| # | Discipline | Articles | Citations | R ARank | R CRank |
|---|
| 1 | Science | 102 | 6,693 | 2.7K | 4.8K |
| 2 | Biology | 56 | 5,398 | 5.7K | 5.1K |
| 3 | Environmental Policy | 86 | 5,164 | 29 | 36 |
| 4 | Physics | 42 | 4,894 | 5.1K | 4.8K |
| 5 | Pollution | 62 | 4,564 | 820 | 655 |
| 6 | Environment | 67 | 4,225 | 534 | 713 |
| 7 | Sustainable Development | 81 | 4,047 | 3 | 6 |
| 8 | atmospheric models | 8 | 3,583 | 255 | 25 |
| 9 | Water | 24 | 3,523 | 387 | 142 |
| 10 | Ecology | 91 | 3,459 | 896 | 1.6K |
| 11 | Environmental Health | 65 | 3,452 | 729 | 813 |
| 12 | Water pollution | 11 | 3,353 | 1.2K | 136 |
| 13 | Natural history | 15 | 2,846 | 3.2K | 5.1K |
| 14 | Biodiversity conservation | 23 | 2,349 | 430 | 345 |
| 15 | sustainability | 28 | 2,312 | 4 | 2 |
| 16 | Regional Planning | 34 | 2,309 | 89 | 27 |
| 17 | Renewable Energy Sources | 29 | 2,235 | 66 | 133 |
| 18 | Chemistry | 26 | 2,040 | 12.0K | 7.5K |
| 19 | Strategic planning | 10 | 1,982 | 26 | 1 |
| 20 | Climate change | 14 | 1,867 | 375 | 356 |
| 21 | Eutrophication | 13 | 1,856 | 401 | 358 |
| 22 | Environmental Management | 38 | 1,835 | 104 | 167 |
| 23 | Economic Development | 15 | 1,815 | 119 | 17 |
| 24 | Environmental Engineering | 15 | 1,629 | 2.2K | 1.2K |
| 25 | sanitation | 13 | 1,490 | 1.2K | 948 |
| 26 | Land Use Planning | 10 | 1,469 | 54 | 14 |
| 27 | Energy Policy | 41 | 1,394 | 16 | 32 |
| 28 | Chemical Engineering | 14 | 1,380 | 2.7K | 1.2K |
| 29 | Biomass Energy | 27 | 1,298 | 359 | 471 |
| 30 | global environmental change | 43 | 1,289 | 7 | 31 |
| 31 | Europe | 28 | 1,245 | 583 | 260 |
| 32 | Earth Sciences | 23 | 1,132 | 489 | 363 |
| 33 | energy development | 8 | 1,103 | 131 | 154 |
| 34 | environmental protection | 22 | 1,001 | 582 | 736 |
| 35 | Research | 31 | 922 | 9.0K | 11.6K |
| 36 | Water quality management | 17 | 840 | 377 | 160 |
| 37 | energy resources | 13 | 839 | 29 | 77 |
| 38 | Technology | 19 | 789 | 1.3K | 1.1K |
| 39 | Corporate Social Responsibility | 6 | 696 | 15 | 3 |
| 39 | environmental auditing | 6 | 696 | 15 | 3 |
| 41 | energy conservation | 30 | 692 | 56 | 172 |
| 42 | Biotechnology | 17 | 613 | 6.1K | 8.6K |
| 43 | Medicine | 22 | 603 | 17.9K | 28.6K |
| 44 | management | 7 | 566 | 768 | 389 |
| 45 | Energy Consumption | 26 | 558 | 11 | 57 |
| 46 | environmental issues | 15 | 548 | 28 | 25 |
| 47 | Industrial Engineering | 7 | 494 | 1.7K | 751 |
| 48 | Optics | 2 | 487 | 9.0K | 1.7K |
| 49 | Solar power plants | 8 | 477 | 42 | 45 |
| 49 | Photovoltaic Cells | 8 | 477 | 42 | 45 |
| 49 | solar cells | 8 | 477 | 78 | 67 |
| 52 | environmental pollution | 19 | 475 | 1.7K | 2.9K |
