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作 者:张俊艳[1] 成克武[1] 臧润国[2] 郎南军[3] 江期川[3] 王茜[1]
机构地区:[1]河北农业大学园林与旅游学院,河北保定071000 [2]中国林业科学研究院森林生态环境与保护研究所,北京100091 [3]云南省林业科学院,云南昆明650204
出 处:《河北农业大学学报》2011年第3期71-76,共6页Journal of Hebei Agricultural University
基 金:"十一五"国家科学技术攻关项目(2006BAD03A10;2006BAD03A04)
摘 要:近自然度是评价现实植被与其原始状态之间的距离或相似性的一个参数,对于森林的近自然经营具有重要参考价值。本研究利用层次分析法构建了云南松群落近自然度评价指标体系,并对云南省一平浪林场6个不同云南松群落类型进行了近自然度评价。通过敏感性分析,对评价因子的筛选和应用标度法构造判断矩阵对各评价指标权重的计算,构建了由土壤特性、群落结构和群落演替三个层次11个指标构成的近自然度评价体系。根据6个不同云南松群落近自然度的计算结果,将其依次划分为不同的近自然等级,并根据评价结果提出了不同群落类型的近自然经营措施。评价结果表明,该评价体系能够较为客观地反映不同群落的近自然状态。Naturalness,as an important factor in the near-natural forest management,is an evaluating index to describe the distance or the similarity between current vegetation and its primitive state.In this paper,the Naturalness evaluating index system of Pinus yunnanensis forest was established based on the proach of analytic hierarchy process,and six different Pinus yunnanensis communities were evaluated according to the natural composition index system in Yipinglang forest farm in Yunnan province.According to selection through sensitivity analyzing and calculating of weight values of evaluation indexes,the evaluation system was constructed which in eleven indexes belong to three aspects of soil characteristic,community construction and succession state.Based on analysis of the results,the six different Pinus yunnanensis forestry were divided into four grades,and different management measures were given to reflect the near natural state of Pinus yunnanensis forest objectively.
分 类 号:S791.257[农业科学—林木遗传育种]
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