品种、密度及造林模式对南方低山丘陵区泡桐幼林生长的影响

为了筛选出最适宜南方低山丘陵区种植的泡桐品种及最佳造林技术，在湖北省京山市虎爪山林场采用品种、密度、造林模式等三因素试验设计研究不同品种、密度、造林模式及其互作效应对泡桐幼林生长的影响。结果表明：不同造林密度、造林模式、品种及其互作效应对泡桐胸径、树高、单株材积生长均有显著影响，其中品种对泡桐生长量影响最大，均存在极显著差异；在较小的造林密度下，随造林密度增大，泡桐平均胸径、树高、单株材积及蓄积量均有所增加；宽行窄株造林模式下，泡桐平均胸径、树高、单株材积最大。

To screen Paulownia varieties most suitable for cultivation in southern low mountain and hilly regions and identify the optimal afforestation techniques, a three-factor experimental design covering variety, planting density and afforestation pattern was conducted at Huzhaoshan Forest Farm in Jingshan City, Hubei Province, to investigate the effects of different varieties, planting densities, afforestation patterns and their interactive effects on the growth of young Paulownia plantations. The results showed that varying planting densities, afforestation patterns, varieties and their interactive effects had significant impacts on the growth of Paulownia, including diameter at breast height (DBH), tree height and individual stem volume. Among these factors, variety exerted the greatest influence on Paulownia growth, with extremely significant differences observed in all growth indicators. Within the range of relatively low planting densities, the average DBH, tree height, individual stem volume and stand volume of Paulownia all increased with the increase of planting density. Under the wide-row and narrow-plant afforestation pattern, Paulownia achieved the maximum average DBH, tree height and individual stem volume.

搜集汇总

背景与挑战

背景概述

该数据集通过三因素试验设计，探究了品种、密度和造林模式对南方低山丘陵区泡桐幼林生长的影响，旨在筛选最优种植方案。研究发现，品种是影响生长的主要因素，在较小密度下增加密度可提升胸径、树高和材积，且宽行窄株造林模式效果最佳。