地理科学进展

地理科学进展 ›› 2003, Vol. 22 ›› Issue (4): 400-408.doi: 10.11820/dlkxjz.2003.04.008

• 论文 • 上一篇    下一篇

基于GIS的甘肃省农业生产潜力研究

郑海霞, 封志明, 游松财   

  1. 中国科学院地理科学与资源研究所,北京100101
  • 收稿日期:2003-05-01 修回日期:2003-06-01 出版日期:2003-07-24 发布日期:2003-07-24
  • 作者简介:郑海霞(1975-),女,中国科学院地理科学与资源研究所博士生,主要研究方向为资源持续利用、区域综合开发。
  • 基金资助:

    国家自然科学基金资助项目(70173023);;中国科学院地理科学与资源研究所知识创新领域前沿项目(CXIOG-A00-04)

A Study on Potential Land Productivity Based on GIS Technology in GANSU Province

ZHENG Haixia, FENG Zhiming, YOU Songcai   

  1. Institute of Geographical Sciences and Natural Resources Research, CAS, Beijing 100101
  • Received:2003-05-01 Revised:2003-06-01 Online:2003-07-24 Published:2003-07-24

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被引次数

171 | 40

摘要： 在气象数据库、属性数据库和GIS支持下,采用机制法对作物生产潜力模型进行了光、温、水、土逐级订正,得到了甘肃省的光合、光温、降水、水资源及土地的生产潜力,其结果很好的反映了甘肃省农业生产和农业资源分布的空间格局,各级订正的有效系数进一步揭示了各种资源因子对农业生产的限制程度。

关键词: 甘肃省, 农业生产潜力, 资源限制因子, 资源因子系数

Abstract: Based on previous researches on potential agricultural productivity and supported by geographical information system (GIS) technology and agricultural databases which include spatial databases and attribute databases, potential land productivity in Gansu province was studied By using the mechanism methodology, the model of potential agriculture productivity was established Effective coefficients for factors such as radiation, temperature, water and land were decided; then potential photosynthesis productivity, potential temperature productivity, potential precipitation productivity, potential agricultural water resources productivity and potential land productivity in Gansu province were calculated The results show the spatial distribution inconsistency between agricultural production and agricultural resources in Gansu province, and this reveals the different limitation of radiation, temperature, water and land effective coefficient to agricultural production.

Key words: constraint factor efficient, constraint factors, Gansu Province, potential agricultural productivity

中图分类号: 

  • P208