摘要
以阿哈湖国家湿地公园为研究对象,综合运用景观生态学原理及GIS和Fragstats3.4软件等工具,分析了1998年、2007年和2017年3个时期阿哈湖国家湿地公园景观格局演变过程。研究结果表明,近20年来阿哈湖国家湿地公园景观类型组分变化显著,景观多样性与异质性增高,而景观优势度降低,整体呈现破碎化趋势。林地、湿地和建设用地的形状愈加复杂,边缘效应增强。建设用地面积持续增长,从1998年的35.60hm^2增长到2017年的116.71hm^2,土地利用年变化率达到11.98%,林地、湿地和旱地土地利用年变化率均为负值,面积均有下降。景观格局变化表现在景观水平上,斑块个数、香浓多样性与香农均匀度指数呈现持续增加的上升趋势,斑块平均面积和聚集度指数则持续下降。在类型水平上,建设用地聚集度最低,总体呈显著上升趋势,空间分布逐渐聚集,连通性增强。
Taking the Aha Lake National Wetland Park as the research object,the landscape pattern and the GIS and Fragstats3.4 software were used to analyze the landscape pattern evolution of the Aha Lake National Wetland Park from 1998 to 2017.The results show that in the past 20 years,the landscape type components of the Aha Lake National Wetland Park have changed significantly,the landscape diversity and heterogeneity have increased,while the landscape dominance has decreased,and the overall fragmentation trend has occurred;the shape of forest land,wetlands and construction land has become more and more Complex,edge effects are enhanced.The area of construction land continued to grow,from 35.60hm^2 in 1998 to 116.71hm^2 in 2017.The annual rate of land use change reached 11.98%.The annual change rate of land use in forest land,wetland and dry land was negative and the area decreased.The change of landscape pattern is reflected in the landscape level,NP,SHDI and SEI continued to increase,MPS and Contiguity Index continued to decline;At the level of type,the construction land has the lowest aggregation degree,showing a significant upward trend overall,and the spatial distribution gradually gathers and the connectivity increases.
作者
王立
李敬
孔志红
苏以江
刘懿
陈骁强
谢乙莹
王原
金慧雨
WANG Li;LI Jing;KONG Zhi-hong;SU Yi-jiang;LIU Yi;CHEN Xiao-qiang;XIE Yi-ying;WANG Yuan;JIN Hui-yu(School of Geography and Tourism,Anhui Normal University,Wuhu 241003,China;Management Office of Guiyang Aha Lake National Wetland Park,Guiyang 550007,China;Shanghai Qixing Eco-environment Consulting co LTD,Shanghai 200433,China;University of Manchester,School of Environment Education and Development,Manchester M13 9PL,UK)
出处
《安徽师范大学学报（自然科学版）》
CAS
2019年第1期40-45,共6页
Journal of Anhui Normal University(Natural Science)
基金
美国国家地理空气与水保护基金项目(GEFC29-16)
关键词
阿哈湖
国家湿地公园
景观格局
景观动态
Aha Lake
national wetland park
landscape pattern
landscape dynamic
