| Estimating of climatic factors and analyzing of agro-climatic resources by GIS in Ningxia |
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| DOI：10.7606/j.issn.1000-7601.2008.04.45 |
| Key Words: climatic factors agro-climate resources GIS Ningxia |
| Author Name | Affiliation | | SU Zhansheng | Ningxia Key Laboratory for Meteorological Disaster Prevention and Reducing,Yinchuan 750002,China；Ningxia Meteorological Observatory,Yinchuan,75002,China | | CHEN Xiaoguang | Ningxia Key Laboratory for Meteorological Disaster Prevention and Reducing,Yinchuan 750002,China | | HUANG Feng | Ningxia Key Laboratory for Meteorological Disaster Prevention and Reducing,Yinchuan 750002,China | | YANG Shuping | Ningxia Meteorological Observatory,Yinchuan,75002,China |
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| Abstract: |
| 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 1108．8 mm to 1991．7 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. |
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