By thinking of the geo-environment problems caused by the decrease of water level, inthe future the extraction rate of groundwater source plants should be reduced by at least30% of the rate in 2000.
考虑到不至于由于地下水位下降而引发各种环境地质问题，北京主要地下水供水源地今后应至少降低2000 年开采量的30%进行地下水开采。
The decrease of precipitation and surface water and over-exploitation are the main reasons that result in groundwater level decline.
降水和地表径流的减少以及地下水的严重超采是引起地下水位下降的主要原因。
The falling of bog water level caused by raining decrease would strengthen the CH4 oxidation by bog soil in Zoige Plateau, thus the CH4emissions from bog decreased.
降水减少导致的沼泽水位下降将加强若尔盖高原沼泽土壤氧化ch4从而减少沼泽ch 4排放。
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