摘要
以Landsat 8为主要数据,借助遥感反演和影子工程法分析了2015年辽宁双台河口湿地气温调节功能,并核算了其总价值和单位价值。以芦苇沼泽、河流水面、浅海水域、光滩、坑塘水面和盐地碱蓬沼泽为主的湿地面积约10.21万hm^2,占研究区总面积的64.65%。研究结果显示:研究区27℃的分布面积最大,为21682.31 hm^2,而41℃的分布面积最小,仅为3.60 hm^2,主要分布于建设用地当中,形成了两个“热岛”区,分别位于保护区的东南角和西南角。每种地类平均气温依次为:光滩(28.21℃)>建设用地(28.09℃)>盐地碱蓬沼泽(27.29℃)>坑塘水面(26.85℃)>浅海水域(26.53℃)>芦苇沼泽(26.50℃)>河流湿地(26.42℃)>农用地(26.18℃)。研究区所有湿地在夏季每天气温调节价值为2.78亿元,不同湿地类型每天调节气温价值大小依次为:河流湿地>浅海水域>坑塘水面>芦苇沼泽>光滩>盐地碱蓬沼泽。不同湿地类型每天调节气温单位面积价值大小依次为:坑塘水面>河流湿地=浅海水域>光滩>盐地碱蓬沼泽>芦苇沼泽。研究结果能够为湿地保护、恢复以及城市规划设计等提供科学依据。
Taking Landsat data as the main data source,we analyzed the temperature regulation function of Liaoning Shuangtai Estuary Wetland in 2015 and accounted for its value with the help of remote sensing inversion and shadow engineering methods.It is concluded that the wetland area is about 0.1021 million hm^2 including reed marshes,river water,shallow waters,mudflat,pond water and Suaeda salsa swamp,accounting for 64.65% of the total area.Land surface temperature inversion results showed that the distribution area of 27℃ was the largest,which was 21682.31 hm^2,and the distribution area of 40℃ was the lowest,which was 3.60 hm^2.The 40℃ area was mainly distributed in the construction land,and formed two"heat islands",located in the southeast and southwest corners of the protected area.Moreover,the research showed that the rankingorder of average temperature for land types was mudflat(28.21℃)>construction land(28.09℃)>Suaeda salsa swamp(27.29℃)>pond water(26.85℃)>shallow waters(26.53℃)>reed swamp(26.50℃)>river wetland(26.42℃)>agricultural Land(26.18℃).The value of temperature regulation function of all wetlands in the study area was 0.278 billion yuan every dayin summer,and the rankingorder of each land type was river wetland>shallow waters>pond water>reed marsh>mudflat>Suaeda salsa swamp.The rankingorder of unit area temperature regulation value per day for each land type was pond water>river wetland=shallow waters>mudflat>Suaeda salsa swamp>reed marsh.The results provide a scientific basis for wetland protection,restoration and urban planning and design.
作者
赵欣胜
崔丽娟
李伟
康晓明
雷茵茹
潘旭
ZHAO Xin-Sheng;CUI Li-Juan;LI Wei;KANG Xiao-Ming;LEI Yin-Ru;PAN Xu(Institute of Wetland Research,Chinese Academy of Forestry,Beijing Key Laboratory of Wetland Services and Restoration,Beijing,100091)
出处
《湿地科学与管理》
2019年第4期18-23,共6页
Wetland Science & Management
基金
国家重点研发计划（2017YFC0506201）
国家自然科学基金资助项目（50809005）
关键词
气温调节
热岛
河口
滨海湿地
湿地
Temperature adjustment
Heat island
Estuary
Coastal wetland
Wetlands
