Research Results 

Physicochemical Characteristics of the Overlying Water and Spatial­temporal Distribution of Carbon, Nitrogen and Silicon in Lake Hongfeng, Guizhou Province, China

WANG Liying et al (383)

River Water Geochemistry of Hanjiang River, Implications for Silicate Weathering and Sulfuric Acid Participation

YU Chong et al (390)

Microbial Diversity of Keluke­Tuosu Lake Wetland Reserve in Qinghai­Tibet Plateau

LONG Qifu et al (399)

Evaluation of Hydrochemical Characteristics of Regional Groundwater Systems in Northern China under the Conditions of Large­scale Exploitation

LIU Jun et al (408)

Carbon Sink or Source Effect of Ligustrum Plantation Ecosystem in Mine Reclamation Area

ZHAO Kui et al (415)

Changes of Distribution of Arid and Humid Areas in China

LI Zongmei et al (420)

Analysis of Vegetation Eco­Environment Quality Change Features in Guizhou Province from 1990 to 2015

XU Youxia et al (434)

Applied Study 

Air Quality Characteristic and Its Influencing Factor Analysis for Cities in Guanzhong Region, China

ZHANG Jiayin et al (441)

Characterization and Health Risk Assessment of PAHs in Vegetables from Nanjing City, China

WU Minmin et al (447)

Source Apportionment of Soil Heavy Metals in Typically Agricultural Region around Chaohu Lake, China

QIN Xianyan et al (455)

Sources Apportionment of Soil Pollution of Heavy Metals in Riverside Water Source Field based on Positive Matrix Factorization Method

ZUO Rui et al (464)

Distribution Characteristics of Fluorine in Soils Profiles Developed on Carbonate Rocks and Its Influencing Factors

HUANG Yao et al (472)

Assessment of Ground Subsidence Hazard Induced by Building Load Based on Weights­of­evidence Model

YI Yaoguo et al (478)