1) stream
小河流
1.
The residues and distribution of organochlorine pesticides in sediments from different streams were determined and the influence of soil character on organochlorine pesticides residues in sediments were studied.
2004年春,以南京市西南部4条通入长江的小河流为试区,采集不同断面表层沉积物和水样,以及相应流域内农田土壤样品,对所有样品中有机氯农药的残留及其分布状况进行研究,并讨论了农田土壤有机氯农药残留量和理化性质对河流表层沉积物中有机氯残留量的影响。
2) middle and small river
中小河流
3) middle and small creeks
中小河流
1.
The middle and small creeks in suburban Shanghai were under heavy eutropic condition, with high loadings of nitrogen, phosphorus and organic pollutants.
①上海市郊中小河流有很高的氮磷和有机负荷 ,其表层水凯氏氮、总磷和CODCr指标均数倍于V类水的最大允许值 。
4) medium-and small-sized rivers
中小河流域
5) minimum river length
最小河流长度
1.
The river networks are extracted from DEM at a scale of 1∶100 000 with ten different minimum river lengths varying from 30m to 1 500m.
2中的水文分析模块,根据不同最小河流长度,提取晋江流域河网信息,采用传统的网格法计算提取的不同河网的分维,研究以最小河流长度所提取的不同河网密度与分维的关系,确定晋江流域分维,分析流域地貌的演变。
6) Tarim River Basin
塔里小河流域
补充资料:被污染的河流
被污染的河流
叱自 被污染的河流《自然生物之旅》
说明:补充资料仅用于学习参考,请勿用于其它任何用途。