| 植被指数-地面温度特征空间的生态学内涵及其应用 |
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| 引用本文： | 江东,王乃斌,杨小唤,刘红辉.植被指数-地面温度特征空间的生态学内涵及其应用[J].地理科学进展,2001,20(2):146-152. |
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| 作者姓名： | 江东 王乃斌 杨小唤 刘红辉 |
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| 作者单位： | 中国科学院地理科学与资源研究所资源环境数据中心 |
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| 基金项目： | 中国科学院知识创新工程项目!资助 (KZCX2 - 30 8- 4) |
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| 摘 要： | 植被指数与地面温度是描述土地覆盖特征的重要参数 ,对两种数据的综合分析 ,可以衍生出更丰富、更清晰的地表信息 ,有助于更加准确、有效地认知土地覆盖 /土地利用的时空变化规律。本文探讨了植被指数与地面温度构成的二维向量空间的物理意义与生态学内涵 ,以基于 NOAA AVHRR的时间序列数据为本底 ,分析了不同土地覆盖类型在该特征空间上的时序变化规律 ,并以黄淮海地区主要农作物冬小麦为例 ,研究了植被指数-地面温度指标与干旱、半干旱地区农作物产量之间的响应关系。
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| 关 键 词： | 植被指数 地面温度 NDVI 生态学 农作物 |
| 文章编号： | 1007-6301(2001)02-0146-07 |
| 收稿时间： | 2001-03-01 |
| 修稿时间： | 3/1/2001 12:00:00 AM |
Ecological Connotation and Application of the Vegetation Index-Surface Temperature Feature Space |
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| JIANG Dong,WANG Naibin,YANG Xiaohuan,LIU Honghui.Ecological Connotation and Application of the Vegetation Index-Surface Temperature Feature Space[J].Progress in Geography,2001,20(2):146-152. |
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| Authors: | JIANG Dong WANG Naibin YANG Xiaohuan LIU Honghui |
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| Institution: | Institute of Geographical Sciences and Natural Resources Research,CAS, Beijing 100101 China |
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| Abstract: | Studies on character and variation of land cover/land use become more and more important in geographical and ecological research. Vegetation index and surface temperature are important parameters to describe characters of land covers. More useful information will be created by integrated analyses of these two kinds of data together, which will help us to find out main principles of the temporal and spatial variation of land cover/land use. The paper focused on physical connotation and ecological meaning of the vegetation index-surface temperature feature space, analyzed temporal variation of different type of land covers in this feature space using NOAA AVHRR remote sensing data, and did much site work on relationship between water index and winter wheat yield in the Huang Huaihai campagna. Following views have been set forth and tested based on these data: (1) Large area and long time serials land surface parameters could be retrieved from remote sensed information; (2) Different types of land covers have different characters in the vegetation index-surface temperature feature space; (3) Water index, derived from vegetation index and surface temperature, is turned out to be a good indicate of growing situation of crops. |
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| Keywords: | Vegetation index Surface temperature NDVI Ecology Crop |
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