| 鄂尔多斯盆地植被覆盖动态监测与评价 |
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| 引用本文： | 贾媛,陈贵峰,吴立新.鄂尔多斯盆地植被覆盖动态监测与评价[J].环境科学与管理,2013(1):34-39,72. |
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| 作者姓名： | 贾媛 陈贵峰 吴立新 |
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| 作者单位： | 煤炭科学研究总院北京煤化工研究分院;国家能源煤炭高效利用与节能减排技术装备重点实验室 |
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| 基金项目： | 鄂尔多斯盆地矿产资源勘查开采专项规划项目(121201108804)资助 |
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| 摘 要： | 基于像元分解模型，利用LANDSATNDVI数据，估算了鄂尔多斯盆地2002年7月和2010年7月植被覆盖度，以量化和可视化的形式分析了鄂尔多斯盆地2002年一2010年间植被覆盖度的时空变化特征，探寻了引起植被覆盖度变化的驱动因素。结果表明：2002年一2010年鄂尔多斯盆地植被覆盖度变化明显，平均覆盖度增加了7．35％，改善和明显改善面积增加了35．67％，退化和明显退化面积增加了1．49％。研究区植被覆盖度增加的主要原因是降雨量的增加和一系列生态建设工程的实施；减少的主要原因是恶劣的生态环境和过度的能源开发活动。
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| 关 键 词： | 鄂尔多斯盆地 植被覆盖度 遥感 动态监测 |
Dynamic Monitoring and Assessment of FVC in Ordos Basin |
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| Jia Yuan,Chen Guifeng,Wu Lixin.Dynamic Monitoring and Assessment of FVC in Ordos Basin[J].Environmental Science and Management,2013(1):34-39,72. |
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| Authors: | Jia Yuan Chen Guifeng Wu Lixin |
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| Institution: | 1,2(1.Beijing Research Institute of Coal Chemistry,China Coal Research Institute,Beijing 100013,China; 2.National Energy Technology & Equipment Laboratory of Coal Utilization and Emission Control,Beijing 100013,China) |
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| Abstract: | The fractional vegetation coverage （ FVC ） in Ordos Basin was estimated by using the sub - pixel analysis model based on the LANDSAT NDVI data in July 2002 and 2010. The spatiotemporal change characteristics were analyzed from a quanti- tative and visual perspective to explore the driving factors of this change. The results showed that FVC in Ordos Basin changed ob- viously from 2002 to 2010. The mean coverage increased 7.35%, ameliorative and obviously ameliorative areas jumped 35.67%, while retrograde and obviously retrograde areas advanced 1.49%. The increase of FVC was mainly caused by the surge of precipi- tation and the implementation of a series of ecological construction projects. Moreover, the decrease of FVC was mainly caused by the hostile ecological environment and excessive energy exploration. |
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| Keywords: | Ordos Basin fractional vegetation coverage degree remote sensing dynamic monitoring |
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