| 河西走廊实际水资源及其确定的适宜绿洲和农田面积 |
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| 引用本文： | 陈昌毓.河西走廊实际水资源及其确定的适宜绿洲和农田面积[J].干旱区资源与环境,1995,9(3):122-128. |
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| 作者姓名： | 陈昌毓 |
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| 作者单位： | 甘肃省气象局应用气候研究所 |
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| 摘 要： | 根据甘肃省河西地区石羊河、黑河和疏勒河三大内陆水系的祁连山区流域水资源和出山径流量计算，得出河西走廊各县市绿洲的实际年水资源为２８５－７７０ｍｍ，是其年降水量的１．３－１８．５倍。从生态平衡角度出发，确定了各县市绿洲和农田的生态需水量分别为４００－５００ｍｍ和４５０－６５０ｍｍ。据此，计算出基本能保持各县市自然生态平衡的适宜绿洲面积为２．９２－１７．２６×１０￣４ｈａ，全走廊适宜绿洲面积达１１７．２４×１０￣４ｈａ，比现有绿洲面积可扩大６．６１×１０￣４ｈａ；各县市适宜农田面积为１．４３－８．２８×１０￣４ｈａ，全走廊适宜农田面积达５７．９８×１０￣４ｈａ，比现有农田面积可扩大９．３２×１０￣４ｈａ。
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| 关 键 词： | 祁连山，河西走廊，绿洲，径流量，实际水资源，生态需水量 |
ACTUAL QUANTITY OF WATER RESOURCES ANDTHE SUITABLE AREA FOR OASIS AND FARMLAND IN THE HEXI CORRIDOR,GANSU PROVINCE |
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| Chen Changyu.ACTUAL QUANTITY OF WATER RESOURCES ANDTHE SUITABLE AREA FOR OASIS AND FARMLAND IN THE HEXI CORRIDOR,GANSU PROVINCE[J].Journal of Arid Land Resources and Environment,1995,9(3):122-128. |
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| Authors: | Chen Changyu |
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| Abstract: | The pape calculates the water resources from tbeShiyanhe,Heihe,Shulehe Riverbasins in the Hexi Corridor and their original runoffs, the results show that actual annualwater resources in every county and town of the Hexi Corridor are 285-770mm,and 1.3-18.5 times larger than ai1nual precipitation. From the point-view of ecologial balance,ecologial water need in every county and town is 400-500mm and farmlands need 450-650mm. Based on the above-mentioned calculation ,basically keeping natural ecologicalbalance,the proper oasis area should be 2.92-17.26 × 10￣4ha for each County,117.24×10￣4ha for all the Hexi Corriodor which is 6.61 × 10￣4ha larger than now,but the properfarmiand area should be 1.43-8.28× 10￣4ha and each county for 57.98 × 10￣4ha for all theHexi Corridor which is 9.32×10￣4ha larger than now. |
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| Keywords: | Qilian Mountains Hexi Corridor Oasis Runoff Actuai water resources Ecological water need |
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