| 53 | Hydrology | 20 | 465 | 563 | 949 |
| 53 | Catalysis | 2 | 465 | 11.3K | 3.6K |
| 55 | Plant Ecology | 11 | 447 | 769 | 1.0K |
| 55 | Environmental Chemistry | 7 | 447 | 1.8K | 1.9K |
| 57 | city planning | 17 | 440 | 169 | 208 |
| 58 | Industrial Ecology | 13 | 428 | 13 | 56 |
| 58 | international cooperation | 10 | 428 | 84 | 121 |
| 60 | Biodiversity | 19 | 424 | 628 | 1.1K |
| 61 | biocatalysis | 1 | 419 | 514 | 264 |
| 61 | Homogeneous catalysis | 1 | 419 | 514 | 264 |
| 61 | Heterogeneous catalysis | 1 | 419 | 514 | 264 |
| 64 | Regional Economics | 7 | 408 | 75 | 38 |
| 64 | Europa | 7 | 408 | 113 | 49 |
| 66 | Geomorphology | 3 | 406 | 428 | 145 |
| 67 | water supply | 10 | 390 | 419 | 541 |
| 68 | Energy Conversion | 3 | 382 | 2.8K | 1.8K |
| 69 | Probability | 3 | 353 | 596 | 155 |
| 69 | Risk Management | 3 | 353 | 546 | 144 |
| 69 | Financial management | 3 | 353 | 324 | 134 |
| 69 | Risk | 3 | 353 | 470 | 196 |
| 73 | Bioengineering | 12 | 352 | 4.1K | 9.0K |
| 74 | Product life cycle | 7 | 343 | 75 | 96 |
| 74 | green products | 7 | 343 | 69 | 96 |
| 76 | Geriatrics | 5 | 338 | 5.5K | 3.8K |
| 77 | United States | 4 | 336 | 11.4K | 4.2K |
| 78 | Recycling | 5 | 327 | 4 | 27 |
| 79 | ecosystem | 13 | 322 | 376 | 970 |
| 80 | technology transfer | 10 | 308 | 7 | 21 |
| 81 | Mathematics | 7 | 292 | 6.7K | 2.4K |
| 82 | older people | 3 | 278 | 2.0K | 464 |
| 83 | Engineering | 6 | 277 | 4.1K | 1.8K |
| 84 | Economics | 10 | 275 | 1.9K | 1.7K |
| 85 | Ecosystem management | 11 | 271 | 116 | 300 |
| 86 | Biogeography | 9 | 263 | 560 | 1.2K |
| 87 | Waste management | 5 | 256 | 998 | 477 |
| 88 | Sustainable agriculture | 12 | 247 | 33 | 153 |
| 88 | Transport | 3 | 247 | 119 | 78 |
| 90 | Biogeochemistry | 14 | 246 | 246 | 735 |
| 91 | innovation | 12 | 245 | 23 | 124 |
| 92 | Botany | 11 | 241 | 4.2K | 7.4K |
| 93 | Public Health | 13 | 238 | 5.3K | 10.1K |
| 93 | Water Purification | 3 | 238 | 1.4K | 438 |
| 95 | plant communities | 6 | 237 | 1.0K | 1.5K |
| 96 | Transportation | 3 | 228 | 1.4K | 592 |
| 97 | radioactive waste | 1 | 227 | 1.4K | 500 |
| 97 | industrial waste | 1 | 227 | 1.6K | 501 |
| 97 | Hazardous waste | 1 | 227 | 1.9K | 544 |
| 100 | Transportation Engineering | 3 | 224 | 241 | 111 |
| 101 | Geophysics | 8 | 220 | 3.3K | 3.9K |
| 102 | biofuels | 1 | 217 | 1.0K | 361 |
| 103 | Geography | 8 | 215 | 1.3K | 1.6K |
| 104 | Nanotechnology | 2 | 212 | 27.6K | 16.4K |
| 104 | Social Change | 3 | 212 | 136 | 127 |
| 106 | Technology Assessment | 2 | 192 | 56 | 13 |
| 106 | Risk assessment | 2 | 192 | 623 | 91 |
| 106 | Cost effectiveness | 2 | 192 | 52 | 12 |
