1990—2018年杞麓湖流域景观格局时空演变及其生态系统服务价值响应  

Temporal and Spatial Evolution of Landscape Pattern and Response of Ecosystem Service Value in Qilu Lake Basin From 1990 to 2018

作　　者：马国强 李秋洁[3] 肖剑平 杨书宇 MA Guo-qiang;LI Qiu-jie;XIAO Jian-ping;YANG Shu-yu(Southwest Investigation and Planning Institute of State Forestry and Grassland Administration,Kunming Yunnan 650216,P.R.China;College of Ecology,Lanzhou University,Lanzhou Gansu 730000,P.R.China;Power China Kunming Engneering Corporation Limted,Kunming Yunnan 650051,P.R.China)

机构地区：[1]国家林业和草原局西南调查规划院,云南昆明650216 [2]兰州大学生态学院,甘肃兰州730000 [3]中国电建集团昆明勘测设计研究院有限公司,云南昆明650051

出　　处：《西部林业科学》2023年第1期34-42,50,共10页Journal of West China Forestry Science

基　　金：中国科学院战略性先导专项(XDA2010010103);国家自然科学基金项目(31860603);国家林业和草原局林业软科学研究项目(2018-R14);国家林业和草原局西南调查规划院科技项目(2022-018);云南省教育厅自然科学基金项目(2018Y116)。

摘　　要：杞麓湖流域地处生态安全战略格局的南方丘陵山地带西缘,生态区位极为重要。保障杞麓湖流域的生态安全也极为重要。本研究通过利用ArcGIS和当量因子法,分析杞麓湖流域近30年间的景观格局随时空演变产生的特征及其对生态系统服务价值产生的影响。结果显示:(1)近30年间,杞麓湖流域景观类型以耕地、乔木林地、灌木林地和湖泊为主。灌木林地面积大幅度降低,城乡居民建设用地面积大幅度增长,耕地面积显著增长。景观结构转移最频繁的为灌木林地,共转出9397.80 hm^(2)。(2)近30年间,总ESV与蔓延度呈正相关,与其他景观指数呈负相关。生态系统服务价值高的区域分布与湖泊、人工湿地和沼泽湿地分布相一致。(3)水体、林地等景观类型的生态系统服务价值较高,在调整杞麓湖流域土地结构,优化土地配置时应得到充分重视。Qilu Lake Basin is located in the western edge of the southern hilly and mountainous area of the strategic pattern of ecological security,and the ecological location is extremely important.It is also extremely important to ensure the ecological security of Qilu Lake Basin.By using ArcGIS and equivalent factor method,this study analyzed the characteristics of the landscape pattern of Qilu Lake Basin in the past 30 years and its impact on the value of ecosystem services.The results show that:(1)In recent 30 years,the landscape types of Qilu Lake Basin are mainly cultivated land,arbor forest land,shrub land and lakes.The area of shrub land has decreased significantly,the area of construction land for urban and rural residents has increased significantly,and the area of cultivated land has increased significantly.The most frequent transfer of landscape structure is shrub land,with a total of 9397.80 hm^(2).(2)In the past 30 years,the total ESV was positively correlated with the degree of spread and negatively correlated with other landscape indexes.The distribution of regions with high ecosystem service value is consistent with that of lakes,constructed wetlands and marshes.(3)The ecosystem service value of landscape types such as water body and forest land is high,which should be paid full attention to adjusting the land structure and optimizing the land allocation in Qilu Lake Basin.

关 键 词：杞麓湖流域 生态系统服务价值 景观格局指数 相关性 

分 类 号：P901[天文地球—自然地理学]