文献类型：期刊文献

中文题名：速生纯林混交化改造对人工林生态系统的影响

英文题名：Impact of Converting Fast-growing Pure Forests to Mixed Forests on Plantation Ecosystem

作者：刘津勇[1,2] 朱光玉[2] 王志超[1] 竹万宽[1] 黄润霞[1] 许宇星[1]

第一作者：刘津勇

机构：[1]中国林业科学研究院速生树木研究所,广东湛江524022;[2]中南林业科技大学林学院,长沙410004

年份：2025

卷号：38

期号：5

起止页码：25-32

中文期刊名：世界林业研究

外文期刊名：World Forestry Research

收录：;北大核心:【北大核心2023】；

基金：“十四五”国家重点研发计划子课题“桉树与珍贵经济/乡土树种复合经营技术研究”(2023YFD2201005-1);广西重点研发计划“桉树人工林与桉木主要林产品碳储量计量研究”(桂科AB23026010)

语种：中文

中文关键词：混交林;土壤养分;微生物群落;化学计量;生物多样性

外文关键词：mixed forest;soil nutrient;microbial community;stoichiometry;biodiversity

分类号：S725.2;S718.5

摘要：近年来,速生树种纯林多代连栽的经营模式引发土壤肥力退化、生物多样性降低和病虫害频发等一系列生态问题。相比之下,混交林具有更为复杂的林分结构,对植物群落组成、微生物群落多样性和养分循环过程均表现出显著的积极影响,探究速生纯林混交模式对人工林生态系统的影响及其内在机制,对缓解纯林连栽带来的生态风险具有重要意义。文中综述速生纯林混交模式对人工林生态系统的影响,重点探讨碳固存、土壤养分有效性、土壤微生物群落、生物多样性和生物量对混交模式的响应机制,并提出人工林生态系统对混交差异性响应的机制、混交林分的长期效应以及动态变化、建立健全多目标评价体系3个重点研究方向,以科学评估人工林的生态、经济与社会效益。
In recent years,multiple-generation successive monoculture of fast-growing plantations has exacerbated ecological problems,such as soil fertility decline,biodiversity loss,and frequent pest and disease incidences.In contrast,mixed forests exhibit more complex stand structure and have substantially positive impacts on plant community diversity,microbial community structure,and nutrient cycling.Therefore,the study of the impacts of mixed forest establishment from monocultures on its ecosystem processes and their working mechanism is crucial for solving the problems caused by monocultures.There is lack of systematic review of the impacts due to the complexity of biotic and environmental interactions.This review synthesizes the impacts,explores the mechanisms governing carbon sequestration,soil nutrients,microbial communities,soil-microbial stoichiometry,and biodiversity,and discusses the future research on mixed-species plantation.Three key research priorities are identified,including mechanisms behind varied response of plantation ecosystem to mixing,temporal dynamics of mixing effects,and multi-objective evaluation systems for plantation benefits.