%0 Journal Article
%T Application of landscape fragmentation in winter wheat area sampling design<br>景观破碎度在冬小麦面积抽样设计中的应用研究
%A HU Tan''gao
%A ZHANG Jinshui
%A PAN Yaozhong
%A CHEN Lianqun
%A <br>胡潭高
%A 张锦水
%A 潘耀忠
%A 陈联裙
%J 遥感学报
%D 2010
%I 
%X Fragmentation is often used to describe spatial structure of earth landscape ecology. This paper introduces the fragmentation in remote sensing sampling survey, and focuses on the application of area-scale and fragmentation in the stratified sampling. Experimental results show that: (1) in the regions with broken planting structure, correlation coefficients of area-scale and fragmentation are both above 0.7. Therefore, they both can be used as auxiliary variables for stratification design in such regions. With the increasing of sampling grids, correlation coefficient of area-scale increases, while correlation coefficient of fragmentation decreases. When sampling grid size is smaller than 100m×100m, fragmentation is better than area-scale. (2) in the regions with regular planting structure, area-scale is always better than fragmentation. Fragmentation is more suitable for the application of winter wheat area sample survey in regions where planting structure is broken, sampling units is small.
%K winter wheat area
%K auxiliary variable
%K area-scale
%K fragmentation
%K correlation coefficient<br>冬小麦面积
%K 分层标志
%K 面积规模
%K 破碎度
%K 相关系数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=A41A70F4AB56AB1B&jid=F926358B31AC94511E4382C083F7683C&aid=B14092D32AFA592A3F25EBEA769FC9EA&yid=140ECF96957D60B2&vid=F3583C8E78166B9E&iid=B31275AF3241DB2D&sid=FB318F788ECEF1B2&eid=D542ADE6529F4059&journal_id=1007-4619&journal_name=遥感学报&referenced_num=0&reference_num=33