对水质而言，土地侵蚀确实是一个主要的危害，堵塞河流和湖泊及倾撒肥料和杀虫剂进入供水系统。
Erosion can do major damage to water quality, silting streams and lakes and dumping fertilizers and pesticides into the water supply.
本文根据河南的河流水系分布、水资源的状况及特点，分析了水资源开发利用的现状。
According to the distribution of river system, water resources' conditions and characteristics of Henan, the development and utilization situation of water resources is analyzed in this paper.
上部地形地貌、浅层水及河流水系的综合影象特征反映了奥灰水的相关信息。
Comprehensive image features of topography, shallow groundwater and river drainage reflected the correlative information.
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