Qilian Mountain is famous mountain system in China and has a great many of glaciers,
from which runoff is very important to the piedmont corridor area of the mountain.In addition,
there is a water vapor transportation belt in this region, which brings abundant cloud and air
water resources.Thus, cloud and air water resource exploiture project in the region is very
meaningful and beneficial.
In order to assess the synthetic benefit of cloud and air water resource exploitation,
reasonable index system including 25 indexes was constructed in this paper.It involved social,
economic and ecological effects.Then, choosing 11 indexes and using AHP ( analytic hierarchy
process) method, each index weight was evaluated and synthetic assessment model was established
clearly.
In this paper, on the basis of Kang’s result about the impacts of precipitation enhancement
on runoff flow from the mountain in the northwest arid region, the water resource and socioeconomic
conditions after cloud and air water resource exploiation over the Qilian Mountain were
predicted rationally.Finally, the synthetic benefit of cloud and air water resource exploitation over
the Qilian Mountains was assessed integrally.The results showed that the social, economic and
ecological benefit all would be improved remarkably after the cloud and air water resource
exploitation over the Qilian Mountain.When precipitation increased by 10%, the synthetic benefit
would be improved by 5.3%, and when precipitation increased by 20%, the synthetic benefit
would be improved by 12.5%.
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