母岩母质类型与坡位对湿地松林分生长的影响

对板页岩红壤和四纪红壤2种不同母质土壤和3种不同坡位上的湿地松林分进行调查与分析，结果表明:不同母质土壤的湿地松林分受坡位影响程度不同，但生长指标都一致呈现出下坡位＞中坡位＞上坡位的趋势;四纪红壤中，下坡位林分平均胸径分别高出上坡位、中坡位林分的10. 6%和4. 0%;板页岩红壤中，下坡位林分平均胸径高出上坡位林分的45. 6%，高出中坡位林分的22. 2%，差异达极显著(P＜0. 01)。总体上在不同母质土壤中生长的湿地松林分生长量差异显著，并且板页岩红壤湿地松林分坡位间生长量差异大，四纪红壤湿地松林分坡位间生长量差异较小。

An investigation and analysis were conducted on slash pine stands at three different slope positions on two soil types with distinct parent materials: slate-derived red soil and Quaternary red soil. The results demonstrated that the impacts of slope position on slash pine stands varied across soil parent materials, while all growth indices consistently exhibited the trend of downhill position > middle slope position > uphill position. For stands growing on Quaternary red soil, the average diameter at breast height (DBH) of downhill stands was 10.6% and 4.0% higher than those of uphill and middle slope stands, respectively. For stands on slate-derived red soil, the average DBH of downhill stands was 45.6% higher than that of uphill stands and 22.2% higher than that of middle slope stands, with highly significant differences (P < 0.01). Overall, significant differences in growth performance were observed among slash pine stands growing on soils of different parent materials. Furthermore, the disparities in growth among slope positions were more pronounced for stands on slate-derived red soil, whereas those on Quaternary red soil showed relatively minor differences in growth across slope positions.

搜集汇总

背景与挑战

背景概述

该数据集研究了母岩母质类型（板页岩红壤和四纪红壤）和坡位（上、中、下坡）对湿地松林分生长的影响，结果显示生长指标均呈现下坡位＞中坡位＞上坡位的趋势，且板页岩红壤中坡位间生长差异更显著。数据集属于国家重点研发计划项目'油松等速生建筑材林高效培育技术研究'，涵盖2017年至2021年的实验数据，以文档形式提供，侧重于林业科学中的植物生长影响因素分析。