用; 罗峪沟流域
Keywords:
RS; GIS; land use; Luoyugou basin
分类号:
F301.24
摘要:
根据甘肃省天水市罗峪沟流域1986年矢量格式的土地详查数据库，1990年、1995年和2001年 的Landsat TM影像数据，利用地理信息系统和遥感技术，结合空间分析技术和数理统计方法，分析了天水市罗峪沟流域土地利用的数量变化和空间变化特征。明确了研究区主要的土地利用类型，研究区综合土地利用动态度和研究区主要的土地利用类型之间的转移及其速度。结果显示：近11 a该流域土地利用以耕地和林地为主，两者占土地总面积的80%以上；研究区1990-1995年综合土地利用动态度为0.23%，1995-2001年综合土地利用动态度为1.09%，1990-2001年综合土地利用动态度达0.89%；土地利用类型转移的主要方向是向林地转移，占总变化面积的86.82%。其次是转向草地，占总变化面积的10.93%。再次是转向耕地和未利用地，分别占总变化面积的1.183%和1.060%。耕地流向林地的转移速度平均每年35.67 hm2 ；耕地的另一个主要流向是草地，其平均每年转移速度3.41 hm2；未利用土地减少的幅度也比较大，其主要的转向是林地，平均每年转移速度6.09 hm2；未利用地另外一个转移方向是草地，平均每年的转移速度是1.77 hm2；河床地流出方向主要是林地，其平均每年转移速度是5.31 hm2；其次是未利用地和耕地，其平均每年的转移速度分别为0.58 hm2和0.16 hm2；还有其它各种类型之间的转移，其平均每年的转移速度相对较小。
Abstract:
Taking the 1986 vector form based land detailed survey database and the 1990, 1995, and 2001 satellite data as information resources, this paper discussed the land-use and land-cover change of Luoyugou basin located in Tianshui city, Gansu Province.Based on the spatial analysis techniques supported by Arc/Info software and other mathematical statistical methods, this paper analyzed the spatial-temporal change characteristics of land use in the small watershed, revealed the major patterns and trends of land use and land cover change, the use of land-use dynamic degree of land-use change and the direction of the transference of land-use types and speed. The results show that the major land covers in the watershed are farmland and forestland which account for more than 80% of the whole area in the past 11 years. The basin of the comprehensive land-use dynamic degree is 0.23% from 1990 to 1995, and 1.09% from 1995 to 2001 and 0.89% from 1990 to 2001. The transference of land-use types of the main direction is to the forest land, which accounts for 86.82 % of the total change area. Secondly, at the turn of grass land, grass land accounts for 10.93% of the total change area. Last but not least, cropland accounts for 1.183%and the virgin land accounts for 1.060%.The conversions of cropland to forest, cropland to grassland are the major patterns of land use change. Which the average annual rates of conversion are 35.67 hm2 and 3.41 hm2. The average annual rates of conversions of the virgin land to forest, the virgin land to the grassland are 6.09 hm2 and 1.77 hm2; The average annual rate of conversions of the riverbed land to forest land is 5.31 hm2; There are other types of conversion which the average annual rate is much smaller.

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备注/Memo

收稿日期:2009-5-15;改回日期:。
基金项目:国家自然科学基金（40801077）；重庆市自然科学基金（CSTC2008BB7367）；重庆市教委科技项目（KJ070811）
作者简介:杨国清（1983- ），女，山东聊城人，硕士生，研究方向为资源环境遥感与GIS。E-mail：yanggq0922@163.com
通讯作者:李月臣（1974- ），男，山东德州人，博士后，副教授，主要从事资源环境遥感与GIS研究。E-mail：liyuechen@cqnu.edu.cn

更新日期/Last Update: 1900-01-01