文献类型：期刊文献

中文题名：基于杉木退化人工林碳储量、生产力及其碳汇经济的阔叶树种选择研究

英文题名：Selections of Broad-leaved Tree Species Planting in Chinese Fir Degraded Plantation Forests:Based on Carbon Stock,Productivity and Carbon-sink Economy

作者：付志高[1] 李芬好[2] 肖以华[1] 朱火生[2] 许涵[1] 王焱[3] 贲春丽[1]

第一作者：付志高

机构：[1]中国林业科学研究院热带林业研究所,广东广州510520;[2]乐昌市林业局,广东乐昌510200;[3]江西农业大学林学院,江西南昌330006

年份：2024

卷号：37

期号：6

起止页码：93-103

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2023】；CSCD:【CSCD2023_2024】；

基金：国家重点研发计划项目(2022YFF1303003-06);林业生态网络监测平台生态监测数据采集(JY270);广东省林木种质资源调查(SL00102);广东珠江三角洲森林生态系统国家定位观测研究站项目(0144135)。

语种：中文

中文关键词：杉木;人工林退化;碳储量;生产力;碳汇经济价值

外文关键词：Cunninghamia lanceolata;Degraded plantation forests;Carbon stock;Forest productivity;Economic value of carbon sinks

分类号：S718.55

摘要：[目的]杉木的纯林连续栽培导致土壤退化和生产力降低。阔叶树与杉木混交可以提升立地质量和林分生产力。本研究旨在探究不同阔叶树种与杉木混交模式下的碳储量、生产力和碳汇经济价值,为区域退化杉木人工林改造和高效碳汇林建设的树种选择提供技术支持。[方法]选取了2004年种植的10种不同阔叶树种与杉木混交的造林林分,研究了不同混交模式下林分碳储量、生产力和碳汇经济价值的差异。[结果]表明:(1)10种阔叶树种的胸径(6.5~21.3 cm)、树高(8.0~22.6 m)和密度降幅(750~3119株·hm^(-2))均存在显著的差异,且均是米老排的值最大,且极显著高于深山含笑(p<0.01)。此外,大径木的比例最高的亦是米老排,其余9种树种则以中径木为主。(2)不同林分的干、枝、叶、根和总生物量分别为56.54~140.69t·hm^(-2)、13.22~43.97 t·hm^(-2)、2.72~9.17 t·hm^(-2)、3.22~80.35 t·hm^(-2)、82.78~274.18 t·hm^(-2),且均呈现显著的差异(p<0.01),这5种生物量指标中,最大的树种均是米老排,但最小树种不同,阴香的干、叶和总生物量最小,而枝和根生物量最小的分别是观光木和红锥。(3)10种树种的碳储量、生产力和碳汇经济价值分别为15.43~136.66 t·hm^(-2)、1.62~14.38 t·hm^(-2)·a^(-1)和0.18~2.39万元·hm^(-2)。碳储量表现为米老排极显著高于观光木和深山含笑(p<0.01)。生产力米老排极显著高于除木荷以外的其余树种(p<0.01),碳汇经济价值则是米老排极显著高于除木荷和枫香以外的其余树种(p<0.01)。[结论]在粤北地区退化杉木人工林改造中,建议优先选择米老排、木荷和枫香作为高效碳汇林的树种选项;而对于大径材林培育,则建议优先选择米老排、乐昌含笑、阴香和红锥。
[Objective]Continuous cultivation of pure Chinese fir(Cunninghamia lanceolata)leads to soil degradation and reduced productivity.Mixed planting broad-leaed trees with Chinese fir can improve stand quality and productivity.This study aimed to investigate the carbon stock,productivity,and economic value of carbon sinks under the mixed mode of different broadleaf species and Chinese fir,as well as to provide technical support for the selection of broad-leaved tree species for high-efficiency carbon sink forests construction of degraded Chinese fir plantation forestsin south China.[Method]In this study,10 stands of different broadleaf species mixed with Chiense fir,planted in 2004,were utilized to study the differences in carbon stocks,productivity,and economic value of carbon sinks of the stands under different mixing patterns.[Result]The results showed that:(1)Significant differences were detected in the diameter at breast height(6.5~21.3 cm),tree height(8.0~22.6 m),and stand density reduction(750~3119 plant·hm^(-2))among 10 broad-leaved species.Mytilaria laosensis had the highest values,which were significantly higher than Michelia maudiae(p<0.01).Furthermore,the Mytilaria laosensis had the largest proportion of large-diameter trees,whereas the remaining 9 species were primarily medium-diameter.(2)The stem,branch,leaf,root,and total biomass of different stands ranged from 56.54 to 140.69,13.22 to 43.97,2.72 to 9.17,3.22 to 80.35,and 82.78 to 274.18 t·hm^(-2),respectively,and all showed significant differences(p<0.01).Among these five biomass indicators,the largest tree species were Mytilaria laosensis,while the smallest tree species were different.Cinnamomum burmanni had the smallest biomass of stem,leaf,and total biomass,whereas Michelia odora and Castanopsis hystrix had the smallest biomass of branch and root,respectively.(3)The carbon stocks,productivity and economic value of carbon sinks of the 10 tree species varied from 15.43 to 136.66 t·hm^(-2),1.62 to 14.38 t·hm^(-2)·a^(-1),and 0.18 to 23.9 million yuan·hm^(-2),respectively.Carbon stocks were substantially greater in Mytilaria laosensis,compared with Michelia odora and Michelia maudiae(p<0.01).The productivity of Mytilaria laosensis was significantly higher than that of the other tree species,except for Schima superba(p<0.01).Additionally,the economic value of carbon sink was significantly higher for Mytilaria laosensis compared with the other tree species,except for Schima superba and Liquidambar formosana(p<0.01).[Conclusion]In summary,in the transformation of degraded Chinese fir plantation forests in northern Guangdong,it is recommended to prioritize the selections of Mytilaria laosensis,Schima superba,and Liquidambar formosana as tree species for high-efficiency carbon sink forests,whereas when cultivating large-diameter timber forests,it is recommended to prioritize the selections of Mytilaria laosensis,Michelia chapensis,Cinnamomum burmanni,and Castanopsis hystrix.