摘要
连作障碍是杨树生产经营中普遍存在的问题,生产力维持也是技术难点之一。文中在建立连作障碍相互关系模式图的基础上,分别从连作障碍的表现、化感作用、生产力维持等3个方面综述国内外的研究进展,并对今后研究提出3点建议:探寻连作障碍的触发因素,寻找地力衰退的拐点以及发生不可逆衰退的临界点,形成科学、系统的规避连作障碍技术指南。
Continuous cropping obstacle is a common problem in the management of poplar.Productivity maintenance is also one of the technical difficulties.This paper reviews the international and national research progress in the presentation of continuous cropping obstacle,allelopathy and productivity maintenance based on the established relation graph of continuous cropping obstacle.Three suggestions are then put forward:1)seeking the trigger factor of continuous cropping obstacle;2)finding the inflexion of soil degradation and the critical point toward the irreversible decline;and 3)establishing the scientific and systematic technical manual to avoid continuous cropping obstacle.
作者
赵娟
郑智礼
郭斌
杨飞
杨延青
Zhao Juan;Zheng Zhili;Guo Bin;Yang Fei;Yang Yanqing(Shanxi Academy of Forestry Sciences,Taiyuan 030012,China)
出处
《世界林业研究》
CSCD
北大核心
2020年第1期14-19,共6页
World Forestry Research
基金
国家重点研发计划课题“山西黄土高原区白杨工业资源材高效培育技术研究”(2016YFD060040304).
关键词
杨树
连作障碍
生产力维持
poplar
continuous cropping obstacle
productivity maintenance
