Geo-informatics in Sustainable Ecosystem and Society 6th International Conference, GSES 2018, Handan, China, September 25-26, 2018, Revised Selected Papers - Xie, Yichun; Xie, Yichun; Zhang, Anbing; Zhang, Anbing; Liu, Haixin; Liu, Haixin; Feng, Lili; Feng, Lili (Springer Singapore : Imprint: Springer, 2019)