促渗剂LSAA对土壤物理性质的影响研究  

Effect of Infiltration-enhmncing Material(LSAA) on Soil Physical Properties

作　　者：胡春光[1] 刘晨 李俊良[1] 

机构地区：[1]青岛农业大学资源与环境学院,青岛266109 [2]福建省环境保护局,福州350000

出　　处：《科学技术与工程》2009年第14期4125-4129,共5页Science Technology and Engineering

摘　　要：近年来,由地表径流引起的面源污染问题正日益凸现,通过向地表土壤施加高分子促渗剂,可以减少径流产生量,削减下游面源污染负荷。实验研究了利用木质素合成的新型降雨促渗剂(简称LSAA)对土壤物理性质的影响,结果表明LSAA可以使供试土壤中>0.25mm的水稳性土壤团聚体提高12.51%—23.46%,土壤容重降低1.33%—11.76%,土壤的渗透系数提高10.56%—32.57%,有效促进雨水下渗。With the gradual development of management and control technology on point pollution, the nonpoint pollution resulted from runoff has become more and more serious. By altering the soil properties with high polymers can enhmnce the rainfall infiltration and reduce the non-point pollution load. The effect of infiltration-enhmncing material （LSAA） on the soil physical properties was studied. The result showed that by adding LSAA the water stability aggregate are increased by 12.51%-23.46%, the bulk density is reduced by 1.33%-11.76%, soil infiltration coefficient is enhanced by 0.56% -32.57%.

关 键 词：面源污染 地表径流 木质素 物理性质 

分 类 号：S151.92[农业科学—土壤学]