|
|||||
|
|
| 基于信息熵原理的作物需水空间相似性分析 | |
| 引用本文： | 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. |
| 作者姓名： | 刘丙军 邵东国 曹卫锋 |
| 作者单位： | 1. 水资源与水电工程科学国家重点实验室(武汉大学),湖北,武汉,430072;中山大学,水资源与环境系,广东,广州,510275 2. 水资源与水电工程科学国家重点实验室(武汉大学),湖北,武汉,430072 3. 上海市松江区水务局,上海,201600 |
| 基金项目： | 国家重点973项目(2003CB415206) |
| 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。 |
| 关 键 词： | 信息熵原理 信息传输 参考作物潜在腾发量 |
| 文章编号： | 0559-9350(2005)12-1439-06 |
| 收稿时间： | 01 17 2005 12:00AM |
| 修稿时间： | 2005年1月17日 |
Spatial similarity analysis of crop water requirement based on information entropy theory |
|
| LIU Bing-jun,SHAO Dong-guo,CAO Wei-feng.Spatial similarity analysis of crop water requirement based on information entropy theory[J].Journal of Hydraulic Engineering,2005,36(12):1439-1444. | |
| Authors: | LIU Bing-jun SHAO Dong-guo CAO Wei-feng |
| Affiliation: | 1. Wuhan University, Wuhan 430072, China; 2. Sun Yat-sen University, Guangzhou 510275, China; 3. Songjiang District Water Affairs Department of Shanghai, Shanghai 201600, China |
| Abstract: | 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. |
| Keywords: | information entropy theory information transfer reference crop potential evaportranspiration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《水利学报》浏览原始摘要信息 | |
| 点击此处可从《水利学报》下载全文 | |