耕作方式对红壤坡耕地土壤持水及入渗性能的影响  

Effect of tillage methods on water retention and infiltration properties of soils on red soil sloping farmland

作　　者：赵耀 解杰 陶俊霖 罗贤 李永胜 王道祥 陈正发 ZHAO Yao;XIE Jie;TAO Junlin;LUO Xian;LI Yongsheng;WANG Daoxiang;CHEN Zhengfa(College of Water Conservancy,Yunnan Agricultural University,Green Smart Agricultural Field and Carbon Emission Reduction Engineering Research Center of University in Yunnan Province,Kunming Yunnan 650201,China)

机构地区：[1]云南农业大学水利学院,云南省高校绿色智慧农田与碳减排工程研究中心,云南昆明650201

出　　处：《农业工程》2024年第11期112-116,共5页AGRICULTURAL ENGINEERING

基　　金：云南省基础研究计划面上项目(202201AT070272);云南农业大学大学生创新创业训练计划项目“不同灌溉模式的红壤坡耕地土壤优先流特征”(2023)。

摘　　要：采取合理的耕作方式是提高红壤坡耕地抗旱保墒能力的关键。以云南省红壤坡耕地为研究对象,设置传统耕作、覆膜耕作、横坡垄作和顺坡垄作4种耕作方式的微试验小区,探明不同耕作方式条件下土壤持水及入渗参数变化特征。结果表明,覆膜耕作对降低土壤容重、增大土壤孔隙度效果显著,土壤含水率相比其他耕作方式增大5.35~11.71个百分点;覆膜耕作与横坡垄作土壤入渗参数变幅相对较大,横坡垄作累计入渗量相比其他耕作方式增大20.24%~85.42%;覆膜耕作的土壤蓄水保墒能力较好,横坡垄作的土壤供水性能较好,而顺坡垄作则在蓄水保墒能力方面均较差。Adopting appropriate tillage methods is key to enhancing ability of drought resistance and water retention in red soil sloping farmland.Focusing on red soil sloping farmland in Yunnan Province,small experimental plots were set with four different tillage meth-ods of traditional tillage,plastic mulching,cross-slope ridge tillage and along-slope tillage,to explore characteristics of changes in soil water retention and infiltration parameters under different tillage methods.Results indicated that,plastic mulching reduced soil bulk density and increased soil porosity significantly,with higher soil moisture content of 5.35%~11.71%than other farming methods;both plastic mulching and cross-slope ridge tillage showed relatively large variations in soil infiltration parameters,with cross-slope ridge till-age improved by 20.24%~85.42%greater cumulative infiltration compared to other farming methods;plastic mulching demonstrated good soil water storage and moisture conservation,while cross-slope ridge tillage exhibited good soil water supply performance.In con-trast,along-slope tillage performed poorly in terms of both water storage and moisture conservation.

关 键 词：耕作方式 土壤持水性 土壤入渗性能 红壤坡耕地 季节性干旱 

分 类 号：S28[农业科学—农业水土工程]