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2种果草模式根系生态学特征研究
引用本文:蒋光毅,史东梅,刘玉民,刘立志.2种果草模式根系生态学特征研究[J].西南农业大学学报,2004,26(2):128-131.
作者姓名:蒋光毅  史东梅  刘玉民  刘立志
作者单位:[1]西南农业大学资源与环境学院,重庆400716 [2]重庆涪陵区水土保持办公室,重庆涪陵408000
基金项目:国家科技攻关计划(2001BA604A05)资助项目
摘    要:以退耕自然生草地为对照,研究了2种果草模式的地下生物量和根系空间分布特征,重点分不同级径对与土壤抗蚀性密切相关的有效根密度、根系总生物量、根系总长度以及根系总表面积进行了较系统的研究,结果表明果草模式下植物根系形成网络状空间分布格局,促进了土壤的抗冲性土体构型形成,紫花苜蓿是值得推广的果园间作牧草。

关 键 词:根系  空间分布特征  果草模式
文章编号:1000-2642(2004)02-0128-04

ECOLOGICAL FETURES OF TWO ORCHARD -PASTURAGE INTERCROPPING SYSTEMS
JIANG Guang-yi,SHI Dong-mei,LIU Yu-min,LIU Li-zhi.ECOLOGICAL FETURES OF TWO ORCHARD -PASTURAGE INTERCROPPING SYSTEMS[J].Journal of Southwest Agricultural University,2004,26(2):128-131.
Authors:JIANG Guang-yi  SHI Dong-mei  LIU Yu-min  LIU Li-zhi
Institution:JIANG Guang-yi~1,SHI Dong-mei~1,LIU Yu-min~1,LIU Li-zhi~2
Abstract:With the natural grassland as the control, where farmland had been restored to orchards/grassland, a systematic study was made of total root length, root biomass, root surface dimension and effective root density in two orchard-pasturage intercropping systems at Nantuo Town, Fuling, Chongqing. The results demonstrated that in both intercropping systems the root systems of the plants formed a meshwork pattern in their spatial distribution, which was favorable for the formation of an anti-erosion structure of the soil body. Alfalfa is recommended for cultivation in such intercropping systems.
Keywords:root system  spatial distribution characteristics  orchard-pasturage intercropping
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