1) main stream of the Sanggan River
桑干河干流
1.
According to the practical hydrographic characteristics of the main stream of the Sanggan River,a model of the ammonia nitrogen,COD and volatile hydroxybenzene environmental capacity of the Sanggan River was established,and with which the different flow frequencies were calculated and analyzed.
依据水环境功能区划分原则及技术方法对山西桑干河干流地面水域的功能区进行了划分。
2) Sanggan River Watershed
桑干河流域
1.
Based on the data from the field,the patterns of dominant populations of wetland vegetation in Sanggan River watershed,Shanxi were studied by using v/m(dispersal index) ratio t-test,clump intensity,mean crowding,patchiness index,Green s index and the intensity index k of negative binomial distribution and the cause involved with the pattern was analyzed.
根据野外调查的样地资料,应用方差/均值比(扩散系数)的t检验、聚集指数、平均拥挤度、聚块性指数、Green指数和负二项分布的聚集强度等方法,研究了山西桑干河流域湿地植被优势种群的分布格局并分析格局形成的原因,并用相关分析比较了6个指数间的关系,结果表明:这些植物的分布格局皆属于聚集分布,但它们的聚集强度有差异。
3) valley along the Sanggan and the Yanghe rivers
桑干河洋河流域
4) Guanting reservoir drainage basin
洋河、桑干河流域
5) Sanggan River
桑干河
1.
Water resources management and sustainable utilization of Sanggan River of Shanxi Province;
山西桑干河水资源管理及可持续利用研究
2.
Using Remote Sense and GIS Techniques to Assess Soil Erosion in Sanggan River Watershed;
基于遥感和GIS的桑干河流域土壤侵蚀评价
3.
Species diversity of wetland vegetation in Sanggan River watershed,Shanxi;
山西桑干河流域湿地植被物种多样性研究
6) Haihe River mainstream
海河干流
1.
Deep water sampling device was used to collect surface sediments from Haihe River mainstream,and total content of phosphorus,iron and organic matter of surface river sediments with different sizes at eight cross-sections were examined.
采用深水表层沉积物采样器采集海河干流8个断面的表层沉积物,测定不同粒径表层沉积物的总磷(TP)、总铁(TFe)和有机质(OM)含量,并采用多元线性回归分析方法对TP与TFe和OM含量进行相关性分析。
2.
Pollutants accumulation from Haihe river mainstream and adjacent sea built heavy pressure up to region eco-environment.
海河流域水资源匮乏,近年来水环境质量持续恶化,海河干流及邻近海域污染物的累积给区域生态环境带来很大压力。
补充资料：桑干
1.河名。今永定河之上游。相传每年桑椹成熟时河水干涸，故名。 2.古县名。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条