Related by context. All words. (Click for frequent words.) 69 semi arid regions 68 semiarid regions 67 arid 64 semi arid 64 infertile soils 61 arid lands 61 arid climates 60 drylands 59 semi arid climates 57 desertified 57 semiarid 57 hotter drier 57 irrigated crops 56 prolonged droughts 56 humid tropics 56 temperate forests 56 semi arid Sahel 56 wetter climates 56 aridity 55 Semi arid 55 severe droughts 55 temperate zones 55 irrigated agriculture 55 rainfed agriculture 55 periodic droughts 55 saline soils 55 subtropical regions 55 salty soils 54 alkaline soils 54 arid semi arid 54 frequent droughts 54 hotter drier summers 54 acidic soils 53 temperate grasslands 53 drier climates 53 overgrazing deforestation urban sprawl 53 arid climes 53 temperate regions 53 wetter winters 53 soils 53 tropical subtropical 53 desertification 53 Saltcedar 52 harsher climates 52 semi arid lands 52 Droughts 52 drier summers 52 droughty 52 climatic variations 52 Ogallala aquifer 52 agriculturally productive 52 climatic conditions 52 humid climates 52 boreal regions 52 drier soils 52 dryland farming 52 Seagrasses 51 refugia 51 climatic extremes 51 irrigate farmland 51 river basins 51 parches 51 Tropical rainforests 51 groundwater depletion 51 Cheatgrass 51 overgrazing deforestation 51 Snake River Plain 51 fertile soils 51 groundwater basins 51 semiarid climate 51 fungus thrives 51 Desertification 51 climatic variability 51 grassland ecosystem 51 subtropics 51 seagrass meadows 51 arid Sahel 51 lygus 51 parched deserts 51 warmer wetter 51 temperate climates 50 mixed conifer forests 50 prolonged drought 50 ecoregions 50 soggy soils 50 topsoils 50 intensively cultivated 50 bunchgrass 50 hydrological cycle 50 grasslands 50 crop yields 50 colder wetter 50 Locust swarms 50 Prolonged droughts 50 desertlike 50 overpumped 50 Seawater desalination 50 Conservation tillage 50 mountain snowpacks 50 irrigated 50 combating desertification 50 ponderosa pine forests 50 alkaline soil 50 Multiple wildfires scorch 49 tobacco budworm 49 sunny climates 49 deforestation desertification 49 grassland ecosystems 49 northerly latitudes 49 biodiverse ecosystems 49 megadrought 49 arid soils 49 coniferous forests 49 acidic oceans 49 Purple loosestrife 49 semi arid tropics 49 Hotter drier 49 overspreading 49 irrigated farmland 49 cultivatable land 49 inhospitable environments 49 warmer drier summers 49 calcareous soils 49 moist soils 49 rapidly urbanizing 49 subtropical climates 49 Lake Untersee 49 riparian habitats 49 southern latitudes 49 spruce fir forests 49 degraded soils 49 mesic 49 driest deserts 49 midlatitude 49 downy brome 49 biodiversity hotspot 49 droughts 49 sparsely vegetated 49 arid desert 49 sparse vegetation 49 warmer wetter winters 49 underground aquifers 49 Semi Arid Lands 49 subarctic regions 49 spur throated locust 49 biome 49 climates 49 arable land 49 semidesert 49 Spotted knapweed 49 Semi Arid 48 rangelands 48 glacial melt 48 Prolonged drought 48 nesting bald eagle 48 drier warmer 48 driest inhabited continent 48 cyclical droughts 48 Arable land 48 sub tropic 48 shrublands 48 Sahel 48 irrigating crops 48 tamarisk 48 midlatitudes 48 Yangtze basin 48 sagebrush plains 48 pasture grasses 48 Indo Gangetic plain 48 parching 48 river deltas 48 terra preta 48 tropical climates 48 hotter climates 48 xeric 48 playa lakes 48 locust infestation 48 Cape Floristic Region 48 juvenile salmonids 48 mammal extinctions 48 peat lands 48 favors fieldwork 48 wolverine habitat 48 grasshopper populations 48 N2O emissions 48 Arid 48 humid subtropical 48 Hotter drier weather 48 drier winters 48 dryland agriculture 48 smallholder farms 48 grassland habitats 48 dryland crops 48 tropical savanna 48 sandy soils 48 freshwater 48 montane forests 48 arid grasslands 48 acidic soil 48 irrigated cropping 48 deciduous forests 48 aquatic fauna 48 agro ecological zones 48 spring snowmelt runoff 48 Melting glaciers 48 irrigated lands 48 El Niños 48 nomadic cattle herders 48 groundwater pumping 48 Cogon grass 48 recurrent droughts 48 soil salinity 47 drought tolerant 47 alluvial soils 47 mono cropping 47 Turkana Basin 47 arid deserts 47 freshwater lakes 47 evapo transpiration 47 johnsongrass 47 wintering birds 47 Indo Gangetic plains 47 Amazonian forest 47 rapidly urbanising 47 aquifer depletion 47 locust upsurge 47 ectotherms 47 Sahel belt 47 invertebrate fauna 47 glacier retreat 47 rainfed crops 47 brackish groundwater 47 tropic regions 47 La Niñas 47 biodiversity hotspots 47 Lake Yoa 47 desalinating seawater 47 tropical latitudes 47 forbs 47 monoculture crops 47 groundwater aquifers 47 biofuel crops 47 salt cedar 47 microhabitats 47 overgrazed 47 nomadic pastoralists 47 solar insolation 47 soil carbon sequestration 47 Spider mites 47 delicate ecosystems 47 stony soils 47 nitrogen deposition 47 grassy savannah 47 