遥感植被分类方法的概述及发展(国外英文资料).docVIP

遥感植被分类方法的概述及发展(国外英文资料) Article number: 1006-4354 (2002) 03-0020-04 Overview and development of remote sensing vegetation classification methods Li Xingmin 1, Zheng Youfei 1, Liu Anlin 2 (1. 、 Nanjing Institute of meteorology, Jiangsu, Nanjing 210044; 2.. Shaanxi Agricultural Remote Sensing Information Center, Shaanxi, Xian 710015) Abstract: the development of satellite remote sensing technology has provided a new method for wide range crop identification and classification. Since 90s, foreign countries have mainly made Using remote sensing and combining plant surface temperature, topography and other non remote sensing elements to identify and classify surface vegetation, China has been in the country since 80s By applying the method of dynamic clustering and empirical orthogonal functions, such as image texture, vegetation index change, vegetation index, and so on, the classification of large scale vegetation was carried out Yes, it is. In recent years, in order to improve the accuracy of vegetation classification, the spatial resolution of the data has been improved and the comprehensive application of microwave remote sensing has been applied 3 S has made great efforts in technology and other fields. Keywords: remote sensing; vegetation; classification CLC number: P407, document identification code: A In the past 20 years, the development and application of satellite remote sensing technology The identification of a wide range of crops provides a new scientific means. it By macro, fast, objective and so on, it has been accepted by all levels of government and decision-making department Door importance. Chinas earliest use of Landsat data from the early 80s The ground crops are identified, and good results are obtained. But as a result of Landsat repeats are long and land satellite data are expensive, It is difficult to be popularized and applied under the current economic and technological conditions in china. With the land Compared to the earth satellite, the we