基于生态功能分区的广东省植被净初级生产力变化特征研究  

Change characteristics of vegetation net primary production at Guangdong Province based on ecological function division

作　　者：庄伟 严明 伦见强 彭叶棉 吕逵弟 涂家财 ZHUANG Wei;YAN Ming;LUN Jian-qiang;PENG Ye-mian;LV Kui-di;TU Jia-cai(Guangdong Institute of Engineering Technology Research Co.,Ltd.,Guangzhou 510440,China;Guangdong Engineering Technology Research Center for Upgrading and Efficiency of Sewage Treatment and Resource Utilization,Guangzhou 510440,China;Guangdong Green Product Certification Testing Center Co.,Ltd.,Guangzhou 510440,China)

机构地区：[1]广东省工程技术研究所有限公司,广东广州510440 [2]广东省污水处理提标增效及资源利用工程技术研究中心,广东广州510440 [3]广东省绿色产品认证检测中心有限公司,广东广州510440

出　　处：《环境生态学》2024年第4期131-137,共7页Environmental Ecology

摘　　要：开展植被净初级生产力(Net Primary Production,NPP)动态研究,是评估广东省植被碳汇、生态修复效果的需要。根据广东省生态功能区划,本研究采用线性倾向估计分析2001—2022年广东省植被NPP变化趋势,得到以下主要结论:1)南岭区E1和粤中区E2植被NPP多年平均值在1000 gC/(m^(2)·a)以上,成为南岭生态屏障和粤港澳大湾区外围丘陵浅山生态屏障的主体;2)珠三角区E4植被NPP多年平均值在各生态功能分区中最低[491.51 gC/(m^(2)·a)],依赖周边E1和E2生态区为其提供生态系统服务;3)全省植被NPP呈总体增长趋势,粤西区E5植被NPP连片增长最为显著;4)林地恢复对全省植被NPP增长贡献大。一系列生态工程的开展,将为弥补珠三角生态欠账、筑牢粤北生态屏障、实现“双碳”目标发挥积极作用。Conducting research on Net Primary Production(NPP)dynamics of vegetation in Guangdong Province is helpful for evaluating the vegetation carbon sink and effectiveness of ecological restoration.Based on the ecological function division of Guangdong Province,linear trend estimation was used to evaluate the change trend of vegetation NPP in Guangdong Province from 2001 to 2022.The main conclusions are as follows:1)With the annual average NPP of more than 1000 gC/(m^(2)·a),Nanling Mountain eco-region(E1)and Central Guangdong eco-region(E2)become the main body of the ecological barrier of the Nanling Mountain and the ecological barrier of hills and shallow mountains around the Guangdong Hong Kong Macao Greater Bay Area;2)The Pearl River Delta eco-region(E4)has the lowest of annual vegetation NPP[491.51 gC/(m^(2)·a)]among all ecological zones,and thus relies on the surrounding E1 and E2 eco-regions to provide ecological service supply;3)The vegetation NPP show an overall growing trend in the whole province and show the most significant growing trend at Western Guangdong eco-region;4)The restoration of forest land has made a significant contribution to the growth of vegetation NPP in the province.A series of ecological restoration projects carried out in Guangdong Province will play a positive role in compensating for ecological debts in the Pearl River Delta,building a strong ecological barrier in Northern Guangdong,and achieving the dual carbon goal.

关 键 词：净初级生产力 趋势分析 生态功能分区 土地利用类型 时空分布 

分 类 号：Q948.1[生物学—植物学]