Institution: | 1.Heilongjiang Hydrology and Water Resources Center, 150001, Harbin, China ;2.Haikou College of Economics, 521127, Haikou, China ;3.College of Public Administration and Law, Northeast Agricultural University, 150030, Harbin, China ;4.College of Horticulture and Gardening, Northeast Agricultural University, 150030, Harbin, China ;5.Qiqihar University, 161006, Qiqihar, China ;6.Planning and Design Institute, 014000, Baotou, China ;7.Qiqihar Landscaping Center, 161000, Qiqihar, China ; |