China’s Potential of Grain Production Due to Changes in Agricultural Land Utilization in Recent Years

查看全文 作　　者：XIN Liangjie LI Xiubin ZHU Huiyi TAN [1]Minghong

机构地区：[1]Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China

出　　处：《Chinese Geographical Science》索引2009年第19卷第2期,共7页

基　　金：Under the auspices of National Key Technologies R&D Program of China (No. 2006BAB15B02);National Natural Science Foundation of China (No. 40671009) 摘　　要：The changes in utilization of agricultural land have gradually grown into one of the major factors impacting grain output in China. This study explores the various components of agricultural production in China from the land utilization perspective, involving changes in grain production per unit area, multi-cropping index, and adjustment of agricultural structure. Compared with the record values, different research methodologies are used to analyze the po- tential of above three components. The results indicate that grain production potential of 65.68×109kg was unexploited in 2006, in which 45.8×109kg came from the restructuring in agriculture. So we can infer that the reduction of grain production in China could be primarily attributed to agricultural restructuring in recent years. So the productive poten- tial can be fully restored by increasing agricultural investment, or recovering agricultural structure in favorable condi- tions. So we can say that China’s current condition of food security is good. 关键词：粮食生产潜力农业生产中国土地使用农业结构调整组成部分粮食产量农用土地

相关文献

参考文献（24）
引证文献（19）
耦合文献（826）

参考文献(24)

引证文献(19)

耦合文献(826)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

China’s Potential of Grain Production Due to Changes in Agricultural Land Utilization in Recent Years

参考文献(24)

引证文献(19)

耦合文献(826)

用户提示