期刊论文

Nutrient input and output in short-rotation Eucalyptus plantations

中文

中南林业科技大学学报

1673-923X

2021

41

8

56-67

10.14067/j.cnki.1673-923x.2021.08.007

国家“十三五”重点研发计划项目（2016YFD0600505）；

本校为第一机构

【目的】桉树作为一种短轮伐期速生树种在我国广西等南方地区被广泛种植,单一树种连栽经营模式对林地土壤肥力质量产生重大影响,为探究当前短周期高强度连栽桉树人工林炼山经营模式是否可持续,拟对多代连栽桉树人工林的养分输入、输出特征进行研究。【方法】在4种不同代次的桉树人工林设置36个标准地,以胸径为自变量建立回归方程估算桉树人工林生物量;通过林地分等定级观测土壤肥力质量变化状况,运用冗余分析研究桉树养分含量和土壤各项指标之间的相关性;基于施肥量研究各代桉树人工林养分平衡状况。【结果】1)不同代次之间的桉树人工林生物量存在显著性差异,总体呈下降趋势,一代林至四代林的生...

【Objective】Eucalyptus is widely planted as a short-rotation, fast-growing species in southern areas of China, such as Guangxi. Single species continuous-planting model have a significant impact on the soil fertility quality in woodlands.In order to investigate the sustainability of the short-rotation, high-intensity succession Eucalyptus plantation management model,this paper intends to investigate the nutrient input and output characteristics of continuous-planting rotation of Eucalyptus plantations.【Method】Setting up 36 standard plots in ...