%0 Journal Article
%T Geographical distribution of China''s grain yield risk area<br>中国粮食产量不同风险类型的地理分布
%A DENG Guo
%A WANG Ang-sheng
%A ZHOU Yu-shu
%A LI Shi-kui
%A <br>邓国
%A 李世奎
%J 自然资源学报
%D 2002
%I 
%X Based on risk analysis theory,we make use of ISODATA method to divide China into different risk areas at the prefectural and provincial levels with risk-factor division index and synthetic division index respectively.The results show that the difference in risk levels in China relates closely to local disaster induced environment,disaster factors and productivity.The divi-sion results could serve as reference on resources utility,grain yield allocation and risk decision.
%K risk index
%K ISODATA
%K risk division<br>风险指标
%K 迭代自组织动态聚类
%K 风险分区
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=4DCB9A3AF3395AF0101DE5302EF3C300&aid=FB2A9228FA9D0AE8&yid=C3ACC247184A22C1&vid=BCA2697F357F2001&iid=0B39A22176CE99FB&sid=AA27B676BFCAA4BE&eid=1B64850025D0BBBE&journal_id=1000-3037&journal_name=自然资源学报&referenced_num=10&reference_num=14