张天蛟,刘 刚,王圣伟.基于GIS/RS的不同土地利用类型重金属面源污染比较[J].农业机械学报,2014,45(S1):124-132.
Zhang Tianjiao,Liu Gang,Wang Shengwei.Estimation of Heavy Metal Pollution Loads from Non-point Sources Based on GIS/RS[J].Transactions of the Chinese Society for Agricultural Machinery,2014,45(S1):124-132.
摘要点击次数: 2167
全文下载次数: 1608
基于GIS/RS的不同土地利用类型重金属面源污染比较   [下载全文]
Estimation of Heavy Metal Pollution Loads from Non-point Sources Based on GIS/RS   [Download Pdf][in English]
投稿时间:2014-06-29  
DOI:10.6041/j.issn.1000-1298.2014.S0.021
中文关键词:  重金属 面源污染 污染负荷 地表径流 土壤侵蚀
基金项目:高等学校博士学科点专项科研基金资助项目(20120008110033)
作者单位
张天蛟 中国农业大学 
刘 刚 中国农业大学 
王圣伟 中国农业大学 
中文摘要:针对不同土地利用类型,采样测定土壤重金属质量比背景值;基于DEM数据和遥感影像数据,结合空间信息技术(GIS/RS),利用RUSLE模型和SCS-CN模型分别核算流域内不同土地利用类型的土壤流失量和地表径流量,在验证模型准确性的基础上,估算重金属非点源污染负荷。研究结果表明:研究区域不同土地利用类型的重金属质量比背景值差异较大,重金属Cu和Pb在工矿用地、草地和住宅用地的背景值较高,在有林地的背景值较低。综合估算随2种主要迁移途径输出的重金属面源污染负荷,重金属Cu总污染负荷量大约为651913kg/a,重金属Pb总污染负荷量大约为268004kg/a。不同土地利用类型中,随土壤侵蚀输出的重金属污染负荷,以疏林地和草地的贡献率最大,有林地和水浇地最小;随地表径流输出的重金属污染负荷,以草地和疏林地的贡献率最大,有林地和旱地最小。
Zhang Tianjiao  Liu Gang  Wang Shengwei
China Agricultural University;China Agricultural University;China Agricultural University
Key Words:Heavy metal Non point sources pollution Pollution load Surface runoff Soil erosion
Abstract:Heavy metal pollution caused enormous risks to human health and ecosystem. In this paper, soil heavy metal concentration was determined through sampling from different land use types in the watershed of Binzhou. With DEM data and remote sensing image, the main routes of pollution from non-point sources, i.e., surface runoff and soil erosion of different land use types were estimated based on SCS-CN model and RUSLE model. The precision of the model was validated and analyzed and heavy metal copper (Cu), lead (Pb) pollution loads from non-point sources in the watershed of Yellow River were estimated. The results showed that big differences exited among the soil heavy metal concentration background values from different land use types in the study area: in industrial land, mining land and grassland, the background value of Cu and Pb was high; in woodland, the value was low. The total loads of Cu and Pb was about 651913kg/a and 268004kg/a. The variation ranges of heavy metal pollution loads from soil erosion were large as well: the values in sparse woodland and grassland were the highest; in woodland and irrigable land were the lowest. The value of heavy metal pollution loads from surface runoff also differed greatly: the value in grassland and sparse woodland was much higher than in woodland and dry land. The research could be used for further analyzing the characteristics of the transfer of heavy metals, studying the heavy metal loads from non point source, and adjusting the land use structure reasonably.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

   下载PDF阅读器