文献类型：期刊文献

中文题名：基于结构参数均值的林分空间结构综合评价研究

英文题名：Comprehensive Evaluation of Forest Spatial Structure Based on the Mean Values of Structural Parameters

作者：惠刚盈[1,2] 赵中华[1] 胡艳波[2] 张弓乔[2] 程世平[1] 徐雪飞[3]

第一作者：惠刚盈

机构：[1]平顶山学院,河南省生态经济型木本植物种质创新与利用重点实验室,河南平顶山467000;[2]中国林业科学研究院林业研究所,国家林业和草原局林木培育重点实验室,北京100091;[3]河北丰宁国有林场管理处两间房林场,河北丰宁068356

年份：2023

卷号：36

期号：2

起止页码：12-21

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2023_2024】；

基金：中央级公益性科研院所基本科研业务费专项资金(CAFYBB2020ZB002-1)。

语种：中文

中文关键词：基于相邻木关系;林分空间结构;结构参数均值;单位圆法;综合评价

外文关键词：adjacent trees;stand spatial structure;mean value of structure parameters;unit circle method;comprehensive evaluation

分类号：S718.45

摘要：[目的]构建基于相邻木关系的林分空间结构综合指数用以评价林分空间结构优劣,指导林分结构优化。[方法 ]在诠释林分空间结构参数角尺度、密集度、大小比数和混交度均值意义的基础上,对林分角尺度、密集度和大小比数的均值重新赋值,进行标准化处理,使其成为正向指标;林分平均混交度为正向指标,采用实测值,然后将林分空间结构参数与单位圆法相结合,构建林分空间结构综合评价指数(FSS),并采用不同林分类型对其有效性进行验证。[结果 ]运用构建的空间结构综合评价指数对我国4个地区47块样地的评价结果表明:1)天然林中极端立地条件下的天然纯林空间结构最差;2)天然混交林的空间结构优于人工混交林;3)人工林中人工混交林的林分空间结构明显优于人工纯林;4)天然纯林空间结构优于人工纯林。[结论 ]构建的林分空间结构综合评价指数能够评价林分空间结构优劣,科学表达出“天然混交林的空间结构优于人工混交林、人工混交林优于人工纯林以及天然纯林优于人工纯林”的普遍认知,是一个良好的林分空间结构综合测度指数,对林分空间结构优化和效果评价具有很好的指导意义。
[Objective]A comprehensive index of stand spatial structure based on adjacent trees was constructed to evaluate the advantages and disadvantages of stand spatial structure and guide the optimization of stand structure.[Method]Based on the interpretation of the mean values of stand spatial structure parameters of uniform angle index,crowding,neighborhood comparison and mingling,they were assigned and standardized to make them positive indicators;the average value of mingling is a positive index,and the measured value is adopted;Then the stand spatial structure parameters were combined with the unit circle method to construct the stand spatial structure comprehensive evaluation index(FSS),and its effectiveness was verified by different stand types.[Result]The evaluation results of 47 sample plots in 4 regions of China using the constructed spatial structure comprehensive evaluation index showed that:1)The spatial structure of natural pure forests under extreme site conditions was the worst among natural forests;2)The spatial structure of natural mixed forest was better than that of artificial mixed forest;3)The stand spatial structure of mixed plantation is obviously better than that of pure plantation;4)The spatial structure of natural pure forest was better than that of artificial pure forest.[Conclusion]The comprehensive evaluation index of stand spatial structure can evaluate the advantages and disadvantages of stand spatial structure,and can scientifically express the general understanding that"the spatial structure of natural mixed forest is superior to that of artificial mixed forest,artificial mixed forest is superior to that of artificial pure forest,and natural pure forest is superior to that of artificial pure forest".It is a better comprehensive measure index of stand spatial structure,and has guiding significance for optimization of stand spatial structure and effect evaluation.