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| 猫跳河流域土地覆被变化及其驱动力定量研究 | |
| 引用本文： | 彭建,许月卿,蔡运龙,王乐.猫跳河流域土地覆被变化及其驱动力定量研究[J].中国岩溶,2008,27(1):68-74. |
| 作者姓名： | 彭建 许月卿 蔡运龙 王乐 |
| 作者单位： | 1. 中央民族大学管理学院,北京,100081 2. 中国农业大学土地资源与管理系,北京,100094 3. 北京大学城市与环境学院,北京,100871 |
| 基金项目： | 国家自然科学基金 , 国家自然科学基金 |
| 摘 要： | 应用RS、GIS以及GPS集成技术，以黔中喀斯特地区的猫跳河流域为对象，研究了这一地区从1973—2002年间土地利用／覆被的变化过程，并利用典型相关分析法研究了形成这种变化的驱动因素。研究表明，从1973—1990年，猫跳河流域耕地、建设用地、有林地、水域以及裸岩地呈增长趋势，而灌木林和灌草地趋于减少，流域生态环境质量下降。进入20世纪90年代后，有林地、灌草地、建设用地、水域持续增加，灌草地总量变化不大，耕地总量和裸岩地减少，流域生态环境质量趋于好转。定量分析表明，1990年以前，驱动建设用地变化的因素是总人口的变化，1990年以后则是农业产值；1990年以前驱动耕地变化的是农业人口的增长，1990年以后则和粮食产量的提高有关。 |
| 关 键 词： | 土地利用/覆被变化 3S技术 驱动力 猫跳河流域 河流域 土地覆被变化 驱动力 定量研究 basin driving forces changes land cover study 粮食产量 增长趋势 耕地变化 农业 人口 因素 用地变化 建设 分析表 环境质量 流域生态 |
| 文章编号： | 1001-4810(2008)01-0068-07 |
| 收稿时间： | 2007/9/18 0:00:00 |
| 修稿时间： | 2007年9月18日 |
Quantitative study on land cover changes and the driving forces in Maotiaohe basin |
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| PENG Jian,XU Yue-qing,CAI Yun-long and WANG Le.Quantitative study on land cover changes and the driving forces in Maotiaohe basin[J].Carsologica Sinica,2008,27(1):68-74. | |
| Authors: | PENG Jian XU Yue-qing CAI Yun-long and WANG Le |
| Institution: | School of Management, Central University of Nationality;Department of Land Resources and Management, China Agricultural University;School of Urban and Environmental Sciences, Peking University;School of Urban and Environmental Sciences, Peking University |
| Abstract: | In recent years, Chinese scholars have focused more on the karst rocky desertification issues in Southwest China. However, the comprehensive research on land use and land cover change in this area, which is closely related to the karst rocky desertification problem, has been paid little attention. By using the integrated technique of RS, GIS and GPS and by employing the methodology of Canonical Correlation Analysis, the authors have quantitatively studied the land use and land cover change processes and also their driving forces over the past 30 years. The results reveal that the area of arable land, construction land, forest land, water area, and rock-exposed land increased from 1973 to 1990 while grassland and shrub land reduced, which means that the eco-environment deteriorated in general. After 1990, forest land, grassland, construction land, and water area had kept increasing while grassland changed a little and arable land and rock-exposed land reduced, which suggests that the coo-environment tends to become better in Maotiaohe basin. Moreover, the quantitative research shows that it was the factor of total population amount that drove the change of construction land in the study area before 1990, but the factor of gross agricultural product after 1990. The increase of agricultural population was mainly responsible for the change of arable land before 1990, but the increase of corn yield after 1990. |
| Keywords: | land use/cover change 3S technique driving force Maotiaohe basin |
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