摘要
基于近20年青海省生态系统格局、生态系统服务功能(水源涵养、土壤保持、生物多样性维护)为评估指标,分析青海省全省和重点区域生态状况及其动态变化,综合评估青海省生态重要性。结果表明,青海省以自然生态空间为主,农业空间和城镇空间面积较少;生态系统类型丰富,以草地、湿地、荒漠、灌丛生态系统为主,分布有高寒草甸、高寒沼泽、冰川、冻土等独特的高原生态系统;全省自然生态系统具有水源涵养、土壤保持、生物多样性维护等服务功能,动植物物种资源和淡水资源极为丰富,生态区位十分重要;生态系统服务功能重要性布局整体发生明显变化,服务功能重要区域面积增加,生态系统服务功能整体有所增强,表明全省生态重要性提高。此研究可为推进青海省生态环境保护、规划管理及维护区域生态安全格局提供参考。
Based on the changes of ecosystem pattern and ecosystem services(water conservation,soil conservation,biodiversity conservation)in Qinghai Province in the past 20 years,the ecological status and dynamic changes of the whole province and key areas of Qinghai Province were analyzed,and the ecological importance of Qinghai Province was comprehensively evaluated.The results show that Qinghai Province is dominated by natural ecological space,with less agricultural space and urban space.The types of ecosystems are rich,mainly grassland,wetland,desert and shrub ecosystems,and there are unique plateau ecosystems such as alpine meadow,alpine swamp,glacier and frozen soil.The natural ecosystem of the province has the service functions of water conservation,soil conservation and biodiversity maintenance.The animal and plant species resources and freshwater resources are extremely rich,and the ecological location is very important.The overall layout of the importance of ecosystem service functions has changed significantly,the area of important areas of service functions has increased,and the overall ecosystem service functions have been enhanced,indicating that the ecological importance of the province has increased.This study provides a reference for promoting ecological environment protection,planning management and maintaining regional ecological security pattern in Qinghai Province.
作者
邓得玲
杜敏洁
童立珺
Deng Deling;Du Minjie;Tong Lijun(Qinghai Ecological Environment Planning and Environmental Protection Technology Center,Xining,Qinghan 810099)
出处
《资源环境与工程》
2023年第4期420-429,共10页
Resources Environment & Engineering
关键词
生态格局
生态系统服务
生态重要性
青海省
ecological pattern
ecosystem services
ecological importance
Qinghai Province
