Methods and prospects for the construction and optimization of protected area connectivity network
Global protected areas have been widely recognized for their conservation effectiveness,but are still facing problems such as insufficient coverage,ecosystem representation and species protected progress.At the same time,most of the protected areas are small,poorly connected and threatened by climate change and human activities.This highlights the urgent need to systematically improve the stability and conservation effectiveness of protected areas through the expansion and connectivity management of protected areas.Although some studies have tried to realize the connectivity of protected areas through ecological corridors,a unified concept has not been proposed,and a general consensus of the construction and optimization framework is lacking.Through a systematic review of relevant studies,the definition and classification system of protected area connectivity network,as well as the construction and optimization framework are put forward.According to the conservation objectives,protected area connectivity network can be divided into three categories,namely biological migration network,structural stability network and climate connectivity network.Different methods can be used to construct and optimize protected area connectivity network according to the framework of"expansion and optimization of protected areas-construction of landscape resistance surface-extraction of ecological corridors-connectivity network optimization".Current research focuses on constructing short-term effective network from a static perspective,emphasizing direct ecological benefits while ignoring conservation input and social value.In future research,dynamic connectivity network should be constructed from a dynamic perspective based on long time series data.The long-term effectiveness of the connectivity network should be safeguarded against the future threats of land use change and climate change.The optimal scheme of connectivity network construction and optimization should be determined based on cost-benefit analysis,considering the trade-off of different conservation objectives and social development.Finally,the social added value of the connectivity network should be enhanced to gain more support.
protected area connectivity networkecological corridorbiological migrationstructural stabilityclimate connectivity
万方数据
维普
