Vol. 51, No. 3, Tot No.353 2023----Institute of Geochemistry Chinese Academy of Sciences

Vol. 51, No. 3, Tot No.353 2023

CONTENTS

	Research Results
255	Variation Characteristics and Influence Mechanisms of TOC and TN in Karst Reservoirs and Inlet Rivers ZOU Yan et al
266	Influence of Ecological Water Replenishment on Groundwater Level and Water BQuality along the Yongding River CHEN Jiji et al
274	Analysis of Nitrate Sources in Water in the Changhe River Basin during Dry Season YONG Liang et al
287	Geochemical Characteristics and Source Apportionment of Heavy Metals in Soils around Lead inc Smelting Industry in Sichuan Province WANG Jianming et al
299	Enrichment Characteristics and Pollution Risks of Heavy Metals in Soils with High Geochemical Background in Chongqing City PU Gang et al
308	Temporal and Spatial Distribution of Heavy Metals in Typical Mountainous Areas of Southwest China：Based on Tree Rings Inversion and Analysis GAO Yuan et al
318	Geochemical Distribution and Ecological Risk Evaluation of Heavy Metal in Surface Sediments of Sancha Lake in Chengdu City ZHENG Peijia et al
330	Responses of Soil rice Cd to Different Conditioners and their Combinations in a Karst Area with High Geological Background RAN Gang et al
338	Understanding Mercury Altitudinal Distribution and Influencing Factors in Montane Forest Ecosystems of Ailao Mountain GONG Hongmei et al
348	Mass Concentrations and Sulfur Isotope Compositions of Atmospheric PM10 in Guiyang, China XIAO De′an et al
354	Effects of Organic Matter and Nutrients on Natural Radionuclides in Sediment Core from Dianchi Lake WAN Nannan et al
	Special Subject and Review
363	Advances in Microbial Iron Oxidation and Its Application HUANG Qiang et al