Dynamic Effects of Structure-Based Forest Management on Stand Spatial Structure in a Platycladus orientalis Plantation
Dynamic Effects of Structure-Based Forest Management on Stand Spatial Structure in a Platycladus orientalis Plantation
复制标题
结构性森林经营对侧柏人工林林分空间结构的动态影响
作者：
Lianjin Zhang;Huanying Feng;Manyi Du;Yue Wang;Guanghui Lai;Jia Guo
基于结构的森林经营是一种基于最近邻分析的改善森林结构和质量的方法。林分空间结构直接影响森林生态系统的健康与稳定。需要研究林分基质对林分空间结构参数分布的影响，为林分基质技术在林业中的进一步发展和实施提供科学依据。本研究在侧柏（Platycladus orientalis， L.）内建立了6个20 m × 20 m的永久样地。中国北京的佛朗哥种植园。研究了管理样地和对照样地林分空间结构参数（SSSPs）在造林前、造林后2年和7年3个时间点的变化。结果表明：森林保密林逐渐加速了东洋人工林向随机分布格局的发展，在2年内达到显著差异；林分对中、优势树生长均有促进作用，7年后林分与对照林差异显著。与对照组相比，它导致混合略有增加，尽管在处理之间没有观察到显著差异。SBFM总体上降低了不利微观结构（非随机分布的不利树木、低混合程度的不利树木和低混合程度的非随机分布的树木）的比例。提高了火炬（R2）与哑铃（R1）的比例，逐渐提高了人工林的稳定性。研究结果表明，林分调控优化了北京地区东方杉人工林的空间结构，有利于树木生长和林分生产力的提高。
Structure-based forest management (SBFM) is a method for improving forest structure and quality based on nearest-neighbor analysis. Stand spatial structure directly affects the health and stability of forest ecosystems. Research on the effects of SBFM on the distribution of spatial structure parameters is needed to provide a scientific basis for further development and implementation of SBFM technology in forestry. The present study was conducted on six permanent plots (20 m × 20 m) established within a Platycladus orientalis (L.) Franco plantation in Beijing, China. Changes in stand spatial structure parameters (SSSPs) were evaluated in managed and control plots at three time points: before SBFM and after 2 and 7 years of SBFM. The results showed that SBFM gradually accelerated the development of the P. orientalis plantation toward a random distribution pattern, reaching a significant difference within 2 years. SBFM promoted the growth of medium and dominant trees, with a significant difference between SBFM and control stands after 7 years. It led to a slight increase in mingling compared to the control, although no significant differences were observed between treatments. SBFM generally decreased the proportions of disadvantageous microstructures (disadvantaged trees with non-randomly distributed, disadvantaged trees with a low degree of mingling, and non-randomly distributed trees with a low degree of mingling). It also improved the ratio of torch (R2) units to dumbbell (R1) units, gradually improving the stability of the plantation forest. The results of this study suggest that SBFM optimized the spatial structure of a P. orientalis plantation in Beijing, China, and was conducive to tree growth and forest stand productivity.
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DOI：
10.4236/oje.2021.113020
发表时间：
2021-02
期刊：
Open Journal of Ecology
影响因子：
--
作者：
Wenhui Li;Xiyu Zhao;Ji Bian;Ruiqiang Liu;Ru-feng Ni
通讯作者：
Wenhui Li;Xiyu Zhao;Ji Bian;Ruiqiang Liu;Ru-feng Ni
望远镜法表征小龙山松栎混交林空间结构
影响因子：
1.8
作者：
Zhang Ganggang;Hui Gangying;Zhang Gongqiao;Zhao Zhonghua;Hu Yanbo
通讯作者：
Hu Yanbo
影响因子：
3.7
作者：
A. Pommerening;A. S. Meador
通讯作者：
A. Pommerening;A. S. Meador
影响因子：
1.4
作者：
G. Hui;Xiu-hai Zhao;Zhonghua Zhao;K. Gadow
通讯作者：
G. Hui;Xiu-hai Zhao;Zhonghua Zhao;K. Gadow
中国北方侧柏茎半径日变化和季节变化的环境控制
影响因子：
2.9
作者：
Dong, Manyu;Wang, Bingqin;Ding, Xinyuan
通讯作者：
Ding, Xinyuan