模拟酸雨对山东棕壤理化性质影响的研究  

EFFECT OF SIMULATING ACID RAIN ON PHYSICAL AND CHEMICAL PROPERITIES OF BUROZEM IN SHANDONG PROVINCE

作　　者：刘春生[1,2] 宋国菡[1,2] 史衍玺[1] 马玉增[1] 杨守祥[1] 萧月芳[1] 

机构地区：[1]山东农业大学 [2]山东农科院

出　　处：《山东农业大学学报（自然科学版）》1998年第2期211-216,共6页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：山东省自然科学基金

摘　　要：用不同酸度的模拟酸雨对棕壤进行室内的淋洗试验。结果表明，ｐＨ≥４的酸雨连续淋洗１０年，淋滤液的电导率、ｐＨ和盐基离子淋失量与对照相比差别不大；ｐＨ３的酸雨可对电导率、ｐＨ和盐基离子产生明显影响；ｐＨ２的酸雨从第４年开始，淋滤液的氢离子浓度增加１０４倍以上。第１０年的电导率和盐基淋失１０年累积总量分别为对照的１８．０６和７．１２倍；４种模拟酸雨均可使土壤阳离子代换量下降；ｐＨ２的酸雨１０年淋失活性铝１３．３０ｍｇ／１００ｇ土。Leaching tests were carried out with different simulating acid rain on the surface soil of Burozem.The results showed that the higher the acid rain acidity was the more serious the damage to physical and chemical properities was.When the pH of acid rain was equal to or higher than 4.0,no significant influence could be observed over 10 years as compared to control.Effects of pH 3 acid rain on pH.EC of leacheate and amount of base ions loss was very obvious concentration of H + in leacheate of pH 2 acid rain increased by over 10000 times,and EC in the 10th years was 18.06 times as higher as that of control,and total of base ion loss during 10 years was up to 135.69mg/100g soil,which was 6.12 times higher than that of control.CEC decreased by 25%￣35% handing with 4 kinds of acid rain.Leaching loss of active AL by pH 2 acid rain was up to 13.30mg/100g soil during 10 years.

关 键 词：土壤 模拟酸雨 棕壤 理化性质 电导率 

分 类 号：S151.9[农业科学—土壤学]