【摘 要】
：
18 kinds of poly chlorinated biphenyls congeners (PCBs) in soil samples under different agricultural land-use types (LUTs) from Taicang County in southern Jiangsu province were analyzed.Soil samples w
【机 构】
：
State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy o
【出 处】
：
第四届城市、工业、交通和矿山土壤国际会议(The 4th International Conference on Sol
论文部分内容阅读
18 kinds of poly chlorinated biphenyls congeners (PCBs) in soil samples under different agricultural land-use types (LUTs) from Taicang County in southern Jiangsu province were analyzed.Soil samples were collected from paddy fields (PF),commercial vegetable bases (VB),vegetable greenhouses (VS),individual vegetable fields (IVF),and a nature soil was collected from a natural forest without application of agriculture chemical as comparison (CK).The total concentration of PCBs (ΣPCBs) in soils ranged from ng kg-1 to μg kg-1,with the highest concentrations of PCB 13 8 and PCB 180.The ΣPCBs and congeners in agricultural soil was significantly higher than those in CK soil,while the concentration of dioxin-like PCBs congeners(ΣPCBdl) in agriculture soils are similar with those in CK soil.The ΣPCBs and congeners in soil could influence by different LUTs,with a relative concentration of PF>VB>VG>IVF.The distribution character of PCB congeners may reflect the source of pollutants,namely PCBs in paddy soil resulted from irrigation water,PCBs in kailyard soil came from atmosphere deposition and PCBs in green house soil originated from agrochemical utilization.
其他文献
The objective of this study is to construct a new methodology for assessing system the quality of urban soils by physical,chemical and biological interpretation.Land creating history,use and managemen
As one of the most famous ancient cities in China,Jankang (todays Nanjing,Jiangsu province,East of China) have gestated about three hundreds years of Liuchao Dynasty civilization in Ancient China.The
The Ming Dynasty city wall in Nanjing,a famous ancient cultural city located in the East China,was built of earth coated with bricks.It stands 14 meters or more higher,and is 4-9 meters wide across th
The history of Nanjing city can be traced backed to more than 2000 years before.The Arial photos of urban Nanjing in 1949,1984,1995 and 2003 were collected and the urban zone of each temporal stage wa
Contamination of soil with heavy metals (HMs) poses serious risks for biota and human health.Cadmium and Pb are among the most important contaminants of environment.These metals are introduced to soil
The environmental impact resulting from mining activities is serious and ubiquitous all over the world.Heavy metal pollution is a growing environmental problem,which requires,immediate attention.An en
Soil carbon (C) pools are not only important to governing soil properties and nutrient cycling in forest ecosystems,but also play a critical role in global C cycling.Mulch and weed control treatments
During the past decades,fast urbanization development in China broke into large amount of farmland and caused metal contamination in outskirts soil of cities.Crops cultivated on the polluted soil are
The main control software of Safe Product Monitoring and Measuring System of Mine acts as the role of data acquisition and workflow control of the whole mining area.The main control software is develo
Present study was conducted to investigate spoil characteristics under 5-yr old high-density plantations of three native trees (Albizia lebbeck A.procera and Tectona grandis) and one fast growing wood