水土保持通报2023，Vol.43Issue(6)：25-30,39,7.DOI:10.13961/j.cnki.stbctb.2023.06.004
黄土丘陵区天然侧柏种群结构特征及生存状况
Population Structure Characteristics and Survival Status of Natural Platycladus Orientalis in Loess Hilly Region
摘要
Abstract
[Objective]Population structure characteristics and survival status of natural Platycladus orientalis in the loess hilly region were determined in order to provide a scientific basis for high-quality and sustainable development of forest grassland in this area.[Methods]Characteristics were quantitatively analyzed by using a dynamic change index based on a static life table combined with spectral analysis on the time scale and time series simulation prediction to carry out a comprehensive survival analysis of this cypress species.[Results]① The height,crown width,and diameter structure of the P.orientalis population indicated that young trees were abundant.② The survival curve of the P.orientalis population was close to Deevey-Ⅱ type,and the population was sensitive to external interference.③ Population dynamics were characterized by strong viability in the early stage,stable growth in the middle stage,and decline in viability in the later stage.Time series simulation and prediction analysis showed that the population of P.orientalis showed different degrees of increasing trend and strong growth recovery ability.[Conclusion]The natural population structure of P.orientalis in the loess hilly region was stable and growing,and the survival curve was close to that of Deevey-Ⅱ type.关键词
侧柏/种群结构/静态生命表/量化动态分析/生存分析/黄土丘陵区Key words
Platycladus orientalis/population structure/static life table/quantified dynamic analysis/survival analysis/loess hilly region分类
农业科技引用本文复制引用
孙婷,李钢铁,麻云霞,宋佳佳,郭靖捷,谷忠厚,刘坤,李治龙,李敏..黄土丘陵区天然侧柏种群结构特征及生存状况[J].水土保持通报,2023,43(6):25-30,39,7.基金项目
鄂尔多斯市科技重大专项"露采矿排土场高效植被建设关键技术研究与示范"(2022EEDSKJZDZX012) （2022EEDSKJZDZX012）
