自然资源学报

自然资源学报 ›› 2007, Vol. 22 ›› Issue (5): 747-755.doi: 10.11849/zrzyxb.2007.05.009

• 资源安全 • 上一篇    下一篇

从栅格到县域:中国粮食生产的资源潜力区域差异分析

封志明1, 杨艳昭1, 张晶1,2, 王秀芬3   

  1. 1. 中国科学院地理科学与资源研究所, 北京 100101;
    2. 德州学院, 德州 253023;
    3. 中国农业科学院农业环境与可持续发展研究所, 北京 100081
  • 收稿日期:2007-01-31 修回日期:2007-05-25 出版日期:2007-10-25 发布日期:2007-10-25
  • 作者简介:封志明(1963-),男,河北平山人,研究员,主要从事国土资源优化配置与区域可持续发展研究工作, 旁及资源科学理论探讨。E-mail:fengzm@igsnrr.ac.cn
  • 基金资助:

    中国科学院知识创新重要方向项目(kzcx3-sw-333).

A GIS Based Study on the Grain Productivity and Potential Yield Increase at Multi-levels in China

FENG Zhi-ming1, YANG Yan-zhao1, ZHANG Jing1,2, WANG Xiu-fen3   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. Dezhou University, Dezhou 253023, China;
    3. Institute of Environment and Sustainable Development in Agriculture, CAAS, Beijing 100081, China
  • Received:2007-01-31 Revised:2007-05-25 Online:2007-10-25 Published:2007-10-25

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被引次数

101 | 24

摘要： 粮食安全是国家安全的重要组成部分。论文通过构建生产潜力模型,利用GIS技术,定量计算了1km×1km栅格和县域尺度中国粮食生产潜力;通过对粮食生产的资源禀赋状况逐级评判,揭示了中国不同地区粮食生产的资源潜力。结果表明:中国平均光温、水资源和土地资源分别具备1倍多、1倍以及近1/3的增长空间。中国县域粮食资源潜力差异显著,内蒙古及长城沿线以及黄土高原地区为县域粮食资源可开发空间较大的区域,西北、黄淮海、四川盆地区为可开发程度较低的地区。

关键词: 生产潜力, 资源潜力, 栅格, 县域

Abstract: Based on the situation of food security and sustainable agricultural development,this research attempts to study systematically issues of potential grain productivity and potential yield increase in China by applying theoretical models (Agro-ecological Zone,AEZ) at 1km×1km grid and county levels with geographic information system(GIS) technologies.The results shows that in general the potential grain productivity tends to be higher in Southeast than in Northwest China,and the multi-years average potential photosynthesis productivity,phototemperature productivity,precipitation productivity and land productivity is 71.73t/hm2·a,19.71t/hm2·a,15.86t/hm2·a and 11.81t/hm2·a at 1km×1km grid level in China;the potential productivity at county level shows the same distribution model as that at grid level,and the average potential phototemperature productivity,precipitation productivity,water resources productivity and land resources productivity is 16.82t/hm2·a,13.74t/hm2·a,15.27t/hm2·a and 11.07t/hm2·a;the index of potential yield increase of phototemperature,water resources and land resources is 0.55,0.50 and 0.32,which shows that the present grain productivity has more than 1 double,1 double and 1/3 increase space according to the phototemperature potential productivity,water resources potential productivity and land resource potential productivity;and the development of grain production varies significantly among the counties studied,and the development of grain production in Inner Mongolia and Losses Plateau has a big space,while in Norhtwest China,Huang-Huai-Hai Plain and Sichuan Basin the increase of grain production has a small space.

Key words: potential productivity, potential yield increase, grid, county

中图分类号: 

  • F062.1