| 106 | Decision making | 2 | 192 | 2.4K | 970 |
| 110 | Landscape Ecology | 9 | 190 | 96 | 328 |
| 111 | sustainable growth | 11 | 179 | 1 | 31 |
| 112 | Environmentalism | 2 | 177 | 83 | 54 |
| 113 | Environmental monitoring | 8 | 170 | 3.1K | 6.3K |
| 114 | Greenhouse gases | 6 | 167 | 16 | 37 |
| 115 | Biogeochemical cycles | 3 | 163 | 432 | 727 |
| 116 | Planets | 6 | 162 | 1.7K | 2.7K |
| 117 | Psychology | 4 | 158 | 11.2K | 11.1K |
| 118 | Epidemiology | 5 | 155 | 8.3K | 9.4K |
| 118 | Spectrum analysis | 1 | 155 | 13.7K | 4.1K |
| 120 | Environmental risk assessment | 8 | 152 | 47 | 127 |
| 121 | Industrial Policy | 9 | 149 | 25 | 86 |
| 122 | Toxicology | 5 | 146 | 11.6K | 13.0K |
| 123 | Technological Innovations | 6 | 143 | 274 | 407 |
| 124 | Meteorology | 4 | 142 | 2.8K | 4.4K |
| 125 | Sociology | 5 | 140 | 2.3K | 3.1K |
| 125 | Plants | 3 | 140 | 4.8K | 5.3K |
| 127 | Plant physiology | 2 | 132 | 5.9K | 5.3K |
| 127 | plant molecular biology | 2 | 132 | 4.7K | 5.1K |
| 129 | soil conservation | 2 | 127 | 1.1K | 473 |
| 129 | soil pollution | 2 | 127 | 574 | 212 |
| 131 | Drug design | 5 | 123 | 1.9K | 3.4K |
| 132 | Environmental Toxicology | 6 | 116 | 2.5K | 6.3K |
| 132 | environmental control | 6 | 116 | 38 | 125 |
| 134 | Public Policy | 5 | 115 | 1.1K | 1.7K |
| 134 | Environmental Law | 2 | 115 | 2.2K | 2.8K |
| 136 | Architecture | 3 | 112 | 535 | 252 |
| 137 | Information Technology | 3 | 111 | 2.3K | 1.6K |
| 138 | Humanities | 6 | 110 | 330 | 354 |
| 139 | construction | 2 | 109 | 70 | 86 |
| 140 | Business Ethics | 2 | 103 | 369 | 529 |
| 141 | Pharmacology | 8 | 99 | 12.6K | 28.1K |
| 141 | population geography | 2 | 99 | 269 | 194 |
| 143 | Green Chemistry | 2 | 98 | 5.7K | 5.6K |
| 144 | Health Policy | 6 | 95 | 2.8K | 5.8K |
| 145 | Human Geography | 6 | 90 | 464 | 803 |
| 146 | Economic Geography | 6 | 89 | 104 | 270 |
| 147 | Electrical Engineering | 3 | 88 | 5.5K | 2.4K |
| 148 | research and development | 2 | 87 | 105 | 185 |
| 149 | Public Administration | 3 | 85 | 980 | 857 |
| 149 | Conservation Biology | 2 | 85 | 1.5K | 2.0K |
| 149 | Environmental Economics | 6 | 85 | 79 | 259 |
| 152 | Small Business | 3 | 84 | 165 | 506 |
| 153 | Wireless Communication Systems | 1 | 83 | 4.9K | 2.1K |
| 154 | Food Security | 2 | 82 | 131 | 150 |
| 155 | Evolutionary economics | 2 | 77 | 104 | 76 |
| 155 | Medical Anthropology | 2 | 77 | 2.5K | 3.1K |
| 155 | Social behavior | 2 | 77 | 2.4K | 3.0K |
| 155 | biological evolution | 2 | 77 | 6.4K | 8.0K |
| 155 | Evolution | 2 | 77 | 6.0K | 7.1K |
| 155 | Population Dynamics | 2 | 77 | 124 | 111 |
| 161 | Econometrics | 2 | 76 | 1.8K | 1.4K |
