摘要
本研究以鄱阳湖生态经济区为案例,系统探讨了土地整治对区域生态系统服务功能(ESV)的影响机制及优化策略。基于多源遥感数据、实地采样与模型模拟,揭示了退田还湖、高标准农田建设等整治工程对水源涵养、土壤固碳及生物多样性的差异化效应。结果显示,退田还湖显著提升水源涵养能力和生物多样性,但高强度农田整治导致土壤有机碳密度下降及面源污染加剧。建设用地扩张引发热岛效应和碳汇衰减(降至自然植被的28%)。研究提出分区调控、智能监测、生态补偿等优化策略,成果为协调土地整治与生态保护提供科学依据。
Taking Poyang Lake Ecological Economic Zone as a case study,this study systematically discussed the influence mechanism and optimization strategy of land consolidation on regional ecosystem service function(ESV).Based on multi-source remote sensing data,field sampling and model simulation,the differentiated effects of reclamation projects on water conservation,soil carbon sequestration and biodiversity were revealed.The results showed that returning farmland to lake significantly can improve water conservation capacity and biodiversity,but the high intensity farmland remediation will result in the decrease of soil organic carbon density and the intensification of non-point source pollution.The expansion of construction land can cause heat island effect and carbon sink attenuation(down to 28%of natural vegetation).Optimization strategies,such as zoning regulation,intelligent monitoring and ecological compensation,are proposed,and the results provide a scientific basis for coordinating land consolidation and ecological protection.
作者
郭家相
郭家瀚
GUO Jiaxiang;GUO Jiahan(Natural Resources Bureau of Shangyou County,City,Jiangxi Province,Ganzhou 341299,China;Ganzhou City Land and Space and Planning Research Center,Ganzhou 341400,China)
出处
《黑龙江国土资源》
2025年第3期30-36,共7页
Heilongjiang land and Resources
关键词
土地整治
生态系统服务价值
空间异质性
生态补偿
鄱阳湖生态经济区
land consolidation
ecosystem service value
spatial heterogeneity
ecological compensation
poyang lake ecological economic zone
