自然资源学报 ›› 1992, Vol. 7 ›› Issue (1): 71-79.doi: 10.11849/zrzyxb.1992.01.009

• 论文 • 上一篇    下一篇

地理信息系统支持下的中国农业生产潜力研究

冷疏影   

  1. 中国科学院、国家计划委员会地理研究所
  • 出版日期:1992-03-25 发布日期:1992-03-25

RESEARCH ON THE POTENTIAL AGRICULTURAL I PRODUCTIVITY OF CHINA WITH THE HELP OF GIS

Leng Shuying   

  1. Institute of Geography, Chinese Academy of Sciences
  • Online:1992-03-25 Published:1992-03-25

摘要: 本文在地理信息系统的支持下,分析了全国671个气象台站的30年地面气象资料及地带性或大面积土壤的物化性质及养分状况资料,对影响生产潜力的光、温度、水分、土壤诸要素分别进行了分析、计算,尤其对土壤要素的处理进行了新的尝试,计算了我国的农业生产潜力。

关键词: 农业生产潜力, 地理信息系统, ARC/INFO软件

Abstract: This paper makes a study of the distribution of the potential agricultural productivity of China with the help of geographical information system (GIS).On the basis of the researches of others, the writer chooses appropriate mathematical model and parameters, collects meteorological data of 30 years (1951-1980) and distribution data of physical and chemical characterastics and nutritions conditions of zonal soils (or large-area soils) of China, creates a data base, calculates the potential agricultural productivity of China, and draws a series of maps. The work is with the help of ARC/INFO system, a software of GIS.This paper analyses all the factors influencing potential agricultural productivity. They are sunlight, temperature, water condition and soil condition. The soil condition is analysed by a new method that uses eight factors, namely, soil texture, pH value, nitrogen content, phosphorus content, potassium content, organic matter content, soil erosion status and soil alkalinity status, classifying each of them and giving every class a mark so as to know the soil condition of a region and to calculate its soil availability coefficient.This paper also devides the potential agricultural productivity of China into 9 classes and describes their distribution.

Key words: geographical information system(GIS), potential agricultural productivity,soil availability coefficient.