摘要
1 前言两千多年来,中国亚热带山地一直沿用原始的刀耕火种-炼山造林的方式进行林木的更新。营造以杉树和松树等针叶树种为主的人工林。许多研究表明,以这种方式进行林木更新,会造成严重的水土流失,使土壤产生逆向发育,土壤肥力下降,土壤物理性状恶化,并带来许多严重的社会和生态问题。研究和探索替代传统的炼山造林的林木更新方式,对于保护森林土壤资源和森林生态系统,促进林业生产持续发展有着重大意义。本文在对地处亚热带的江西省主要林区大量调查研究。总结群众造林经验的基础上,初步总结出了两种新的林木更新方式,即不炼山造林方式和人工促进天然更新方式(简称人促更新方式)。
After having compared the effects of the two methods of reforestation, the non-burning afforestation and managed natural forest regeneration, on the soils following the forest regeneration with that of the traditional control burning afforestation, this paper indicated that the former two methods could maintain the litter and its containing nutrients on the forest soil surface, decline soil erosion, protect soil from regrassive development and texture abruptness, keep soil fertility, and avoid soil physical properties from deteriotation. This paper proposed that from the view of ecological protection and forestry sustaining development, attention should be paid to these two forest regeneration methods.
出处
《生态学杂志》
CAS
CSCD
北大核心
1996年第4期19-23,共5页
Chinese Journal of Ecology
