检索结果-南通市图书馆

Shrinkage Characteristics of Lime Concretion Black Soil as Affected by Biochar Amendment

Pedosphere 2018年第5期28卷 713-725页

作者： WEI Cuilan GAO Weida William Richard WHALLEY LI Baoguo Key Laboratory of Arable Land Conservation (North China) Ministry of Agriculture Key Laboratory of Plant-Soil Interactions Ministry of Education College of Resources and Environmental Sciences China Agriculture University Rothamsted Research West Common

Studies have reported that biochar is a sustainable amendment that improves the chemical and physical properties of *** this study,an incubation experiment was conducted to investigate the effects of different application rates of biochar on the cracking pattern and shrinkage characteristics of lime concretion black soil after three wetting and drying *** derived from the corn straw and peanut shell mixture was applied to the soil at rates of 0,50,100,and 150 g kg^(-1)dry weight,representing the treatments T_(0),T_(50),T_(100),and T_(150),*** the wetting and drying cycles,the cracking pattern and shrinkage characteristics of the unamended and amended soil samples were *** of biochar significantly increased soil organic carbon content in the *** soil desiccation,biochar significantly reduced the rate of water *** propagated slowly and stopped due to the relatively higher water content in the soil applied with *** cracking area density(ρ_c),equivalent width,fractal dimension,and cracking connectivity index decreased during the drying process with increasing application rate of ***ρ_(c )value of the T_(50),T_(100),and T_(150) treatments decreased by 33.6%,52.1%,and 56.9%,respectively,after three wetting and drying cycles,whereas the T_(0) treatment exhibited a marginal *** coefficient of linear extensibility,an index used to describe onedimentional shrinkage,of the unamended soil sample(T_(0))was approximately *** of 100 and 150 g kg^(-1)biochar to the soil significantly reduced the shrinkage capacity by 41.45%and 45.54%,*** slope of the shrinkage characteristics curve,which indicates the ralationship between soil void ratio and moisture ratio,decreased with increase in the application rate of ***,compared with the T_(0) treatment,the proportional shrinkage zone of the shrinkage characteristic curve of the T_(50),T_(100),and T_(150) treatm

关键词： coefficient of linear extensibility soil cracking pattern soil moisture ratio soil shrinkage characteristic curve soilstructure soil void ratio wetting and drying cycles

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：