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选取水稻占耕地面积比、地形地貌、土壤类型、土地利用类型、人均社会产值五个因子,对上海的水稻生产水平进行综合分层。根据各因子对水稻总产的影响程度,分别规定优先等级,采用层次分析法,确定各因子的权重系数,最后应用 GIS 工具进行综合分层。经检验取得了较好的分层效果。
Five factors,such as terrain,the type of land used,soil type,the ratio of rice area to land area and social output of person are selected,to evaluate synthetically the yield level of rice in Shanghai.In order to reflect scientifically its effect degree to total rice yield,we adopted the method of stratification analysis to determine the weight coefficient of every fac- tor.And last,we use the GIS tools to conduct synthetical stratification of the rice yield esti- mation.
国家八五攻关项目经费资助。
杨星卫 ,王红 ,周红妹 , 陆贤 . GIS支持下的上海水稻遥感估产分层研究[J]. 遥感技术与应用, 1993, 8(2): 41-46.
http://www.rsta.ac.cn/CN/Y1993/V8/I2/41
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