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数据类型:
序号 Top 100 关键词 词频数量
1Topographic map2779
2Topography2738
3Earth cover2519
4Base maps2152
5Imagery2151
6Geoscientific information1898
7Multidisciplinary1171
8Bioinformatics1156
9Earth sciences1117
10Analytical biochemistry975
11Geology906
12Journal815
13Geophysics761
14Institutional repository696
15Forestry661
16Carbohydrate sequence607
17Database593
18Forest resource575
19Forest distribution496
20Article443
21O-linked427
22China378
23Imagery base maps368
24United states326
25Biodiversity294
26Ecology293
27Agriculture288
28Biology262
29Conference246
30Geography236
31Environment233
32N-linked221
33Oceanography211
34Airborne digital data206
35Geochemistry205
36Gis dataset204
37Astronomy200
3850k scale197
39100k scale184
40Carbohydrate183
41Meteorology168
42University168
43Marine166
44Atmosphere163
45Medicine162
46Marine biology159
47Health153
48Regolith152
49Theses151
50Biochemistry148
51Gis147
52Geological map143
53Climate141
54Grid141
55History138
56Topology138
57United kingdom138
58Landforms137
59Education134
60Japan129
61Climate change128
62Economics124
63Statistics124
64Physics122
65Germany119
66Chemistry118
67Data117
68Climatology115
69Social sciences115
70Zoology112
71Environmental protection110
72Journals109
73Maps108
74Water resources108
75Mankind106
76Energy105
77Seismics105
78Oceans104
79Canada103
80Books100
81Point located99
82Mineralogy98
83Directory97
84Hydrology97
85Jilin province97
86Open access97
87Seismology95
88Environmental sciences93
89Mathematics92
90Molecular biology91
91Law90
92Remote sensing90
93Software90
94Glycoprotein89
95Paleontology89
96Usa89
97Genome88
98Astrophysics87
99Protein87
100Archaeology86

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