农田生态系统中硫平衡的研究——地下水中硫的作用  

Sulphur Balance in Agro-ecosystem with Special Regard to Groundwater

作　　者：黄界颍[1] 马友华[1] 张继榛[1] 

机构地区：[1]安徽农业大学土化系,安徽合肥230036

出　　处：《土壤通报》2003年第3期233-237,共5页Chinese Journal of Soil Science

基　　金：安徽省自然科学基金资助(No.00041405)

摘　　要：论述考虑地下水中硫投入的农田生态系统中硫的平衡。农田生态系统中硫的循环包括作物生长期降雨中硫输入、大气硫干沉降、地表径流、地下水的硫投入和肥料中硫的输入、土壤渗漏水的硫输出、土壤有机硫的矿化与固定和作物吸收利用硫等环节。在一定的水文条件和气候条件下,地下水中的硫对农田生态系统中硫平衡起重要作用。The research of sulphur balance in agro-ecosystem was reviewed with special regard to the input to groundwater. The agro-ecosystem sulphur cycle consistes of inputs from rainfall during the crop growth period, atmospheric deposition, chemical fertilizer, water flux, groundwater and organic sulphur mineralization, and outputs from erosion, leaning, volatile sulphur emission, organic sulphur adsorption and crop removals of sulphur etc. The sulphur input through groundwater playes an important role in sulphur balance under a special hydrological and climatic conditions.

关 键 词：农田 生态系统 硫 营养水平 地下水 需求量 

分 类 号：S153.61[农业科学—土壤学] S158.3[农业科学—农业基础科学]