| 县南沟流域农业土地利用/覆被变化浅析 |
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| 引用本文： | 杜娜,王继军.县南沟流域农业土地利用/覆被变化浅析[J].水土保持研究,2009,16(6). |
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| 作者姓名： | 杜娜 王继军 |
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| 作者单位： | 1. 西北农林科技大学,资源与环境学院,陕西,杨陵,712100
2. 中国科学院,水利部,水土保持研究所,陕西,杨陵,712100 |
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| 基金项目： | 国家科技支撑计划，中国科学院重大项目，国家自然科学基金 |
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| 摘 要： | 土地利用/覆被变化(LUCC)一直是国内外研究的热点,而对其重要组成部分农用地进行研究更具有重要的现实意义.运用变化度、动态变化指数等方法对黄土丘陵区县南沟流域2001-2007年的人口、土地面积、产业状况等调查数据的分析表明:7 a来林地和果园分别增加488 hm~2和23.34 hm~2、耕地和牧草地面积分别减少87 hm~2和25.7hm~2.引起这种变化的原因是:退耕还林政策的实施,大面积坡耕地和不适宜的荒草地转为林地;为适应市场经济发展的需要,部分耕地向园地过渡;同时科学技术与其它相关政策对其也有一定的促进、引导或制约作用.
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| 关 键 词： | 县南沟流域 农用地变化 经济利益 |
Agriculture Land Use/Land Cover Change of Xiannangou Watershed |
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| DU Na,WANG Ji-jun.Agriculture Land Use/Land Cover Change of Xiannangou Watershed[J].Research of Soil and Water Conservation,2009,16(6). |
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| Authors: | DU Na WANG Ji-jun |
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| Abstract: | Land use and land cover change(LUCC) is a hot spots all over the world. Study for agricultural land have more practical significance. The article analyzed the population, land areas and industrial development of 2001 to 2007 with change rate and dynamic change index method of Xiannangou watershed in Loess Hill and Gully Region. The research data shows that forest land and garden land increase 488 hm~2,23.34 hm~2; cultivated land and grassland decrease 87 hm~2, 25.7 hm~2 during 7 years. For this following reasons,the policy of returning farmland to forest make forest land instead of slope farmland and grassland; a part of cultivated land transit to garden land in order to adapt market economy. At the same time,science technology also offers advance, guide and condition. |
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| Keywords: | LUCC Xiannangou watershed LUCC agricultural land change economic benefit |
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