期刊论文

中文

林业科学

1001-7488

2008

44

8

141-144

10.3321/j.issn:1001-7488.2008.08.025

国家“十一五”攻关项目（2006BAD03A05） 河南省自然科学基金项目（200406201）.

本校为第一机构

果园生草栽培是在果树行间或全园种植草本植物作为土壤覆盖的一种生态果园培育模式。二次大战后生草栽培在国外得到迅速发展，目前，欧美及日本生草果园面积占果园总面积的55％～70％以上（姚胜蕊等，1999）。实际上，种植和利用绿肥是我国农业生产的传统经验之一：早在公元6世纪人们就认识到果园种植豆科作物有好处（吴光林，1992）.

The spatial distribution characteristics and growing dynamics of the root systems in a apricot and alfalfa sod-culture system were investigated. The results showed that the vertical distribution of the 4-year-old apricot root system could reached to the depth of 100 cm, and roots of some 46.5 % distributed in the layer of 20 - 40 cm. The vertical distribution of the 2-year-old alfalfa roots could reached to 50 cm depth, and the roots of 70% distributed in the layer of 0 - 20 cm. Those results suggested the root distribution of the two species d...