Evolution of the historical polder landscape in the ancient Danyang wetland,lower Yangtze River,China,during the last 3000 years  

长江下游古丹阳泽湿地过去3000年来历史圩田景观的演变

作　　者：HU Xiaosi WU Li ZHUANG Yijie WANG Xinyuan MA Chunmei LI Linying GUAN Houchun LU Shuguang LUO Wenjing XU Ziyi 胡晓思;吴立;庄奕杰;王心源;马春梅;李林英;管后春;路曙光;罗文菁;许子怡

机构地区：[1]Provincial Key Laboratory of Earth Surface Processes and Regional Response in the Yangtze-Huaihe River Basin,School of Geography and Tourism,Anhui Normal University,Wuhu 241002,Anhui,China [2]Institute of Archaeology,University College London,London WC1H OPY,UK [3]Aerospace Information Research Institute,CAS,Beijing 100094,China [4]School of Geographic and Oceanographic Sciences,Nanjing University,Nanjing 210023,China [5]Anhui Institute of Geological Sciences,Hefei 230001,China

出　　处：《Journal of Geographical Sciences》2024年第10期2053-2073,共21页地理学报（英文版）

基　　金：National Natural Science Foundation of China,No.42271173,No.41771221;Key Project of the 14th Five-Year Plan of Anhui,No.2022BFAFZ01365;National Key Program of Innovation Training for College Students,No.202310370039,No.202310370049,No.S202310370332。

摘　　要：Polder is a type of irrigation field unique to the lower Yangtze River of China.It is a product of long-term and ingenuous human modifications of wetland landscapes.In the pre-Qin Period,3000 years ago,the poldered area of eastern Wuhu city was once a large lake called the ancient Danyang wetland.The introduction of agricultural civilization and polder technology to the area during the Wu and Yue Kingdoms period gradually transformed it into an agricultural area.With an accelerating rate of land reclamation under a changing late-Holocene regional climate,the ancient Danyang wetland became an aquatic system strongly influenced by intensifying anthropogenic activities.In this study,based on field survey data,historical documents,and remote-sensing and archaeological data,we reconstructed the spatial distribution of the polder landscape over the last 3000 years and identified their structural diversity.We found that polder landscapes began to emerge in the Spring and Autumn Period,land reclamation intensified in the Three Kingdoms and developed rapidly in the Song Dynasty before eventually reaching the peak from the Ming and Qing Dynasties.The relocation of historical sites to low-altitude areas also marked the expansion of poldered fields from the center of the wetland to the southeast and northwest.The development and evolution of the polder landscape are related to regional climate conditions,changing social and economic statuses,and the development of agricultural technology in the Song Dynasty and succeeding periods.

关 键 词：ancient Danyang wetland polder landscape climate change anthropogenic activities lower Yangtze River 

分 类 号：P467[天文地球—大气科学及气象学] P901