首页 | 本学科首页   官方微博 | 高级检索  
     检索      

太湖地区农田生态环境中土壤饱和导水率研究
引用本文:陈效民,潘根兴,王德建,李宝山.太湖地区农田生态环境中土壤饱和导水率研究[J].水土保持通报,2000,20(5):11-12,59.
作者姓名:陈效民  潘根兴  王德建  李宝山
作者单位:1. 南京农业大学,资源与环境科学学院,南京,210095
2. 中国科学院土壤研究所,南,京,210008
基金项目:国家高技术研究发展计划(863计划) 
摘    要:对太湖地区主要水稻土类型的饱和导水率进行了研究.结果表明,该土壤的饱和导水率变化于7.20×10-5~6.33×10-4 cm/s, 并随着深度的增加饱和导水率迅速下降;原状土和扰动土的饱和导水率相差很大, 土壤的质地、有机质含量、容重、孔隙度和结构系数等均对饱和导水率有一定的影响.原状土的饱和导水率能反映田间的实际情况, 对研究土壤水分平衡和水土保持有极其重要的意义. 而扰动土的饱和导水率只能作为一种农业工程的参考数据被运用.

关 键 词:饱和导水率  太湖地区  土壤  农田生态环境
收稿时间:2000/6/23 0:00:00

A Study on Saturated Hydraulic Conductivity of Farmland Environment Soil of Taihu Lake Region
CHEN Xiao min,PAN Gen xing,WANG De jian and Li Bao shan.A Study on Saturated Hydraulic Conductivity of Farmland Environment Soil of Taihu Lake Region[J].Bulletin of Soil and Water Conservation,2000,20(5):11-12,59.
Authors:CHEN Xiao min  PAN Gen xing  WANG De jian and Li Bao shan
Institution:College of Natural Resources and Environmental Science, Nanjing A gricultural University, Nanjing 210095, Jiangsu Province, PRC;College of Natural Resources and Environmental Science, Nanjing A gricultural University, Nanjing 210095, Jiangsu Province, PRC;I nstitute of Soil Science, Chinese A cademy of Sciences, Nanjing 210008, Jiangsu Province, PRC;College of Natural Resources and Environmental Science, Nanjing A gricultural University, Nanjing 210095, Jiangsu Province, PRC
Abstract:The saturated hydraulic conductiv it ies of mainly paddy soil in Taihu lake region were studied. The results were as follows. (1) The saturated hydraulic conductivities in the soil were changeable from 7.20×10-5 to 6. 33×10-4 cm/ s and decreased with the increasing of soil depth.(2) The saturated hydraulic conductiv it ies of undistur bed soil and distur bed soil were quite different and affected by soil texture, organic matter content, bulk density, porosity and structural index. The saturated hydraulic conductivity of undisturbed soil can represent the really case in the field and is significant to study soil moisture balance and soil water conservation. But the saturated hydraulic conductivity of disturbed soil can only be used for a reference information in agricultural engineering.
Keywords:saturated hydraulic conductivity  affective factors  Taihu lake region
本文献已被 万方数据 等数据库收录!
点击此处可从《水土保持通报》浏览原始摘要信息
点击此处可从《水土保持通报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号