首页 | 官方网站   微博 | 高级检索  
     

1980-2018年扎龙湿地及乌裕尔河流域景观格局演变及其响应
引用本文:杨钦,胡鹏,王建华,杨泽凡,刘欢,王伟泽.1980-2018年扎龙湿地及乌裕尔河流域景观格局演变及其响应[J].水生态学杂志,2020,41(5):77-88.
作者姓名:杨钦  胡鹏  王建华  杨泽凡  刘欢  王伟泽
作者单位:中国水利水电科学研究院 流域水循环模拟与调控国家重点实验室,中国水利水电科学研究院 流域水循环模拟与调控国家重点实验室,中国水利水电科学研究院 流域水循环模拟与调控国家重点实验室,中国水利水电科学研究院 流域水循环模拟与调控国家重点实验室,中国水利水电科学研究院 流域水循环模拟与调控国家重点实验室,中国水利水电科学研究院 流域水循环模拟与调控国家重点实验室
基金项目:国家重点研发计划课题(2017YFC0404503);国家自然科学基金(51625904);中国水科院基本科研业务费项目(WR0145B522017)
摘    要:研究扎龙湿地及其上游乌裕尔河流域的景观格局演变,为湿地生态系统的管理与保护提供参考。利用研究区内1980-2018年5期土地利用遥感数据,运用GIS空间分析和主成分分析法,分析了区域景观格局时空变化及其驱动力。结果表明:(1)耕地面积从1980年的8629.648629km2增加至2018年的9527.909528km2;水域面积、居工地面积和盐碱地面积分别增加45.7446、57.9358和18.4618km2;林地面积、草地面积和沼泽地面积分别减少231.90232、742.33743和46.1646km2。1980-2000年研究区域其他土地利用类型转移为耕地的面积1035.861306km2,草地转移为其他土地利用类型的面积845.85846km2,其他土地利用类型面积总体变化不大。(2)景观格局指数不稳定,沼泽湿地面积是扎龙湿地的优势景观类型,耕地是乌裕尔河流域的优势景观类型,除优势景观类型外各种景观类型破碎化严重,景观丰富度越来越低。(3)景观格局的变化是自然气候和社会经济发展共同作用的结果,社会经济变化中的人均GDP、第一产业值以及城镇人口数量是导致整个研究区域湿地景观格局变化的主要驱动力;年均径流量与扎龙湿地内部草地的变化正相关。

关 键 词:扎龙湿地  景观格局指数  转移矩阵  驱动力  径流变化
收稿时间:2020/4/29 0:00:00
修稿时间:2020/9/27 0:00:00

Landscape Pattern Change and Response Analysis in Zhalong Wetland and the Wuyuer River Basin, 1980-2018
YANG Qin,HU Peng,WANG Jian-hu,YANG Ze-fan,LIU Huan,WANG Wei-ze.Landscape Pattern Change and Response Analysis in Zhalong Wetland and the Wuyuer River Basin, 1980-2018[J].Journal of Hydroecology,2020,41(5):77-88.
Authors:YANG Qin  HU Peng  WANG Jian-hu  YANG Ze-fan  LIU Huan  WANG Wei-ze
Affiliation:China Institute of Water Resources and Hydropower Research State Key Laboratory of Basin Water Cycle Simulation and Regulation,China Institute of Water Resources and Hydropower Research State Key Laboratory of Basin Water Cycle Simulation and Regulation,China Institute of Water Resources and Hydropower Research State Key Laboratory of Basin Water Cycle Simulation and Regulation,China Institute of Water Resources and Hydropower Research State Key Laboratory of Basin Water Cycle Simulation and Regulation,China Institute of Water Resources and Hydropower Research State Key Laboratory of Basin Water Cycle Simulation and Regulation,China Institute of Water Resources and Hydropower Research State Key Laboratory of Basin Water Cycle Simulation and Regulation
Abstract:Zhalong Wetland is an important wetland in China. With the drastic changes in social economy and natural climate, significant changes have taken place inside the wetland. Studying the landscape pattern evolution of Zhalong Wetland and its upstream Uyur River Basin has important reference significance for management and protection of wetland ecosystem. This paper analyzes the spatial-temporal changes and driving forces of the landscape pattern in this area by using the land use remote sensing data from 1980 to 2018 in the study area, using GIS spatial analysis and principal component analysis. The results show that (1) the wetland area in the study has been greatly reduced in the past 40 years, replaced by the increase of the agriculture land, with the change of the wetland area and agriculture area reaching 743km2 742.33km2 and -899-898.26km2; (2) marsh area is the dominant landscape of Zhalong Wetland and agriculture land is the main landscape of Uyur River Basin, and other landscape types are seriously fragmented, resulting in reduced landscape richness; (3) the change of landscape pattern is the result of natural climate and social and economic development, in which the per capita GDP, the value of primary industry and the change of urban population in social and economic changes are the main driving forces for the change of wetland landscape pattern in the whole research area. In addition, there is still a significant positive correlation between annual average runoff and changes in grasslands in Zhalong Wetland.
Keywords:Zhalong wetland  landscape pattern index  transfer matrix  driving force  runoff change
点击此处可从《水生态学杂志》浏览原始摘要信息
点击此处可从《水生态学杂志》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号