| 刘丙军,邵东国,曹卫锋.基于信息熵原理的作物需水空间相似性分析[J].水利学报,2005,36(12):1439-1444 |
| 基于信息熵原理的作物需水空间相似性分析 |
| Spatial similarity analysis of crop water requirement based on information entropy theory |
| |
| DOI： |
| 中文关键词: 信息熵原理 信息传输 参考作物潜在腾发量 |
| 英文关键词: information entropy theory information transfer reference crop potential evaportranspiration |
| 基金项目: |
|
| 摘要点击次数: 2290 |
| 全文下载次数: 301 |
| 中文摘要: |
| 根据区域空间作物需水观测站点具有信息传输的特性，运用信息熵原理研究了它们之间的信息有向传输问题，并运用聚类分析法进一步研究了作物需水相似性区间，初步揭示了作物需水空间分布的结构特征。上述方法运用于湖南省83个观测站作物需水空间分布规律研究中，取得了满意的结果。 |
| 英文摘要: |
| Based on the concept of transfer index of directional information in entropy theory, the clustering analysis is applied to study the monthly average crop water requirement of reference crop measured at different stations to find out the spatial similarity of potential evapotranspiration. It is found that the information transfer among measuring stations exists and the transfer indexes for different stations are not the same. Thus, the correlation degree among stations can be determined according to the transfer index and the spatial divisions of similar water requirement are revealed. This method is applied to analyze the data measured at 83 stations in Hunan Province. Satisfactory result is obtained. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |