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| 基于RS和GIS技术的贵州省植被生态环境监测分析 |
| The Analysisof Vegetation EntironmentM onitoring in Chinese Guizhou Based on RS and GIS Technology |
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| DOI： |
| 中文关键词: 遥感 地理信息系统 植被覆盖 生态环境监测 贵州 |
| 英文关键词: Remote sensing GIS Vegetation cover Entironmentmonitoring Guizhou |
| 基金项目:贵州省气象局气象科技开放课题基金资助项目 |
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| 中文摘要: |
| 为阐明贵州省植被生态环境变化的整体状况, 基于RS和GIS技术, 应用美国国家航空航天局最新的全球植被指数变化研究数据 (GIMMS), 通过计算月归一化植被指数 (NDV I) 变化率, 并对研究区一元线性回归模拟, 分析了贵州省1982 年 — 2003 年的地表植被覆盖。 结果表明 :22 年来, 研究区植被覆盖呈增加趋势, 表明贵州省植被生态环境向好的方向发展; 贵州省平均植被覆盖在春季和秋季呈上升趋势, 夏季和冬季呈下降趋势 , 其中春季对植被覆盖总变化量的贡献最大 ;植被覆盖程度增减因区域不同 |
| 英文摘要: |
| The Normalized Difference Vegetation Index (NDV I) were used in GlobalInventory Modeling and Mapping Studies(GIMMS) ofNASA, monthly from 1982to 2003 based on RS&GIStechnology,toillustrate the vegetation coverofearth surfacein Guizhou. ThechangeratesofNDV Iwerecalculated bythelinearregression to analysisthespatialdistribution and dynamicchangeofvegetation coverage. The main conclusionsindicated thatNDV Ivaluesseemedto beturning up inthearea duringrecent22 years(1982 — 2003). Thatsuggested the vegetation coverwasimprovedin Guizhou. The NDV Iincreased in the spring and autumn and decreased in the summerand winter. Thespringmadethelargestvegetation contributionin allseasons. Vegetation coverwas differentfrom the area and the variation was positive in the centralarea but negative around the edges of Guizhou. |
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