浙江湿地类型变化局地温室效应遥感评估  

作　　者：曾媛 王永青 梁立成 张乾 单楠 张小伟[4] 

机构地区：[1]浙江省林业勘测规划设计有限公司,杭州310020 [2]南京工业大学测绘科学与技术学院,南京211800 [3]生态环境部南京环境科学研究所,南京210042 [4]浙江省森林资源监测中心,杭州310020

出　　处：《科技创新与应用》2025年第7期71-76,共6页Technology Innovation and Application

基　　金：国家自然科学基金(42107004);江苏省基础研究计划自然科学基金-碳达峰碳中和科技创新专项(BK20220021)。

摘　　要：素有“地球之肾”之称的湿地生态系统,是地球上关键的碳汇存储地,其在气候调节方面有着重要的作用,但现在面临湿地面积减少和功能退化的问题。而湿地的变化进一步导致温室气体排放增加,加剧局地温室效应。以浙江省为研究区,使用Landsat OLI和OLI-2系列影像,进行湿地监督分类,提取湿地类型变化结果,并定量评价湿地生态系统演变过程中主要温室气体(包括甲烷、二氧化碳和氧化亚氮)的排放特征和变化。发现天然湿地转化为人工湿地后,其固碳能力明显下降,温室气体排放增加。结果表明,湿地类型改变与温室气体排放有紧密关联,进而导致局部温室效应的增强,再进一步对气候变化造成影响。该研究的发现为湿地保护、土地利用规划和温室气体排放控制提供一定的科学依据。The wetland ecosystem,known as the"kidney of the earth",is a key carbon sink storage site on the earth and plays an important role in climate regulation.However,it is now facing the problem of reduced wetland area and functional degradation.Changes in wetlands have further led to an increase in greenhouse gas emissions and intensified the local greenhouse effect.Taking Zhejiang Province as the study area,Landsat OLI and OLI-2 series images were used to conduct wetland supervision and classification,extract wetland type change results,and quantitatively evaluate the emission characteristics and changes of major greenhouse gases(including methane,carbon dioxide and nitrous oxide)during the evolution of wetland ecosystems.It was found that after natural wetlands were transformed into artificial wetlands,their carbon sequestration capacity significantly decreased and greenhouse gas emissions increased.The results show that changes in wetland types are closely related to greenhouse gas emissions,which in turn leads to an enhancement of the local greenhouse effect,which in turn further affects climate change.The findings of this study provide certain scientific basis for wetland protection,land use planning and greenhouse gas emission control.

关 键 词：遥感 湿地 变化检测 浙江省 驱动力分析 温室气体 温室效应 

分 类 号：X87[环境科学与工程—环境工程]