| 兰州市南北两山植被覆盖度动态变化遥感监测 |
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| 引用本文： | 李娟,龚纯伟.兰州市南北两山植被覆盖度动态变化遥感监测[J].测绘科学,2011,36(2):175-177. |
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| 作者姓名： | 李娟 龚纯伟 |
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| 作者单位： | 甘肃省基础地理信息中心;昆明理工大学环境科学与工程学院; |
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| 摘 要： | 本文基于植被指数(NDVI)和植被覆盖度像元分解模型,建立了兰州市南北两山植被覆盖度遥感定量模型,在此基础上研究了兰州市南北两山1991年和2006年两个时期的植被覆盖度动态变化,结果表明:1991-2006年兰州市南北两山绿化工程区植被覆盖度总体呈上升趋势,低植被覆盖度面积减小,中高和高植被覆盖度面积增加,其中七里河工程区植被覆盖度变化最为明显,绿化效果较好,安宁工程区绿化效果相对较差,结果可为兰州市南北两山绿化工程提供科学依据。
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| 关 键 词： | 植被指数(NDVI) 兰州南北两山 植被覆盖度 遥感 |
RS monitoring on the dynamic change of vegetation coverage in Lanzhou South-North hills |
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| LI Juan,GONG Chun-wei.RS monitoring on the dynamic change of vegetation coverage in Lanzhou South-North hills[J].Science of Surveying and Mapping,2011,36(2):175-177. |
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| Authors: | LI Juan GONG Chun-wei |
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| Institution: | ②(①Gansu Provincial Center of Fundamental Geographic Information,Lanzhou 730000,China;②College of Environmental Science and Engineering in Kunming University of Science and Technology,Kunming 650093,China) |
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| Abstract: | Based on NDVI and the pixel decomposed model of vegetation coverage,the paper set up remote sensing quantitative model of vegetation coverage of Lanzhou South-North hills.Based on the model,it studied the dynamic changes of vegetation coverage of Lanzhou South-North hills in 1991 and 2006.The results showed that from 1991 to 2006,the overall trend of vegetation coverage in Lanzhou South-North hills was upward.The area of low vegetation coverage reduced and middle-high and high vegetation coverage increased,... |
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| Keywords: | Normalization Difference Vegetation Index(NDVI) Lanzhou South-North hills vegetation coverage remote sensing |
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