苍梧县珠江生态经济型防护林体系的优良造林树种选择研究

发布时间：2018-01-14 15:16

本文关键词：苍梧县珠江生态经济型防护林体系的优良造林树种选择研究　出处：《西部林业科学》2009年04期 　论文类型：期刊论文

【摘要】：位于广西东部珠江水系区的苍梧县珠江生态经济型防护林体系的优良造林树种选择研究,是根据树种的生物学、生态学特性,并以构成其防护林体系的防护林、用材林、经济林、薪炭林各林种的功能需求特征为依据,在充分遵循其树种优化选择原则的基础上,采用层次分析法对各林种功能作用所需求的要素,按其层次分解为不同的组成因素,并按因素间的相互联系、影响及其隶属关系进行组合,形成一个多层的分析结构模型,即树种优化选择的评价模型,用指标层相对于控制层(目标层)的重要性权重来确定营建该防护林体系待选的56个树种的优劣次序,明确了不同林种对其造林树种选择诸因素(依据)间的权重问题,评选出了适合苍梧县营造珠江生态经济型防护林体系的优良造林树种,为营建其最大综合效能的珠江生态经济型防护林体系的优良树种选择提供了科学依据。
[Abstract]:The study on the selection of excellent afforestation tree species of Zhujiang Eco-economic shelterbelt system in Cangwu County, located in the Pearl River system of eastern Guangxi, is based on the biological and ecological characteristics of the tree species and the protective forest that constitutes its protective forest system. On the basis of the functional demand characteristics of timber forest, economic forest and fuelwood forest, and on the basis of following the principle of tree species optimization selection, AHP was used to analyze the factors required by the function of each forest species. According to its hierarchical decomposition into different constituent factors, and according to the interrelationship between the factors, the influence and the subordinate relationship are combined to form a multi-layer analysis structure model, that is, the evaluation model of tree species optimization selection. The importance weight of the index layer relative to the control layer (target layer) was used to determine the order of the 56 tree species to be selected for the construction of the shelterbelt system. In this paper, the weight of different forest species to the selection of afforestation tree species was determined, and a good afforestation tree species suitable for the ecological and economic protection forest system of Zhujiang River in Cangwu County was selected. It provides a scientific basis for the selection of good tree species for the construction of Pearl River eco-economic shelterbelt system with maximum comprehensive efficiency.
【作者单位】：广西林业科学研究院;苍梧县林业局;
【基金】：广西区林业局重点科技项目“苍梧县生态经济型防护林体系综合配套技术研究与示范”项目(林科字2002第76号)支持
【分类号】：S727.2
【正文快照】： 苍梧县位于广西东部,地处珠江水系区的东经110°51′~111°41,′北纬22°58′~24°10,′东与广东的封开、郁南两县接壤,西与藤县交界,南与岑溪市毗邻,北与贺县、昭平县相连。属南亚热带季风气候。年均温21·2℃,极端最高温38℃,极端低温-2·4℃,年均降水量1 500 mm,年均相对

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