Estimating of climatic factors and analyzing of agro-climatic resources by GIS in Ningxia
Study was made on estimating method of climatic factors(250 m×250 m) of Ningxia by GIS, and based on this, agro-climatic resources of Ningxia was analyzed. The results show that: there are rich solar radiation resources, and the annual solar radiation is from 4 955 MJ/m2 to 6 155 MJ/m2 in Ningxia, which is one of the regions with richest solar radiation resources. The annual mean temperature is from 5.3℃ to 9.9℃, which is distributed as higher in north and lower in south. Spatial distribution of accumulated temperature is significantly different. Annual precipitation is from 159.7 mm to 594.0 mm, with more in south and less in north. Evaporation is from 1 108.8 mm to 1 991.7 mm, with more in west and center and less in southeast. Annual aridity is from 0.4 to 4. 7, with more than 2.0 in north-central Ningxia. The arid climate character is very obvious.
国家科技期刊平台
NSTL
万方数据
维普
