EARTH AND ENVIRONMENT

Vol. 40, No.2, Tot No.288 2012

CONTENTS

 

Research Results

Influence of Topography on Epikarst in Karst Mountain Areas—— A Case Study of Chenqi Catchment ………………………………………ZHANG Zhi-cai et al（137）

Element Geochemistry and Fluoride Enrichment Mechanism in High-fluoride Soils of Endemic Fluorosis-affected Areas in Southwest China……………………………………………………………………………………………………………………………………………………………….MENG Wei et al（144）

Vascular Foliar N% and 15N Responses to Atmospheric Nitrogen Deposition in Guiyang…………………………………………………………WANG Yan-li et al（148）

Study on Water Sources of Proper Plant Species in Karst Areas………………………………………………………………………………………DENG Xiao-qi et al（154）

Geochemical Characteristics of Selenium-rich Strata and Weathered Soil from Kaiyang County, Guizhou Province………………………………REN Hai-li et al（161）

OCPs Distribution in Soil and Their Migration Rules in Yantai City, Shandong……………………………………………………………………WANG Cun-long et al（171）

Dynamics and Structure of Phytoplankton Community in the Baihua Reservoir，Guizhou………………………………………………………….XIA Pin-hua et al（179）

Distribution Characteristics and Source Apportionment of Polycyclic Aromatic Hydrocarbons(PAHs) in the Liaohe River Drainage Basin, Northeast China……………………………………………………………………………………………………………………………………………………………ZHANG Yan-lin et al（188）

Diagnosis of the Anomaly Source of Heavy Metals in Soil Around the Minhe-Haishiwan Area, Qinghai…………………………………………TANG Jun-hong et al（195）

Spatial and Temporal Distribution of Mercury and Methylmercury in Sediments of the Dongfeng Reservoir, Guizhou Province………………PAN Lu-sheng et al（201）

Absorption and Transfer of Microelements in Soil by Plants and Their Influence on the Formation of Biogeochemical Anomalies as Exemplified by the Yantianling Cassiterite-Sulfide Deposit, Guangxi…………………………………………………………………………………………………………………………………………CHEN Yang et al（208）

Organic Carbon Storage and Decomposition Rate of Three Subcategories of Calcareous Soil in Karst Area………………………………………YAN Yi-ping et al（219）

Applied Study

Temporal-Spatial Distribution of Pollution and Biodegradability in Precipitation Runoff in Urban Area after the Once-in-a-century Drought……..MO Wen-rui et al（227）

Contamination and Source Identification of Soil Heavy Metals in Different Functional Zones at Baise. Guangxi…………………………………………LIU Fang et al（232）

The Level of As and Ni in Street Dust Fractions of Different Sizes and Its Contributions in Guiyang………………………………………………………LI Xiao-yan et al（238）

Spatio-temporal Variation of Reference Evapotranspiration in Guizhou Province from 1960 to 2009………………………………………………...XU Meng-meng et al（243）

Assessment of Urban Air Quality Based on the Improved Extension Theory Model with Entropy Weight……………………………………………ZHAO Xiao-liang et al（250）

Study on the Expressive Characteristics of Rock Corrosion and Its Effect on Physical and Mechanical Properties of Rock Surface Layer………LIU Cheng-yu et al（255）

Remote Sensing Investigation and Image Characteristics Analysis of Geohazards in the Segment of National Highway 213 from Mao County to Wenchuan County ……………………………………………………………………………………………………………………………………………………………....XUE Dong-jian et al（261）

Current Status of Forest Carbon Sinks in Guizhou Province and Their Increasing Potential……………………………………………………………YIN Xiao-fen et al（266）

Special Subject and Review

Discussion on How to Reduce the Fluorine Contents in Soil with the Ecogeological Method………………………………………………………….FENG Yuan et al（271）

Experiment Research

Determination of Trace Iodine in Vegetable Samples by Pyrohydrolysis for Preparation and Catalytic Spectrophotometry for Measurement…YAO Xiu-hong et al（279）

Effects of Adding Potassium-Bearing Mineral Powder on Nitrogen, Potassium and Potassium Contents of Chicken Manure Compost……………………………………………………………………………………………………………………………………………………………….YANG Xue et al（286）

Experimental Study on the Influence of Phosphorus on the Activity of Heavy Metals in Soils Contaminated by Pb-Zn Smelting Slag………………LI Hai-Ying et al（293）