Chunguang Lyu¹, Yanmei Lyu², Yunfei Shi¹, Huasheng Sun¹, Fucheng Song¹, Qiuping Zhai¹ and Peng Gao¹, (1)Linyi University, Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection, College of Resources and Environment, Linyi, China, (2)University of the Cordilleras, College of Teacher Education, Baguio, Philippines