人工林地力衰退研究  

Researches on the Productivity Decline of Artificial Forests Site

作　　者：余波[1] 李守剑[1] 李贤伟[2] 袁晖[1] 

机构地区：[1]四川省林业勘察设计研究院,四川成都610081 [2]四川农业大学四川省生态林业工程省级重点实验室,四川雅安625014

出　　处：《四川林勘设计》2005年第2期6-12,共7页Sichuan Forestry Exploration and Design

摘　　要：通过查阅大量文献,在前人对人工林地力衰退研究的基础上,论述了国内外有关人工林地力衰退研究的历史及现状;从不同的角度论述了人工林地力衰退的原因,如不合理的营林措施、连栽、纯林等;并在此基础上综述了人工林地力衰退的防治研究,如调整林分结构、营造混交林、改善现有营林制度等;概述了人工林地力衰退的最新进展及今后的研究方向。This paper deals with the productivity decline of artificial forests site. According to some related documents and the farmer's study, some research about this field in history and now can be found in this disquisition, which also, from different point of view, studies in the reason of the productivity decline of artificial forests site, such as unreasonable method of management, overlap, pure forest and so forth. More still, some directions and keyways are proposed for further studies on how to resolve this problem, for example, adjusting stand structure, planning mixed forest, improving the system of planning and so on. It also summarizes the new headway and research direction in future of the productivity decline of artificial forests site.

关 键 词：人工林 地力衰退 林分结构调整 经营制度 混交林 合理施肥 

分 类 号：S718.551.2[农业科学—林学] S75