东北三角龙湾湿地景观动态对气候变化的滞后性响应
Lag response of landscape dynamics to climate change in Sanjiaolongwan wetland,Northeast China
王晓东 1宋宇加 2江孟宇 1刘晓辉 3姜明3
作者信息
- 1. 长春师范大学地理科学学院,长春 130032
- 2. 吉林师范大学旅游与地理科学学院,吉林四平 136000
- 3. 中国科学院东北地理与农业生态研究所湿地生态与环境重点实验室,长春 130102
- 折叠
摘要
为研究湿地景观格局对气候变化的响应方式,选择三角龙湾湿地为研究区,以8期影像数据和梅河口气象站记录为数据源,采用函数拟合方法分析1985-2020年湿地景观格局和气候的变化方式,并利用相关分析结合典型相关分析揭示景观格局与气候的变化关系.结果表明:湿地景观格局呈波动性变化,面积和边界长度呈增加趋势,形状呈规则化态势,降水和干湿的波动程度比气温波动大.景观格局变动对气候变化响应具有一定滞后性,降水对景观格局的影响大于气温对景观格局的影响,日最大降水量影响滞后3 a,年降水量影响滞后4a,气温变化影响滞后5 a.湿地景观通过调节作用使气候变化的影响延后,此结果对研究生态系统对气候变化的滞后性响应具有一定的外推意义.
Abstract
In order to study the response mode of landscape pattern of wetland to climate change,the wetland dynamics of landscape pattern and climate change from 1985 to 2020 were analyzed using linear and significant functions and the relation-ship between landscape pattern and climate change was revealed using correlation analysis combined with typical correlation analysis taking Sanjiaolongwan wetland as the study area and 8 images and Meihekou meteorological station records as data sources.The results showed that the wetland landscape pattern show fluctuating changes,the area and perimeter increase,the shape has a regular trend,and the fluctuation degree of precipitation and dry-wet was greater than that of the air temperature.The change of landscape pattern has a certain lag in response to climate change.The precipitation has a greater impact on the landscape pattern than the air temperature.Impact of the daily maximum precipitation lags 3 a,impact of the annual precipita-tion lags 4 a,and impact of the temperature change lags 5 a.Wetland landscape delays the impact of climate change by regula-tion,and this results has a certain extrapolation significance for the study of the lag response to climate change of ecosystem.
关键词
三角龙湾湿地/气候变化/景观格局变动/滞后性响应Key words
Sanjiaolongwan wetland/climate change/landscape pattern dynamics/lag response引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据