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re dai ren gong lin sheng tai xian zhuang ji hui fu dui ce
Author(s): 
Pages: 52-58
Year: Issue:  1
Journal: EUCALYPT SCIENCE & TECHNOLOGY

Keyword:  热带人工林生态恶化恢复对策;
Abstract: 随着世界热带人工林集约经营水平的不断提高,林木单位面积生产量将越来越大,轮伐期也变得越来越短.这使得当今热带人工林生态出现几个特点:(1)地力衰退严重;(2)生物多样性的丧失;(3)病虫害为害加剧;(4)局部或区域性气候受到影响.为了改善热带人工林生态现状,发展可持续林业,在经营热带人工林时必需做到:(1)维持热带人工林养分的平衡;(2)在营造热带人工林时应当提倡免耕法,同时更应营造或保留一定量的公益林;(3)营造混交林代替单一纯林和加强育种管理.
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