Investigating the ecological impact of land use change in the context of the construction of national water network project is crucial,as it is imperative for achieving the sustainable development goals of the nationa...Investigating the ecological impact of land use change in the context of the construction of national water network project is crucial,as it is imperative for achieving the sustainable development goals of the national water network and guaranteeing regional ecological stability.Using the Danjiangkou Reservoir Area(DRA),China as the study area,this paper first examined the spatiotemporal dynamics of natural landscape patterns and ecosystem service values(ESV)in the DRA from 2000 to 2018 and then investigated the spatial clustering characteristics of the ESV using spatial statistical analysis tools.Finally,the patch-generating land use simulation(PLUS)model was used to simulate the natural landscape and future changes in the ESV of the DRA from 2018 to 2028 under four different development scenarios:business as usual(BAU),economic development(ED),ecological protection(EP),and shoreline protection(SP).The results show that:during 2000-2018,the construction of water facilities had a significant impact on regional land use/land cover(LULC)change,with a 24830 ha increase in watershed area.ESV exhibited an increasing trend,with a significant and growing spatial clustering effect.The transformation of farmland to water bodies led to accelerated ESV growth,while the transformation of forest land to farmland led to a decrease in the ESV.Normalized difference vegetation index(NDVI)had the strongest effect on the ESV.ESV exhibited a continuous increase from 2018 to 2028 under all the simulation scenarios.The EP scenario had the greatest increase in ESV,while the ED scenario had the smallest increase.The findings suggest that projected land use patterns under different scenarios have varied impacts on ecosystem services(ESs)and that the management and planning of the DRA should balance social,economic,ecological,and security benefits.nomic,ecological,and security benefits.展开更多
实物资源是国家生态系统观测研究网络(Chinese National Ecosystem Research Network,CNERN)的宝贵财富,对于开展联网观测、实验、研究具有广泛的用途及重大的价值。研究CNERN实物资源服务的相关问题,探索运行服务阶段CNERN实物资源服...实物资源是国家生态系统观测研究网络(Chinese National Ecosystem Research Network,CNERN)的宝贵财富,对于开展联网观测、实验、研究具有广泛的用途及重大的价值。研究CNERN实物资源服务的相关问题,探索运行服务阶段CNERN实物资源服务的模式,对实现实物资源服务从服务科研创新向全面服务科技、经济和社会发展转变具有重要的理论价值和现实意义。探讨CNERN实物资源服务的内涵、特点、服务内容,并提出基于线上线下融合的实物资源服务模式,为"国家生态系统研究网络科技资源服务系统"的实物资源服务子系统的设计、开发提供理论基础和应用模式,也期望为相关部门开展实物资源服务提供参考。展开更多
国家生态系统观测研究网络(National Ecosystam Research Network of China,CNERN)平台的数据资源管理与服务模式与开放式电子商务平台架构存在很大的相似性,CNERN基于B2B2C电子商务模式构建了数据资源管理与服务信息平台,有助于改善资...国家生态系统观测研究网络(National Ecosystam Research Network of China,CNERN)平台的数据资源管理与服务模式与开放式电子商务平台架构存在很大的相似性,CNERN基于B2B2C电子商务模式构建了数据资源管理与服务信息平台,有助于改善资源使用者访问和获取数据资源的体验,改进资源提供者进行数据资源管理及数据资源服务的效率。本文分析了数据资源特点,介绍了数据资源内容,详细分析了信息平台架构、系统组成与功能,介绍了CNERN信息平台如何对多方异地管理、异构存储、不同开放服务方式的数据资源进行类似电子商务模式的规范化管理及自动化服务的整体解决方案。展开更多
基金Under the auspices of National Natural Science Foundation of China(No.42371315,41901213)Natural Science Foundation of Hubei Province(No.2020CFB856)Project of Changjiang Survey,Planning,Design and Research Co.,Ltd(No.CX2022Z23)。
文摘Investigating the ecological impact of land use change in the context of the construction of national water network project is crucial,as it is imperative for achieving the sustainable development goals of the national water network and guaranteeing regional ecological stability.Using the Danjiangkou Reservoir Area(DRA),China as the study area,this paper first examined the spatiotemporal dynamics of natural landscape patterns and ecosystem service values(ESV)in the DRA from 2000 to 2018 and then investigated the spatial clustering characteristics of the ESV using spatial statistical analysis tools.Finally,the patch-generating land use simulation(PLUS)model was used to simulate the natural landscape and future changes in the ESV of the DRA from 2018 to 2028 under four different development scenarios:business as usual(BAU),economic development(ED),ecological protection(EP),and shoreline protection(SP).The results show that:during 2000-2018,the construction of water facilities had a significant impact on regional land use/land cover(LULC)change,with a 24830 ha increase in watershed area.ESV exhibited an increasing trend,with a significant and growing spatial clustering effect.The transformation of farmland to water bodies led to accelerated ESV growth,while the transformation of forest land to farmland led to a decrease in the ESV.Normalized difference vegetation index(NDVI)had the strongest effect on the ESV.ESV exhibited a continuous increase from 2018 to 2028 under all the simulation scenarios.The EP scenario had the greatest increase in ESV,while the ED scenario had the smallest increase.The findings suggest that projected land use patterns under different scenarios have varied impacts on ecosystem services(ESs)and that the management and planning of the DRA should balance social,economic,ecological,and security benefits.nomic,ecological,and security benefits.
文摘实物资源是国家生态系统观测研究网络(Chinese National Ecosystem Research Network,CNERN)的宝贵财富,对于开展联网观测、实验、研究具有广泛的用途及重大的价值。研究CNERN实物资源服务的相关问题,探索运行服务阶段CNERN实物资源服务的模式,对实现实物资源服务从服务科研创新向全面服务科技、经济和社会发展转变具有重要的理论价值和现实意义。探讨CNERN实物资源服务的内涵、特点、服务内容,并提出基于线上线下融合的实物资源服务模式,为"国家生态系统研究网络科技资源服务系统"的实物资源服务子系统的设计、开发提供理论基础和应用模式,也期望为相关部门开展实物资源服务提供参考。
文摘国家生态系统观测研究网络(National Ecosystam Research Network of China,CNERN)平台的数据资源管理与服务模式与开放式电子商务平台架构存在很大的相似性,CNERN基于B2B2C电子商务模式构建了数据资源管理与服务信息平台,有助于改善资源使用者访问和获取数据资源的体验,改进资源提供者进行数据资源管理及数据资源服务的效率。本文分析了数据资源特点,介绍了数据资源内容,详细分析了信息平台架构、系统组成与功能,介绍了CNERN信息平台如何对多方异地管理、异构存储、不同开放服务方式的数据资源进行类似电子商务模式的规范化管理及自动化服务的整体解决方案。
