不同覆盖方式对红地球葡萄园土壤物理性质的影响  

Effects of different mulching on physical properties of soil in Red Globe vineyard

作　　者：杨江山[1] 常永义[1] 李玟璇[1] 

机构地区：[1]甘肃农业大学农学院,兰州730070

出　　处：《中外葡萄与葡萄酒》2010年第4期10-13,17,共5页Sino-Overseas Grapevine & Wine

基　　金：国家公益性行业(农业)科研专项(nyhyzx07-027)资助

摘　　要：试验通过葡萄园秸秆覆盖、地膜覆盖、生草覆盖和清耕处理,探索不同覆盖对红地球葡萄园土壤物理性质的影响。结果表明:葡萄园秸秆覆盖、地膜覆盖和种植绿肥不同覆盖方式均可提高0～15cm土壤平均含水量,秸秆覆盖保水效果最明显,但3种覆盖下15～30cm土壤平均含水量均低于清耕。地膜覆盖提高了不同土壤深度平均地温,且越接近地面增温效果越好。秸秆覆盖0～10cm平均地温低于其它处理,尤其表层降温更明显。生草处理在10～25cm土壤中降温效果较好。土壤容重大小顺序为秸秆覆盖>地膜覆盖>清耕>生草覆盖,土壤孔隙度由大到小顺序为生草覆盖>清耕>地膜覆盖>秸秆覆盖,田间持水量大小顺序为清耕>生草覆盖>地膜覆盖>秸秆覆盖。The influence of different mulching on the physical properties of soil was investigated in Red Globe vineyard under residue coverage, plastic mulch, green cover and clean tillage conditions. The results showed that residue coverage, plasticmulch and green cover could increase the moisture in the 0- 15cm topsoil in vineyard, among which residue coverage had the most obvious effect. However, the average moisture in 15 -30cm depth soil layer with these three kinds of mulch treatments were lower than clean tillage. Plastic mulch could improve the temperatures in various soil layers, and the warming effect was better in the upper soil layers. The residue coverage treatment decreased the average temperature of soil in 0- 10cm depth more than other treatments, and the soil surface temperature was decreased most. Green cover showed cooling effect in l0- 25cm depth soil. Soil bulk density, soil porosity, and field water-holding capacity from the various treatments were residue coverage 〉 plastic mulch 〉 clean tillage 〉 green cover, green cover 〉 clean tillage 〉 plastic mulch 〉 residue coverage, and clean tillage 〉 green cover 〉 plastic mulch 〉 residue coverage.

关 键 词：覆盖 葡萄园 土壤 物理性质 

分 类 号：S606.1[农业科学—园艺学]