Vol. 51, No. 4, Tot No.354 2023----Institute of Geochemistry Chinese Academy of Sciences

Vol. 51, No. 4, Tot No.354 2023

CONTENTS

	Research Results
377	Spatial temporal Distribution of Bacterial Communities and Main Nutrients Driver of Sediment in A Shallow Lake ZHONG Meifang et al
388	Geochemical Characteristics and Indicative Significance of Soil RareEarth Elements Developed from Basalt TAO An et al
401	Meta-analysis of Carbonate Erosion Rates and Their Influencing Factors in Karst Areas YAO Chunzhi et al
412	Effect of Isopropanol on Product Distribution and Heavy Metal Migration during Hydrothermal Liquefaction of Solanum Nigrum YU Xiaofeng et al
422	Heavy Metal Content and Health Risk Assessment of Road Dust and Foliar Dust in the City Center of Shangrao PAN Huahua et al
431	Accumulation Characteristics and Ecological Risk of Sediment Heavy Metals in the Marginal Area of Poyang Lake ZHANG Xiaolong et al
441	A New Classification Method of Rocky Desertification Degree in Different Karst Habitats of Southwest China TANG Rongbin et al
455	Method Validation of the Reconstruction of the Historical Evolution of Regional Atmospheric Mercury by the Tree Ring Mercury Records of Schrenk Spruce at Mt. Tianshan HE Chunlu et al
	Special Subject and Review
465	Review and Prospects of the Biogeochemical Cycling of Nitrogen in Marine Systems WANG Dongsheng et al