Junfeng Xu 1,2, Zhanqing Cai 1,2, Tiantian Wang 1,2, Guang Liu 1,2, Peng Tang 1,2 and Xinyue Ye 3,* 1 Institute of Remote Sensing and Earth Sciences, Hangzhou Normal University, Hangzhou 311121, China; xjf11@zju.edu.cn (J.X.); fortyjames@163.com (Z.C.); wangtt1130@163.com (T.W.); yidoua@163.com (G.L.); iviptp@163.com (P.T.) 2 Zhejiang Provincial Key Laboratory of Urban Wetland and Regional Chan...