| 162 | Climatology | 3 | 68 | 2.3K | 3.5K |
| 162 | Mineral resources | 3 | 68 | 19 | 97 |
| 164 | Agricultural Ecology | 6 | 64 | 724 | 3.2K |
| 165 | Geology | 6 | 63 | 2.7K | 4.7K |
| 166 | health services accessibility | 1 | 61 | 3.0K | 1.4K |
| 166 | Wetland ecology | 5 | 61 | 128 | 441 |
| 168 | Gerontology | 2 | 60 | 5.2K | 5.3K |
| 168 | Aging | 2 | 60 | 10.9K | 12.1K |
| 170 | Biochemical Engineering | 4 | 58 | 3.3K | 10.6K |
| 170 | Atmospheric Physics | 2 | 58 | 2.7K | 3.1K |
| 170 | Politics | 1 | 58 | 783 | 313 |
| 170 | government | 1 | 58 | 1.2K | 650 |
| 174 | Social Sciences | 7 | 56 | 1.7K | 4.9K |
| 174 | Scandinavia | 3 | 56 | 817 | 1.1K |
| 176 | pollutants | 2 | 53 | 3.8K | 5.8K |
| 176 | Environmental pollutants | 2 | 53 | 5.5K | 7.6K |
| 178 | Materials Science | 1 | 52 | 27.2K | 22.4K |
| 179 | Agriculture | 4 | 50 | 2.4K | 4.9K |
| 180 | Social Psychology | 1 | 48 | 5.1K | 4.0K |
| 180 | Educational Psychology | 1 | 48 | 2.6K | 2.0K |
| 180 | Educational Sociology | 1 | 48 | 394 | 279 |
| 183 | Sustainable Engineering | 1 | 44 | 7.6K | 7.8K |
| 183 | Agronomy | 3 | 44 | 725 | 1.3K |
| 185 | Soil Science | 2 | 43 | 2.4K | 3.2K |
| 185 | Globalization | 3 | 43 | 222 | 750 |
| 185 | Geobiology | 3 | 43 | 471 | 1.1K |
| 185 | Fisheries | 2 | 43 | 1.8K | 2.3K |
| 189 | drug therapy | 4 | 41 | 5.5K | 17.3K |
| 190 | Global Health | 2 | 40 | 2.1K | 2.0K |
| 191 | occupational diseases | 1 | 37 | 3.1K | 3.2K |
| 192 | Ecological Engineering | 1 | 35 | 262 | 358 |
| 192 | Organizational change | 3 | 35 | 192 | 578 |
| 192 | soil microbiology | 2 | 35 | 2.4K | 5.7K |
| 192 | Sea | 1 | 35 | 251 | 321 |
| 192 | Fishery resources | 1 | 35 | 314 | 374 |
| 192 | Plant diseases | 2 | 35 | 4.6K | 6.0K |
| 198 | Tourism | 2 | 34 | 909 | 1.7K |
| 198 | cryosphere | 1 | 34 | 465 | 499 |
| 200 | Education | 2 | 33 | 7.3K | 8.9K |
| 200 | Wetland conservation | 3 | 33 | 167 | 566 |
| 200 | Therapeutics | 3 | 33 | 6.6K | 21.7K |
| 200 | Wetlands | 3 | 33 | 173 | 567 |
| 204 | health planning | 3 | 32 | 1.5K | 3.9K |
| 205 | Rural Development | 1 | 30 | 418 | 387 |
| 205 | Political Sociology | 1 | 30 | 583 | 615 |
| 205 | Coastal zone management | 1 | 30 | 395 | 308 |
| 205 | Entrepreneurship | 2 | 30 | 322 | 893 |
| 205 | Information Science | 2 | 30 | 1.1K | 2.5K |
| 210 | Groundwater | 1 | 29 | 2.8K | 2.8K |
| 211 | wetland management | 2 | 28 | 108 | 277 |
| 212 | Solid State Physics | 2 | 27 | 8.2K | 10.0K |
| 212 | Malaria | 5 | 27 | 562 | 2.2K |
| 214 | organizational effectiveness | 2 | 26 | 296 | 527 |
| 214 | biological invasions | 2 | 26 | 683 | 1.4K |
| 216 | Higher Education | 2 | 25 | 492 | 999 |
