中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 不同干扰类型栲树次生林林分结构特征分析 西北农林科技大学学报(自然科学版) 2014,42 (2) 72-76+80
Position: Home > Articles > Stand structure characteristics of Castanopsis fargesii secondary forest with different interference types Journal of Northwest A & F University(Natural Science Edition) 2014,42 (2) 72-76+80

不同干扰类型栲树次生林林分结构特征分析

作  者：
杜燕;刘东兰;郑小贤
单  位：
北京林业大学森林资源与环境管理国家林业局重点实验室
关键词：
栲树;干扰类型;物种多样性;角尺度;大小比数;混交度
摘  要：
【目的】研究南方集体林区栲树次生林的干扰类型及其林分结构特征,为今后南方地区常绿阔叶林的健康恢复提供参考依据。【方法】选取香农威纳指数、多样性指数、优势度、均匀度,分析福建省将乐林场栲树次生林乔木层的物种多样性,将多样性指数作为快速聚类因子,进行方差检验后划分林分不同干扰类型,分析不同林分类型的多样性和空间结构特征。【结果】1)将乐县栲树次生林与其顶级群落相比,其乔木层的物种多样性较小,未达顶级群落状态;2)经分析可将栲树次生林划分为3种干扰类型,即轻度干扰(类型Ⅰ),栲树占6成及以上;中度干扰(类型Ⅱ),栲树占3~5成;严重干扰(类型Ⅲ),栲树占2成及以下。3)不同干扰类型林分的香农威纳指数、多样性指数和均匀度大小排序为类型Ⅰ>类型Ⅱ>类型Ⅲ,优势度大小排序则相反;角尺度大小排序为类型Ⅰ(0.528 0)<类型Ⅱ(0.547 0)<类型Ⅲ(0.561 0),大小比数大小排序为类型Ⅰ(0.549 0)>类型Ⅱ(0.507 0)>类型Ⅲ(0.476 0),混交度大小排序为类型Ⅰ(0.840 0)>类型Ⅱ(0.740 0)>类型Ⅲ(0.600 0)。【结论】不同干扰类型栲树次生林的林木生长状态中庸,随着干扰程度的增加,其乔木层物种多样性指数降低,林分趋向于团状分布,混交度逐渐降低。
译  名：
Stand structure characteristics of Castanopsis fargesii secondary forest with different interference types
作  者：
DU Yan;LIU Dong-lan;ZHENG Xiao-xian;The Key Laboratory of State Forestry Administration for Forest Resources and Environmental Management, Beijing Forestry University;
关键词：
Castanopsis fargesii;;interference type;;species diversity;;uniform angle index;;neighbor-hood comparison;;mingling
摘  要：
【Objective】The interference types and spatial structures of Castanopsis fargesii secondary forest were studied to improve the restoration of the evergreen broad-leaved forests in south China.【Method】The Shannon-wiener index,diversity index,dominance index and evenness index were selected to analyze the species diversity of Castanopsis fargesii secondary forests in Jiangle forest farm,Fujian Province. Then the diversity indexes were used as the fast clustering factor to classify the interference types based on variance test.At last,the diversity and spatial structure of each type were analyzed.【Result】(1)Compared to its climax community,Castanopsis fargesii secondary forest in Jiangle forest farm had less diversity than the state of climax community.(2)Castanopsis fargesii secondary forest could be divided into three interference types:light interference(typeⅠ,≥60%),moderate interference(typeⅡ,30%-50%)and serious interference(typeⅢ,≤20%).(3)The Shannon-wiener indexes,diversity indexes and evenness indexes values of interference types were in a decreasing order of typeⅠ>typeⅡ>typeⅢ while the dominances were opposite.The uniform angle indexes were in an increasing order of typeⅠ(0.528 0)typeⅡ(0.507 0)>typeⅢ(0.476 0),and the mingling indexes were in a decreasing order of typeⅠ(0.840 0)>typeⅡ(0.740 0)>typeⅢ(0.600 0).【Conclusion】Castanopsis fargesii secondary forest with different interference types showed mild growth.As the increase of inference degree,the diversity index decreased,the forest tended to be union-like,and the mingling degree gradually reduced.

相似文章

导出引用
计量
文章访问数: 11
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46