摘要
湿地温室气体排放对区域乃至全球气候变化具有深远影响,人类活动对湿地土壤温室气体排放的影响仍缺乏系统研究。本研究旨在系统评估不同人类活动对湿地土壤温室气体排放的影响。研究发现:围垦改变了湿地土壤理化性质,影响碳库功能和温室气体排放;水产养殖模式的多样性对温室气体排放具有显著影响。采伐活动和火灾事件显著改变了森林湿地土壤温室气体排放模式;湿地排水造林改变了湿地的微地形和生态环境,引起温室气体排放量发生变化;高原湿地碳汇功能受围栏放牧影响较为突出。这些发现有助于深度理解人类活动在湿地碳循环中的作用,为湿地生态系统管理和保护提供理论支持。
The carbon source-sink function of wetlands exerts a profound influence on regional and even global climate change.The lack of systematic study on the impact of human activities on wetland soil greenhouse gas emissions still exists.This study is aimed at systematically assessing the effects of different human activities on soil greenhouse gas emissions in wetlands.The findings of the study indicated that reclamation alters the physical and chemical properties of wetland soil,influencing the carbon pool function and greenhouse gas emissions.The diversity of aquaculture patterns has a significant influence on greenhouse gas emissions.Logging activities and fire incidents significantly modify the soil greenhouse gas emission patterns in forested wetlands.Wetland drainage and afforestation change the microtopography and ecological environment of wetlands,resulting in variations in greenhouse gas emissions.The carbon sink function of plateau wetlands is prominently affected by fenced grazing.These discoveries contribute to a deeper understanding of the role of human disturbances in the carbon cycle of wetlands and provide theoretical support for the management and protection of wetland ecosystems.
作者
姚沛
肖国良
张欣桐
YAO Pei;XIAO Guo-liang;ZHANG Xin-tong(School of City and Regional Planning,Yancheng Teachers University,Yancheng 224007,Jiangsu,China;Jiangsu Key Laboratory for Bioresources of Saline Soils,Yancheng 224007,Jiangsu,China;Jiangsu Provincial Key Laboratory for Resources Environment Evolution and Intelligent Regulation of Coastal Zonen,Yancheng 224007,Jiangsu,China;School of Resources and Environment,Henan Polytechnic University,Jiaozuo 454003,Henan,China)
出处
《湿地科学与管理》
2025年第1期2-6,12,共6页
Wetland Science & Management
基金
江苏高校哲学社会科学研究一般项目(2024SJYB1484)
江苏省盐土生物资源研究重点实验室开放课题(JKLBS2019007)
盐城市重点研发计划(社会发展)项目(YCBE202242)。
关键词
人类活动
湿地
温室气体
碳氮循环
Human activities
Wetlands
Greenhouse gases
Carbon nitrogen cycle
