Study on China's Land Problems from Land Environment
zhang quan-jing~(1; 2); ou ming-hao~1; wang wan-mao~1; pang ying~1 (1.college of land management; nanjing university of agriculture; nanjing 210095; 2.college of resources and planning; qufu normal university; qufu 273165; china)
..............page:45-49
..............page:20-23,44
..............page:15-19,44
..............page:6-10,14
Progress of Method for Wetland Vegetation Biomass
wang shu-gong~(1; 3); li xia~2; zhou yong-zhang~3 (1.institute of environmental sciences; zhongshan university; guangzhou 510275; 2.department of remote sensing & geographic information engineering; zhongshan university; guangzhou 510275; 3.institute of geo-environment & geo-resources; zhongshan university; guangzhou 510275; china)
..............page:104-109,113
..............page:98-103
..............page:84-86,94
..............page:110-112
..............page:50-53,71
..............page:87-90,113
Course Change and Course Realignment of the Yellow River
xu qing-hai~1; yang xiao-lan~2; zheng zhen-hua~2; wang rui-jun~2; ding xiao-yan~2; liang wen-dong~3 (1.college of resources and environment; hebei normal university; shijiazhuang 050016; 2.the hebei institute of geographical sciences; shijiazhuang 050011; 3.institute of geology and geophysics; chinese academy of sciences; beijing 100029; china)
..............page:77-80