EARTH AND ENVIRONMENT

Vol. 42, No.4, Tot No.300 2014

　　

CONTENTS

Research Results

The Impact of Human Activities on the Karst Groundwater Hydrodynamic Environment in Fengfeng Coal Mining Area ……………………………………………………………………………………………………………………HAO Chun-ming et al（465）

Temporal and Spatial Distributions of Nitrogen Contamination in Groundwater along the Typical Cross-sections of the North China Plain ………………………………………………………………………………………… WAN Chang-yuan et al（472）

Mercury Concentrations and Characterization of δ13C and δ15N in Some Fish Species from Lake Dianchi ………………………………………………………………………………………………………………… WEI Zhong-qing et al（480）

The Spatial Distribution of Soil Pesticide Contents in a Typical Pollution Area……………… GAI Li-ya et al（484）

Residual level and vertical distribution of DDTs and HCHs in a typical pesticide industrial site in Southwest，China ……………………………………………………………………………………………………………………ZHU Xiao-long et al（489）

Long-term Variation Trend of HCHs in the Sediment Core of Chongming Island Wetland……… ZHU Xiao-hua et al（496）

Migration Parameter Optimization of 237Np in Saturated Red Clay from Zhejiang Province……YU Feng-mei et al（502）

Pollution Characteristics of Heavy Metals in Soils in Typical Contaminated Areas，Guizhou Province ……………………………………………………………………………………………………………………ZHU Heng-liang et al（505）

The Distribution and Transference Characteristics of Iron and Manganesein Lake Baiyangdian ……………………………………………………………………………………………………………………LIANG Shu-xuan et al（513）

Correlation Intensity of Vegetation Coverage and Topographic Factors in Chishui Watershed Based on RS and GIS ……………………………………………………………………………………………………………………………CAI Hong et al（518）

Applied Study

The Features and Potential Ecological Risk Assessment of Heavy Metals in Surrounding Soils of Different Types of Enterprises in Zhongshan Municipality ………………………………………………………………………LI Si-qing et al（525）

Source Identification and Hazardous Risk Delineation of Heavy Metals in Surface Sediments from Lake Qionghai，Sichuan Province …………………………………………………………………………………………………………SONG Xue-bing et al（532）

Hydrological and Hydrochemical Characteristics of the Observation Wells at Puding Hydropower Station and Their Potential Risk Assessment ………………………………………………………………………………………………… CHEN Bo（540）

Distribution of Heavy Metals in the Rhizospheric Soil￣Capsicum System and Risk Assessment ………………………………………………………………………………………………………………………WANG Da-zhou et al（546）

Evaluation of Balanced Development of Urban Economy and Environment Based on TOPSIS—A Case Study in Shanghai City ……………………………………………………………………………………………………………………… LI Wei-xiao et al（550）

Expeviment Research

An Experimental Study on Species and Their Relationships of F and Al from Tea Farm soils in Guizhou Province，China …………………………………………………………………………………………………………………… LIU Xiao-jing et al（555）

Kinetic and Thermodynamic Research on Cu2+ Adsorption by Modified Wheat Straw……………  GONG Zhi-lian et al（561）

Special Subject and Review

Progress in Research on Zn Isotopes in Plants………………………………………………………………CHEN Miao et al（567）

An Application of HPLC-ICP-MS to Analyzing Selenium Species in Plants………………………………MI Xiu-bo et al（574）