摘要
为了研究湘南红壤坡地幼龄桔园套种不同品种牧草及不同经济作物的生态环境效应,对其生态环境效益进行实验观测。结果表明:幼龄桔园套种不同作物均能明显增加地面覆盖,减少水土流失。幼龄桔园套种花生,既能保证柑桔的产量,同时其保水效果较好能够缓解桔园的季节性干旱;套种罗顿豆能够获得最大的干物质产量,对土壤有机质有较好的累积作用和固氮作用,相比其它作物能够更快的培肥土壤;对本研究中的几种利用方式的生态环境效应还需进一步研究。
Different species of pasture and different forage crops were intercropped in young citrus orchard on slope land of red soils in South Hunan, and their eco-environmental effects were observed. The results showed that the different crops were intercropped in young citrus orchard would obviously increase the land coverage, and decrease water loss and soil erosion. Peanuts were intercropped in young citrus orchard could ensure the production of citrus, and it could increase the soil water capacity to ease seasonal drought in young citrus orchard at the same time; Lotononis bainesii were intercropped in young citrus orchard could get the maximum yield of dry matter, while it could obviously increase soil organic matter and had stronger nitrogen fixation, and it also could increase soil fertility faster than the other crop treatments. However, eco-environmental effects of several utilization methods used in this paper need to be studied further.
出处
《湖南农业科学》
2011年第10期108-111,共4页
Hunan Agricultural Sciences
基金
公益性行业(农业)科研专项经费(201103005-01-06)
国家科技支撑计划重点项目(2009BADC6B05)
关键词
红壤坡地
幼龄桔园
利用方式
生态环境效应
sloping fields of red soils
young citrus orchard
utilization method
eco-environmental effect
