摘要
在红壤丘陵区幼龄茶园通过连续4年稻草覆盖的大田试验,研究了稻草覆盖对茶园的生态综合调控效应。结果表明,稻草覆盖改良了土壤理化性状,提高了茶树生长时期(3~10月)的土壤水分含量,特别是土壤表层(0~20 cm)的水分含量;缓冲了茶园土壤温度变化;抑制了茶园杂草的生长;增加了蜘蛛等天敌的数量,有效地控制了假眼小绿叶蝉和茶蚜虫等害虫数量,但茶尺蠖显著增加;有利于蚯蚓的生长,改善了茶园生态环境。
In this paper,a field experiment with four years straw mulching was conducted in a young tea plantation in subtropical hilly red soil region to study the integrative ecological regulation effects of this mulching.The results showed that straw mulching improved soil physical and chemical properties,increased the moisture content in 0～20 cm soil layer during the key growth period of tea plant(April to June),postponed and shortened the period of high temperature and continual drought,inhibited some pest insect...
出处
《生态学杂志》
CAS
CSCD
北大核心
2006年第5期507-511,共5页
Chinese Journal of Ecology
基金
中国科学院农业重点资助项目"区域农业安全高效生产综合技术研究与示范"(NK十五-D-04)。
关键词
茶园
稻草覆盖
生态效应
红壤丘陵区
tea plantation
straw mulching
ecological effect
hilly region.
