基于“以水而定”的生态系统健康提升潜力评价——以内蒙古察汗淖尔流域为例  

Evaluation of ecosystem health improvement potential based on“water-based”:taking the Chahannaoer basin of Inner Mongolia Autonomous Region as an example

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作  者:刘鑫 韩宇 李永红 李丽娟 刘焱序 LIU Xin;HAN Yu;LI Yonghong;LI Lijuan;LIU Yanxu(Inner Mongolia Institute of Geological Survey,Hohhot 010020,China;State Key Laboratory of Earth Surface Processes and Resource Ecology,Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China)

机构地区:[1]内蒙古自治区地质调查研究院,呼和浩特010020 [2]北京师范大学地理科学学部地表过程与资源生态国家重点实验室,北京100875

出  处:《生态学报》2025年第6期2868-2876,共9页Acta Ecologica Sinica

基  金:内蒙古自治区科技计划项目(2022YFHH0024)。

摘  要:水约束下的生态恢复是维持生态系统健康的关键性工作之一。基于彭曼-蒙特斯-勒宁(Penman-Monteith-Leuning,PML)模型和“活力-组织力-恢复力-生态系统服务”(Vigor-Organization-Resilience-Service,VORS)框架,从土地利用和植被双重条件评估和预测五种恢复情景下的内蒙古察汗淖尔流域生态系统健康的时空特征,探究人类活动较弱的SSP126情景和人类活动强烈的SSP545下乡镇尺度生态系统健康提升潜力。研究结果表明:(1)植被恢复对活力和生态系统服务有较强的正向作用,人类活动较弱的土地利用恢复对组织力影响不大。(2)植被恢复对生态系统健康的积极影响大于土地利用恢复,人类活动越强烈对生态系统健康的消极作用越大;土地利用恢复-植被不恢复-SSP126情景和土地利用恢复-植被不恢复-SSP545情景两种情景下分别增加3km^(2)和2km^(2)生态系统健康良的斑块面积。(3)土地利用不恢复-植被恢复情景对生态系统健康促进作用更大。生态系统健康提升高潜力乡镇主要分布在研究区西部和南部,北部和东部提升潜力低。基于“以水而定”的生态系统健康潜力评价结果可为研究区未来生态恢复选址提供参考。Ecological restoration under water constraints is one of the key tasks to maintain ecosystem health.This study is based on the Penman-Monteith-Leuning(PML)model and the“Vitality-Organization-Resilience-Ecosystem Services”framework to evaluate and predict the spatiotemporal characteristics of ecosystem health in the Chahannaoer basin within the Inner Mongolia Autonomous Region watershed.It examines five restoration scenarios by restorations of both land use and vegetation,and explore potential for improving the health of township-scale ecosystems under SSP126 and SSP545 scenarios for different human activity intensity.The results showed that:(1)Land use restoration with minimal human interference exerts negligible impact on organizational force,whereas vegetation restoration significantly bolsters vitality and ecosystem services.(2)Vegetation restoration has a greater positive impact on ecosystem health.The more intense human activities,the greater the negative impact on ecosystem health.The land use restoration-vegetation is non-restoration-SSP126 scenario and land use restoration-vegetation non-restoration-SSP545 scenario increases the patch area of good ecosystem health by 3km^(2)and 2km^(2)respectively.(3)Land use non-restoration-vegetation restoration scenario has a greater effect on promoting ecosystem health.Townships with high potential for improving ecosystem health are mainly located in the west and south of the study area,while the north and east exhibit lower potential for such improvement.The evaluation results of ecosystem health potential based on“water-based”can provide reference for future ecological restoration site selection in the study area.

关 键 词:生态系统健康 以水而定 旱区 彭曼-蒙特斯-勒宁(Penman-Monteith-Leuning PML)模型 活力-组织力-恢复力-生态系统服务(Vigor-Organization-Resilience-Service VORS)模型 

分 类 号:F30[经济管理—产业经济]

 

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