摘要
运用40年降雨、蒸发、径流的同步资料,计算了西北地区的降水总量为7981.9×10m,地表水资源总量为2164.8×108m3;地下水资源量为1034.6×108m3,扣除重复量后的水资源总量为2304.4×108m3。分析了水资源的地区分布及年内、年际变化规律,评价了西北地区水资源质量,并总结了西北内陆河区径流主要形成于山区,散失于山前平原盆地等水资源六大特点。
By using40years synchronal data of rainfall,evaporation and runoff,the precipita-tion,surface water resources,groundwater resources and total water resources excluding duplica-tions in Northwest China are calculated.They are7981.9×10 8 m 3 ,2164.8×10 8 m 3 ,1034.6×10 8 m 3 and2304.4×10 8 m 3 ,respectively.Based on the analysis of spatio-temporal distribution of water re-sources,the quality of water resources in Northwest China is evaluated,at the same time,6par-ticularities of water resources in Northwest China are,summarized.
出处
《自然资源学报》
CSSCI
CSCD
北大核心
2003年第3期267-273,共7页
Journal of Natural Resources
基金
"九五"国家重点科技攻关项目(96-912-01-01)
水利部科技创新项目(SCX2000-44)资助。
关键词
西北地区
分布规律
水资源
地区分布
water resources
precipitation
surface water
groundwater
Northwest China
in-land river