| 216 | Parasitology | 1 | 25 | 8.4K | 8.9K |
| 216 | Parasitic Diseases | 1 | 25 | 7.2K | 9.0K |
| 216 | Wind power | 1 | 25 | 514 | 571 |
| 216 | disease vectors | 1 | 25 | 2.4K | 2.8K |
| 216 | Parasites | 1 | 25 | 4.2K | 4.4K |
| 222 | drug evaluation | 2 | 24 | 2.9K | 6.9K |
| 223 | System analysis | 3 | 23 | 3.0K | 6.1K |
| 223 | Entomology | 1 | 23 | 7.1K | 7.1K |
| 225 | mammals | 2 | 22 | 2.0K | 3.8K |
| 226 | Health Education | 1 | 21 | 7.2K | 8.3K |
| 226 | medical education | 1 | 21 | 9.2K | 10.2K |
| 226 | freshwater biology | 3 | 21 | 913 | 2.9K |
| 229 | Ecohydrology | 3 | 20 | 179 | 879 |
| 229 | Africa | 3 | 20 | 2.0K | 4.0K |
| 229 | Chemical industry | 1 | 20 | 4.1K | 4.0K |
| 232 | Municipal Engineering | 2 | 18 | 251 | 1.0K |
| 232 | Asia | 3 | 18 | 2.9K | 7.0K |
| 232 | Communication in politics | 2 | 18 | 67 | 274 |
| 232 | Aquatic ecology | 2 | 18 | 1.2K | 3.1K |
| 236 | Environmental Ethics | 2 | 17 | 105 | 274 |
| 236 | evaluation | 2 | 17 | 125 | 392 |
| 238 | Communication | 1 | 16 | 3.3K | 4.7K |
| 238 | Human Resources | 1 | 16 | 336 | 716 |
| 240 | Population Genetics | 1 | 15 | 4.7K | 8.6K |
| 240 | Nonlinear Dynamics | 1 | 15 | 6.8K | 8.4K |
| 240 | animals | 1 | 15 | 4.0K | 4.9K |
| 240 | Statistical physics | 1 | 15 | 11.1K | 12.5K |
| 240 | Population | 1 | 15 | 2.1K | 2.9K |
| 245 | Genetic engineering | 2 | 14 | 8.3K | 23.1K |
| 245 | Internet of Things | 1 | 14 | 2.0K | 2.3K |
| 245 | Industrial Microbiology | 2 | 14 | 5.2K | 13.2K |
| 245 | Architectural Design | 1 | 14 | 1.1K | 1.2K |
| 245 | Restoration Ecology | 1 | 14 | 901 | 1.6K |
| 245 | design | 1 | 14 | 731 | 893 |
| 245 | internet | 1 | 14 | 2.6K | 3.3K |
| 252 | Systems Theory | 1 | 12 | 820 | 1.1K |
| 252 | Biological Systems | 1 | 12 | 2.2K | 4.3K |
| 252 | Social Systems | 1 | 12 | 226 | 317 |
| 252 | Nanostructures | 1 | 12 | 8.8K | 13.8K |
| 252 | Computational Complexity | 1 | 12 | 1.8K | 1.9K |
| 252 | toxicity testing | 1 | 12 | 2.4K | 4.4K |
| 258 | Zoology | 1 | 11 | 9.0K | 13.3K |
| 258 | Health Services Research | 3 | 11 | 2.8K | 9.4K |
| 258 | Dynamics | 1 | 11 | 4.8K | 5.7K |
| 258 | Crisis management | 1 | 11 | 139 | 311 |
| 262 | Urban Policy | 1 | 10 | 573 | 1.3K |
| 262 | greenhouse effect | 1 | 10 | 60 | 187 |
| 262 | Urbanization | 1 | 10 | 160 | 314 |
| 262 | Carbon | 1 | 10 | 219 | 572 |
| 262 | Carbon dioxide | 1 | 10 | 60 | 187 |
| 262 | Climate | 1 | 10 | 986 | 2.2K |
| 262 | Developing countries | 1 | 10 | 5.1K | 8.7K |
| 269 | Nutrition | 3 | 9 | 16.6K | 55.5K |
| 269 | Energy Storage | 1 | 9 | 5.4K | 8.6K |
| 269 | Environmental Education | 1 | 9 | 580 | 1.1K |
