As well as the noise, traffic, loss of arable land and threat to birds, airports are a major source of pollution and greenhouse gas emissions.
机场不仅导致了噪声、交通堵塞、耕地流失，威胁鸟类，还是主要的污染源和温室气体排放源。
Nutrient export coefficient of land use is an important parameter for constructing model of non-point source pollution.
各种土地利用类型营养盐输出系数是建立非点源污染模型的重要参数。
The wind-drift sand land is both an available land resource and a source of pollutants of environmental pollution.
风沙化土地既是可利用的土地资源，又是环境污染的物质源地。
Nitrogen leaching from a sloping land is one of the important causes of soil degradation and agricultural non-point source pollution.
坡地氮素淋溶是导致坡地土壤质量退化和农业非点源污染的重要原因之一。
Phosphorus loss from agricultural land accelerates eutrophication of lakes and streams, and is an important component of nonpoint-source pollution.
大部分水体富营养化的限制因素是P，土壤P的流失是重要的非点源污染。
The land-based pollutants contribute the main pollution source for the marine environment.
陆源是海洋环境污染的主要来源。
Other nonpoint source pollution comes from agricultural runoff, construction sites, and other land disturbances, as discussed in Chap. 11.
其它非点源污染来自匀在第十一章讨论过的农业上的排水，建筑工地和其它土地施工。
Other nonpoint source pollution comes from agricultural runoff, construction sites, and other land disturbances, as discussed in Chap. 11.
其它非点源污染来自匀在第十一章讨论过的农业上的排水，建筑工地和其它土地施工。
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