中国土壤风化速率研究  

Study on weathering rate of soil in China

作　　者：段雷[1] 郝吉明[1] 叶雪梅[1] 谢绍东[2] 

机构地区：[1]清华大学环境科学与工程系,北京100084 [2]北京大学环境科学中心,北京100871

出　　处：《环境科学学报》2000年第S1期1-7,共7页Acta Scientiae Circumstantiae

基　　金：国家自然科学基金(编号:59678016)资助

摘　　要：利用模拟淋溶实验、质量平衡法、PROFILE模型、MAGIC模型以及两种经验方法对中国十几种主要土壤类型的风化速率进行了研究 .研究表明 ,中国南方富铝土区域 (包括砖红壤带、赤红壤带、红壤黄壤带和黄棕壤带 )以及东北的硅铝土区域 (包括暗棕壤黑土带和漂灰土带 )的风化速率普遍较低 (通常低于 1.0keq·ha-1·a-1) ,土壤缓冲酸沉降的能力较弱 .The weathering rates of soils in China were estimated through the mass balance approach, simulated leaching experiments, PROFILE model, MAGIC model, and two empirical methods. Results show that the weathering rates of soils are very low (usually lower than 1.0? keq·ha -1 ·a -1 ) in the allite areas (including latosol, lateritic red earth, red earth, yellow earth, and yellow brown earth) in south China, and the silalsol areas (consisting of dark brown forest soil, black soil, and podzolic soil) in northeast China. These soils are therefore sensitive to acid deposition.

关 键 词：风化速率 酸沉降 土壤 矿物 中国 

分 类 号：X[环境科学与工程]