Comparison of physico-chemical characteristics of sediments from different land use types
Comparison of physico-chemical characteristics of sediments from different land use types
复制标题
DOI：
10.1080/19443994.2014.923199
复制
发表时间：
2015-06
影响因子：
1.1
通讯作者：
Jungsun Hong;M. Felix;Y. Son;L. Kim
中科院分区：
文献类型：
--
作者：
Jungsun Hong;M. Felix;Y. Son;L. Kim
非点源污染物(NPS)是在暴雨期间从各种土地利用中产生并被冲刷掉的污染物。不同的污染物和土壤颗粒可以排放到溪流和湖泊中。本研究选择城市、农业和畜牧区三种不同的土地利用类型，对排放的底泥进行了物理化学性质的测定。结果表明，城市泥沙主要由沙粒等大颗粒组成。此外，农牧区的沉积物主要由粉砂和沙粒组成。与其他土地利用类型相比，城市沉积物中不可生物降解有机物的含量最高，主要由车辆活动产生的碳氢化合物组成。另一方面，由于畜禽养殖废水的排放，畜牧区出现了较高的含氮量。通过对不同土地利用类型沉积物中金属含量的对比分析，结果表明，不同土地利用类型沉积物中的金属含量差异较大，而不同土地利用类型沉积物中的金属含量差异较大。
AbstractNon-point source (NPS) pollutants are generated and washed off from various land uses during storm events. Different pollutants and soil particles can be discharged to stream and lakes. In this study, three different land use types such as urban, agricultural, and livestock areas were selected to determine the physico-chemical characteristics of the discharged sediments. The results showed that sediment generated from urban areas consists of large particle sizes such as sand. Moreover, sediments from agricultural and livestock areas mainly consisted of silt and sand particles. The sediment from urban areas showed the highest content of non-biodegradable organic matters, which was mainly composed of hydrocarbons caused by vehicular activities, compared to other land use types. On the other hand, the livestock area showed high-nitrogen content concentration caused by livestock wastewater. Comparing the metal concentration in sediments coming from different land use types showed that the generated me...