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多层次格网模型的近邻指数聚类生态区划算法与实验——以新疆北部地区区划为例/A Nearest Neighbor Index Clustering Algorithm for Ecological Regionalization Based on Multi-layer Grid Model[J]
Authors
OU Yang
QIN Biao
+8 more
YUAN Yecheng
ZHOU Chenghu
中国科学院地理科学与资源研究所,资源与环境信息系统国家重点实验室,北京,100101
中国科学院研究生院,北京,100049
周成虎
欧阳
袁烨城
覃彪
Publication date
1 January 2011
Publisher
Abstract
在综合考虑气候、植被、地貌等凶素的基础上,提出一种基于多层次格网模型的最近邻指数-模糊聚类生态区域划分算法(Nearest Neighbor Index Fuzzy clustering,NNI-FIC).该算法采用"自下而上"的方式,首先,利用离散格网单元之间的严格相似性形成区划的核心分区;然后,通过最近邻指数统计分析细碎分区的空间格局及其面积覆盖率,再以模糊聚类方法将相似度最大的细碎区聚合归并,即可得到相应的生态区划方案.数值实验证明了该算法可以很好地体现区域的分异特征,并且具有较高的效率
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Institutional Repository of Xinjiang Institute of Ecology and Geography, CAS
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Last time updated on 29/11/2016