storm over the grassland 中文意思是什麼
storm over the grassland
解釋
草原風暴-
An intense storm cloud forms over south africa ' s highveld. the highveld contains the greatest span of remaining grassland in southern africa
一股強暴風雲在南非高原的上空形成。在這片高原上的，是南非現存最廣闊的草原。 -
With the development of agriculture and industry and the enlargement of man ' s activity, the demand of water supply has increased in the region over the past decades. in the backward areas along the heihe river, there are a lot of ecological environmental problems such as lake dried up, sustainable, lowering of ground water level, water pollution, soil salinization and desertification, degradation of natural oasis and grassland, as well as sand storm
近幾十年來，由於工農業的發展和人類活動的擴大，黑河流域中下游用水量的增加，黑河下游出現了嚴重的缺水現象，由此導致了一系列諸如河流湖泊乾枯、地下水水位持續下降、水質惡化、植被退化、土壤鹽堿化、土地風蝕化等環境問題。包氣帶水分、鹽份的分佈和運移對地表植被生長有著重要的影響。
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