间种白三叶草对亚热带茶园土壤生态系统的影响  

Effects of interplanting Trifolium repens in tea plantation on soil ecology in subtropical hilly region

作　　者：向佐湘[1] 肖润林[1] 王久荣[1] 彭晚霞[1] 夏艳珺[2] 徐华勤[2] 黎星辉[1] 

机构地区：[1]中国科学院亚热带农业生态研究所,湖南长沙410125 [2]湖南农业大学草业科学系,湖南长沙410128

出　　处：《草业学报》2008年第1期29-35,共7页Acta Prataculturae Sinica

基　　金：中国科学院知识创新工程重要方向项目(KSCX2-YW-N-48);长沙市科技计划重点项目(k070514-11);国家“十一五”科技支撑计划(2006BAD06B01)资助

摘　　要：亚热带丘陵茶园间种豆科牧草，有利于调节茶园土壤温度和水分状况，改善土壤动物和微生物的生存环境，为茶叶优质高产奠定基础。在连续5年间种白三叶草的幼年茶园和其相临的清耕茶园进行土壤分析和田间调查，系统研究间种白三叶草对亚热带丘陵茶园土壤生态系统的影响。结果表明，和清耕茶园相比．间种白三叶草茶园土壤孔隙度高4．4％．有机质、水解氮和有效磷含量高24．1％，38．2％和16．2％，提高了表层土壤（0～20cm）和春茶采摘期（4—6月）的土壤水分含量，延缓并缩短了高温和干旱时间，营造了有利于蚯蚓生长发育的土壤环境，增加了土壤中有机碳含量和微生物量碳、氮、磷。在亚热带丘陵幼年茶园间种白三叶草可整体改善土壤生态系统环境，有助于茶叶的优质、安全和高效生产。Effects of interplanting Trifolium repens in tea plantation were studied by the way of comparison in soil physical and chemical properties, temperatures, moisture, soil animal （earthworm） and the microorganism amount during the past consistent five years. It was found that the interplantation can not only improved soil ecology by developing soil physical properties and soil fertility, increasing the soil water content which was helpful to regulate the period of drought. Meanwhile, but also can enrich the soil organic C, SMB-C, and the proportion of the SMB-C occupying organic C, so as to create the favorable environmental condition of soil for the growth of earthworms. As a result, this kind of interplantation finally improved the quality of tea growth environment, and it was helpful to increase tea yield and to improve tea quality.

关 键 词：茶园 间种白三叶草 生态效应 亚热带丘陵 

分 类 号：S541.2[农业科学—作物学] S571.1