文献类型：期刊文献

英文题名：Spatial Structure Dynamics and Maintenance of a Natural Mixed Forest

作者：Zhou, Chaofan[1,2] Liu, Di[1] Chen, Keyi[3] Hu, Xuefan[4] Lei, Xiangdong[1] Feng, Linyan[1] Zhang, Yuchao[5] Zhang, Huiru[1,6]

第一作者：Zhou, Chaofan

通信作者：Zhang, HR[1];Zhang, HR[2]

机构：[1]Chinese Acad Forestry, Inst Forest Resource Informat Tech, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Ecol & Nat Conservat Inst, Beijing 100091, Peoples R China;[3]Chinese Acad Forestry, Res Inst Forestry Policy & Informat, Beijing 100091, Peoples R China;[4]Beijing Inst Landscape Architecture, Beijing 100102, Peoples R China;[5]Natl Forestry & Grassland Adm, Acad Inventory & Planning, Beijing 100714, Peoples R China;[6]Chinese Acad Forestry, Expt Ctr Forestry North China, Beijing 102300, Peoples R China

年份：2022

卷号：13

期号：6

外文期刊名：FORESTS

收录：;EI(收录号：20222512249714);Scopus(收录号：2-s2.0-85132114635);WOS:【SCI-EXPANDED(收录号:WOS:000816219800001)】；

基金：This research was funded by the Thirteenth Five-year Plan Pioneering project of the High Technology Plan of the National Department of Technology (No.2017YFC0504101).

语种：英文

外文关键词：spatial structure parameters; dynamic changes; the Sankey diagram; mortality process; recruitment process; natural mixed forests

摘要：Spatial structure dynamics play a major role in understanding the mechanisms of forest structure and biodiversity formation. Recently, researches on the spatial structure dynamics utilizing multi-period data have been published. However, these studies only focused on comparative analyses of the spatial structure of multi-period living trees, without an in-depth analysis of the change processes. In this study, we propose a new comprehensive analysis method for dynamic change of the spatial structure at the individual level, which includes three processes (living trees' flow, mortality process and recruitment process) that have not been considered in previous researches. Four spatial structural parameters (SSSPs, Uniform angle index, Mingling, Dominance and Crowding) and a natural spruce-fir-broadleaf mixed forest with two-phase data were taken as an example to find out the laws of the spatial structure dynamics. All types of dynamic change were named and their proportions were analyzed. The proportion of changes in the SSSPs of individuals was relatively high, even though the mean values of the stand did not change considerably. The five values (0, 0.25, 0.5, 0.75, 1) of the SSSPs are in mutual flow, and the flows are typically one-step, with three-steps and four-steps changes being uncommon. The processes of mortality and recruitment have a higher influence on the spatial structure than the flow of living trees. The dynamic change of spatial structure analysis method created in this study can capture more features not discovered in earlier approaches, as well as guiding forest management in some ways. Understanding the nuances of these changes is a critical part of reasonable spatial structure and biodiversity maintenance, and should be the focus of future research efforts.