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| 黄土高原流域土地利用/覆被动态演变及驱动力分析 | |
| 引用本文： | 余新晓,张晓明,牛丽丽,岳永杰,武思宏,张满良.黄土高原流域土地利用/覆被动态演变及驱动力分析[J].农业工程学报,2009,25(7):219-225. |
| 作者姓名： | 余新晓 张晓明 牛丽丽 岳永杰 武思宏 张满良 |
| 作者单位： | 1. 北京林业大学水土保持与荒漠化教育部重点实验室,北京,100083 2. 中国水利水电科学研究院泥沙研究所,北京,100044 3. Department of Land and Water Resources Engineering,Royal Institute of Technology,Stockholm,SE-100 44,Sweden 4. 水利部黄河水利委员会天水水土保持试验站,天水,741000 |
| 基金项目： | 国家自然科学基金项目（40871136）；国家林业局林业公益性行业科研专项（200804022）“十一五”国家科技支撑项目（2006BAD09B02）；中国水科院科研专项（泥集QN0707） |
| 摘 要： | 该文采用土地资源数量变化模型和土地利用/覆被状态指数，研究了甘肃天水罗玉沟流域近20多年来土地利用/覆被的演变及驱动机制。研究结果表明：1986－2004年间，流域内坡耕地急剧减少、梯田迅速增加，林地和果园面积稳步提升。从土地利用类型转移变化看，梯田的转入速度略小于转出速度，为双向高速转换下的平衡状态；而灌木林转入速度小于转出速度，有规模减少的趋势。该地区土地利用类型在前期（1986－1995年）变化程度比后期（1995－2004年）更为剧烈。除特殊的地形地貌和气候因素外，政策、人口增长和经济发展等因素共同驱动土地利用类型的演变，特别实施天然林保护工程和退耕还林工程后，该地区土地利用状况有所好转。 |
| 关 键 词： | 土地利用/覆被变化，动态演变，驱动力，黄土丘陵沟壑区 |
| 收稿时间： | 2008/1/19 0:00:00 |
| 修稿时间： | 2009/6/23 0:00:00 |
Dynamic evolution and driving force analysis of land use/cover change on loess plateau watershed |
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| Yu Xinxiao,Zhang Xiaoming,Niu Lili,Yue Yongjie,Wu Sihong and Zhang Manliang.Dynamic evolution and driving force analysis of land use/cover change on loess plateau watershed[J].Transactions of the Chinese Society of Agricultural Engineering,2009,25(7):219-225. | |
| Authors: | Yu Xinxiao Zhang Xiaoming Niu Lili Yue Yongjie Wu Sihong and Zhang Manliang |
| Institution: | 1. College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China,2. Sediment Research Institute, China Institute of Water Resources and Hydropoewer Research, Beijing 100044, China,1. College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China,1. College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China,3. Department of Land and Water Resources Engineering, Royal Institute of Technology, Stockholm, SE-100 44, Sweden and 4. Scientific Trial Station of Soil and Water Conservation in Tianshui City, Water Conservancy Committee of Yellow River, Tianshui 741000, China |
| Abstract: | Using land resources quantity change model and land use/cover change index,dynamic changes and driving forces of land use/cover change were discussed in Tianshui,Gansu Province during the resent twenty years.The results showed that slope farmland area declined sharply,terrace area increased rapidly,forestland area and orchard area increased steadily from 1986 to 2004.According to the change of land-use type transfer,the entering speed of terrace was slightly less than the exiting speed,which was in a state ... |
| Keywords: | land use/cover change dynamic changes driving force loess hilly and gully region |
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