海南岛橡胶林不同复合经营模式碳密度和固碳潜力  

Carbon density and carbon sequestration potential of rubber plantations under different compound management patterns in Hainan Island

作　　者：于磊 陆问 宋佩鸿 杨秋[1] 杨怀 刘文杰[1] 栾军伟 刘世荣[3] YU Lei;LU Wen;SONG Peihong;YANG Qiu;YANG Huai;LIU Wenjie;LUAN Junwei;LIU Shirong(College of Ecology,Hainan University,Haikou 570228,China;Institute of Tropical Bamboo,Rattan&Flower,Sanya Research Base,International Center for Bamboo and Rattan,Sanya 572000,Hainan,China;Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration,Ecology and Nature Conservation Institute,Chinese Academy of Forestry,Beijing 100091,China)

机构地区：[1]海南大学生态学院,海口570228 [2]国际竹藤中心三亚研究基地热带竹藤花卉研究所,海南三亚572000 [3]国家林业和草原局森林生态环境重点实验室,中国林业科学院研究所森林生态环境与自然保护研究所,北京100091

出　　处：《生态学杂志》2025年第4期1097-1103,共7页Chinese Journal of Ecology

基　　金：十四五国家重点研发计划项目(2021YFD2200405)资助。

摘　　要：围绕海南岛橡胶林急需改造的重大需求,进一步提高橡胶林复合经营模式生态系统的碳密度,选取橡胶(Hevea brasiliensis)+火力楠(Michelia macclurei)、橡胶+益智(Alpinia oxyphylla)、橡胶+草豆蔻(Alpinia katsumadai)、橡胶+斑斓(Pandanus amaryllifolius)、橡胶+可可(Theobroma cacao)、橡胶+咖啡(Coffea arabica)、橡胶+肉桂(Cinnamomum cassia)等海南岛7种典型橡胶林复合经营模式为研究对象,通过分析植被、凋落物和土壤碳密度,对橡胶林不同复合经营模式生态系统碳密度进行了估算。结果表明:(1)相比橡胶纯林,儋州和文昌地区橡胶林复合经营模式生态系统碳密度显著提高。(2)儋州地区橡胶林复合经营模式生态系统碳密度从高到低分别为:橡胶+肉桂模式(213.3±9.45 t·hm^(-2),固碳潜力为19.73 t·hm^(-2));橡胶+益智模式(201.51±15.29 t·hm^(-2),固碳潜力为7.94 t·hm^(-2))、橡胶+斑斓模式(200.37±9.60 t·hm^(-2),固碳潜力为6.80 t·hm^(-2))和橡胶+咖啡模式(199.23±8.46 t·hm^(-2),固碳潜力为5.66 t·hm^(-2))。(3)文昌地区橡胶林复合经营模式生态系统碳密度显著提高,其模式为:橡胶+火力楠模式(198.07±18.37 t·hm^(-2),固碳潜力为38.76 t·hm^(-2))。这可为热带地区橡胶林改造和复合经营模式固碳增汇提供理论依据和技术支持。Addressing the urgent need to transform rubber plantations pattern in Hainan Island and solve the problem of enhancing ecosystem carbon density in rubber plantations under compound management patterns,seven typical compound management patterns of rubber plantations in Hainan Island were selected as research objects,including Hevea brasiliensis+Michelia macclurei,Hevea brasiliensis+Alpinia oxyphylla,Hevea brasiliensis+Alpinia katsumadai,Hevea brasiliensis+Pandanus amaryllifolius,Hevea brasiliensis+Theobroma cacao,Hevea brasiliensis+Coffea arabica,and Hevea brasiliensis+Cinnamomum cassia.The results showed that:(1)Compared with pure rubber plantations,ecosystem carbon density of rubber plantations under compound management patterns in Danzhou and Wenchang were significantly increased.(2)In Danzhou,ecosystem carbon density under compound management patterns followed the order of Hevea brasiliensis+Cinnamomum cassia pattern(213.3±9.45 t·hm^(-2),with a carbon sequestration potential of 19.73 t·hm^(-2));Hevea brasiliensis+Alpinia oxyphylla pattern(201.51±15.29 t·hm^(-2),with a carbon sequestration potential of 7.94 t·hm^(-2)),Hevea brasiliensis+Pandanus amaryllifolius pattern(200.37±9.60 t·hm^(-2),with a carbon sequestration potential of 6.80 t·hm^(-2)),and Hevea brasiliensis+Coffea arabica pattern(199.23±8.46 t·hm^(-2),with a carbon sequestration potential of 5.66 t·hm^(-2)).(3)In Wenchang,ecosystem carbon density of rubber plantations under the Hevea brasiliensis+Michelia macclurei pattern was significantly increased(198.07±18.37 t·hm^(-2),with a carbon sequestration potential of 38.76 t·hm^(-2)).These results provide a theoretical basis and technical support for forest transformation and carbon sequestration of rubber plantations under compound management patterns in tropical areas.

关 键 词：橡胶林复合经营模式 生态系统碳密度 土壤有机碳密度 固碳潜力 海南岛 

分 类 号：S794.1[农业科学—林木遗传育种]