摘要
红壤水分含量随土壤深度而增加为农林间作的水分协同利用提供了可能。但土壤水分动态结果表明农林间作不会改善表层土壤水分状况。南酸枣在干旱季节主要通过吸收深层次土壤水分,与间作花生对表层土壤水分的竞争也不剧烈。与单作南酸枣相比,间作系统中南酸枣种植带土壤水分含量较低。这表明农林间作对土壤水分的影响不是促进间作南酸枣生长、抑制间作花生生长的主要原因。
Soil moisture increased with soil depth in Udic ferrosol profile, providing possibility of synergistic utilization of soil water in agro-forest cropping system. Analysis of soil water dynamics, however, shows no obvious synergy in utilization of or competition for water in soil between Choerospondias axillaris and peanut in alley cropping system. Change in soil moisture in the alley cropping system was not a key factor for decline in peanut yield and increase in Choerospondias axillaries biomass.
出处
《土壤》
CAS
CSCD
北大核心
2003年第3期232-235,247,共5页
Soils
基金
中国科学院知识创新项目 (KZCX2-407 )
国家973项目(G1999011801)
IAEA合作项目部分成果。
关键词
红壤
农林间作
土壤水分
Udic Ferrosol, Alley cropping, Soil moisture
