ANALYSIS ON AGRICULTURAL PRODUCTION CONDITIONS AND POTENTIALITY IN THE QAIDAM BASIN
柴达木盆地农业生产条件及潜力分析

This paper analyses the agricultural natural conditions of the Qaidam Basin,an inland basin with high altitude in arid lands of China,calculates the potential productivities of photosynthesis,of the light and temperature,of the light,temperature and water (climate),of the light,temperature and water regulated after irrigation as well as changes of crop yield from 1990 to 1996,and puts forward the principal measures for improving agricultural potential productivities of the Basin.The specific measures include: 1)to develop water saving irrigation,construct irrigation systems by combining diversion with drawing and irrigation with drainage; 2)to establish evaporation decrease and temperature increase cropping systems by means of reducing evaporation in the inter planting field with straw and plastic canopy; 3)to breed and popularize fine crop varieties; and 4)to strengthen construction of shelterbelt systems,improve eco enviroment and raise actual potential productivity.