| 269 | Pesticide residues | 2 | 9 | 37 | 271 |
| 269 | Food additives | 2 | 9 | 1.5K | 4.8K |
| 269 | food contamination | 2 | 9 | 1.8K | 5.4K |
| 269 | Health promotion | 2 | 9 | 4.1K | 11.5K |
| 269 | Diet | 1 | 9 | 14.3K | 29.1K |
| 277 | Hydrogeology | 2 | 8 | 1.3K | 4.0K |
| 277 | Clinical Pharmacology | 1 | 8 | 6.1K | 11.4K |
| 277 | Water Conservation | 2 | 8 | 52 | 227 |
| 277 | industrial relations | 1 | 8 | 1.0K | 1.6K |
| 277 | Germany | 2 | 8 | 374 | 1.1K |
| 277 | Australia | 1 | 8 | 7.7K | 11.8K |
| 283 | Paleoclimatology | 1 | 6 | 1.0K | 2.2K |
| 283 | United Kingdom | 1 | 6 | 8.7K | 16.9K |
| 283 | tests | 1 | 6 | 194 | 654 |
| 286 | Atmospheric Chemistry | 1 | 5 | 1.9K | 3.4K |
| 287 | Biophysics | 1 | 4 | 64.1K | 64.0K |
| 287 | Marine Biology | 2 | 4 | 4.9K | 14.4K |
| 287 | Nuclear Medicine | 1 | 4 | 4.7K | 8.5K |
| 287 | Cartography | 1 | 4 | 650 | 1.4K |
| 287 | Geographic information systems | 1 | 4 | 2.5K | 5.0K |
| 287 | Diagnostic Imaging | 1 | 4 | 12.5K | 23.8K |
| 287 | Molecular Imaging | 1 | 4 | 3.6K | 7.9K |
| 287 | Venture Capital | 1 | 4 | 48 | 150 |
| 287 | Law and Economics | 1 | 4 | 356 | 586 |
| 287 | Investments | 1 | 4 | 318 | 641 |
| 297 | Logistics | 1 | 3 | 216 | 529 |
| 297 | Inventory Control | 1 | 3 | 68 | 234 |
| 297 | Urban Geography | 1 | 3 | 311 | 904 |
| 297 | Corporate governance | 1 | 3 | 447 | 1.1K |
| 297 | Public opinion | 1 | 3 | 930 | 2.7K |
| 297 | Production Management | 1 | 3 | 1.0K | 2.9K |
| 297 | civilization | 1 | 3 | 783 | 933 |
| 297 | Reservoirs | 1 | 3 | 250 | 707 |
| 297 | lakes | 1 | 3 | 107 | 325 |
| 297 | rare diseases | 1 | 3 | 2.8K | 6.7K |
| 297 | civil service | 1 | 3 | 381 | 1.0K |
| 308 | Political Science | 1 | 2 | 3.3K | 5.6K |
| 308 | Data Mining | 1 | 2 | 4.1K | 9.7K |
| 308 | Travel | 1 | 2 | 1.8K | 4.9K |
| 308 | Regional Development | 1 | 2 | 610 | 1.5K |
| 308 | hazard mitigation | 1 | 2 | 1.7K | 4.1K |
| 308 | Development planning | 1 | 2 | 502 | 1.2K |
| 308 | data collection | 1 | 2 | 2.6K | 6.6K |
| 308 | Urban Areas | 1 | 2 | 373 | 899 |
| 308 | biological monitoring | 1 | 2 | 1.3K | 3.4K |
| 308 | natural disasters | 1 | 2 | 2.6K | 5.7K |
| 308 | Economic planning | 1 | 2 | 548 | 1.4K |
| 319 | Artificial Intelligence | 1 | 1 | 13.2K | 24.9K |
| 319 | Stochastic Processes | 1 | 1 | 2.0K | 4.3K |
| 319 | Latin America | 1 | 1 | 1.1K | 2.7K |
| 319 | Input-output analysis | 1 | 1 | 299 | 807 |
| 319 | Spain | 1 | 1 | 389 | 1.4K |
| 324 | Psychiatry | 1 | 0 | 30.1K | 57.8K |
| 324 | Systems Analysis | 1 | 0 | 2.4K | 6.5K |
| 324 | Primary health care | 1 | 0 | 6.6K | 15.8K |
| 324 | computer networks | 1 | 0 | 4.5K | 9.5K |
