若尔盖高寒湿地空间分布及景观格局动态研究  

Dynamic Changes of Wetland Distribution and Landscape Pattern in Zoige Key Areas

作　　者：张好[1] 唐菲 黄兰鹰 贺维[1] Zhang Hao;Tang Fei;Huang Lanying;He Wei(Sichuan Academy of Forestry,Chengdu 610081,Sichuan,China;Island Research Center,Department of Natural Resources,Pingtan 350400,Fujian,China)

机构地区：[1]四川省林业科学研究院,四川成都610081 [2]自然资源部海岛研究中心,福建平潭350400

出　　处：《绿色科技》2024年第10期14-19,共6页Journal of Green Science and Technology

摘　　要：若尔盖地区拥有全球面积最大的高寒泥炭沼泽湿地。基于30 m全球地表覆盖数据集,利用Arcgis和Fragstats软件对2000年、2010年和2020年若尔盖地区的湿地面积变化、空间分布及景观格局变化进行分析。结果表明:若尔盖地区湿地主要集中在四川若尔盖县,四川范围内3个时期湿地面积分别占各个时期研究区湿地面积的84.97%、78.33%和77.43%;湿地面积在2000-2020年呈缓慢增长趋势,湿地面积增加559.68 km^(2) ,其中甘肃地区湿地增加面积为423.23 km^(2) ,增长区域主要集中在甘肃玛曲县黄河左侧区域和四川阿坝县曼泽塘区域;地表覆盖变化趋势是以草地转化为湿地(水体)类别为主,变化面积为844.92 km^(2);湿地景观破碎化程度有所减缓,在2000-2010年降低了2.11,2010-2020年降低0.65,湿地景观格局更加稳定。The Zoige region has the largest alpine peat swamp in the world.Using the ArcGIS and FRAGSTATS software,this study extracted the distribution of wetlands and the landscape pattern based on the 30 m resolution globeland dataset of 2000,2010 and 2020.The results shows that the wetland in Zoige key areas is mainly concentrated in Sichuan.The wetland area of the three periods in Sichuan province accounted for 84.97%,78.33%and 77.43%.The wetland area increased by 559.68km^(2) including 423.23km^(2) in Gansu province,showing a slow growth trend from 2000 to 2020.The growth area is mainly concentrated in the left side of the Yellow River in Maqu County and Manzetang area in Aba County.The change trend of land cover is mainly from grassland to wetland(water body),and the change area was 844.92km^(2) .The degree of wetland landscape fragmentation decreased by 2.11 in 2000-2010 and 0.65 in 2010-2020,indicating a more stable wetland landscape pattern.

关 键 词：若尔盖 湿地 景观格局 

分 类 号：P901[天文地球—自然地理学]