groundwater aquifer 47 locust plagues 47 mid latitudes 47 woody shrub 47 cropland 47 salination 47 Irrigated agriculture 47 biologically diverse regions 47 Mild winters 47 deep convective clouds 47 atmospheric circulation 47 Pygmy rabbits 47 Polar Regions 47 subtropical climate 47 Armyworms 47 arid plains 47 arable farmland 47 drought tolerant crops 47 polar latitudes 47 Soil moisture 47 Sonoran pronghorns 47 wetter summers 47 prairie potholes 47 La Niña pattern 47 forested watersheds 47 mule deer herd 47 alluvial plains 47 southerly latitudes 47 eucalyptus plantations 46 Buffelgrass 46 creeping northward 46 drought resistant 46 plant hardiness zones 46 silvery minnow 46 Prosopis 46 montane 46 Modoc Plateau 46 drier 46 native pollinators 46 terrestrial ecosystems 46 halogenated gases 46 grassland birds 46 overgrazing 46 irrigable land 46 Overgrazing 46 pollinating insects 46 insect populations 46 carbon fluxes 46 C4 grasses 46 gravelly soils 46 nomadic herding 46 basins 46 Dr Trewin 46 Boreal forests 46 acid soils 46 sorghum varieties 46 riparian ecosystems 46 locust infestations 46 cerrado 46 Severe drought 46 streambanks 46 Harvesting rainwater 46 tadpole shrimp 46 halophyte 46 Namib desert 46 freshwater habitats 46 cheatgrass 46 habitats 46 salicornia 46 soil salinization 46 perennial grasses 46 depleting aquifers 46 drought stricken 46 phytoplankton blooms 46 Taklimakan 46 Rijsberman 46 hypersaline 46 heavier rainfalls 46 tropical savannah 46 unirrigated 46 cold climates 46 anaerobic microbes 46 epiphytic 46 soil moistures 46 aquifers 46 Earth biosphere 46 shallow aquifers 46 grainbelt 46 El Niño winters 46 Norte Chico 46 nitrogen fertilization 46 rainfed 46 algal biofuel 46 driest continent 46 orangutan populations 46 Switchgrass 46 whitebark pines 46 montane forest 46 hydrological cycles 46 hydrologic cycle 46 larval habitats 46 poleward shift 46 savannahs 46 freshwater impoundments 46 cyclonic storms 46 Ankole cattle 46 Alligator gar 46 northern boreal forests 46 wheat midge 46 Armyworm 46 Pastoralist communities 46 Nielsen Gammon 46 broadleaf forests 46 anthropogenic greenhouse gases 46 nematode species 46 Loess Plateau 46 Abundant rainfall 46 overuses antibiotics 46 freshwater ecosystems 46 spur throated locusts 46 cratered highlands 46 rangeland grasses 46 Mediterranean basin 46 fertile topsoil 45 orchardgrass 45 Eld deer 45 highly erodible 45 root knot nematodes 45 hotter drier weather 45 Subsistence farmers 45 coniferous forest 45 waterlogged soils 45 increased storminess 45 durum crop 45 clay soils 45 Brackish water 45 parched soils 45 river catchments 45 atmospheric nitrogen 45 oilseed crops 45 malaria vectors 45 lianas 45 gopher frogs 45 oligotrophic 45 desertified land 45 snail kites 45 cereal crops 45 poleward 45 megadroughts 45 smartweed 45 xeriscapes 45 diatom species 45 drained soils 45 Thrips 45 salinization 45 desert locust 45 sage scrub 45 lowland plains 45 snowpack melts 45 melting snowpacks 45 arable lands 45 Zambezi Basin 45 anthropogenic emissions 45 watertable 45 groundwaters 45 Meningitis Belt 45 coastal upwelling 45 becomes scarcer 45 tropics 45 Lahontan cutthroat 45 photosynthesise 45 Saharan Desert 45 Sahelian 45 Dryland wheat 45 Unep 45 Warmer wetter weather 45 evening grosbeak 45 chalky soil 45 willow flycatcher 45 Streamflows 45 croplands 45 Sphagnum 45 pastoralist communities 45 Zooplankton 45 smallholder agriculture 45 salt cedars 45 salt tolerant 45 Fall armyworms 45 biodiverse regions 45 Azolla 45 Soil erosion 45 hottest driest 45 jatropha shrub 45 nitrate concentrations 45 sulphate aerosols 45 biting midges 45 locust breeding 45 buffelgrass 45 equatorial rainforests 45 permafrost degradation 45 prairie pothole region 45 Lake Champlain basin 45 urbanization industrialization 45 algal species 45 decaying vegetation 45 peat soils 45 freshwater snails 45 Romero Lankao 45 warmer drier 45 equatorial regions 45 Geomyces destructans 45 hotter summers 45 Renewable energies 45 conifer forests 45 lowland forests 45 Irrigated 45 bark beetle infestations 45 sage grouse populations 45 vaquita porpoise 45 sagebrush steppe 45 Gregg Garfin 45 Sahelian countries 45 brook lamprey 45 towering icebergs 45 wetland ecosystem 45 waterfowl habitats 45 aphid populations 45 Moapa dace 45 Saharan Africa 45 waterfowl nesting 45 salt marsh mosquitoes 45 atmospheric CO2 levels 45 pocket gophers 45 migratory bird species 45 bottomland forests 45 foehn 45 transmountain diversions 45 atmospheric CO2 concentration 45 ecosystems 45 agro biodiversity 45 evapotranspiration 45 Tall fescue 45 grasses 45 broadacre crops 45 forage grasses 45 topsoil moisture 45 grazed pastures 45 aquatic habitats 45 vesper bats 45 farmable 45 salinity 45 autonomous Xinjiang Uyghur 45 mountain glaciers 45 latitudes 45 glacier melt 45 drought tolerant maize 45 Cauvery delta 45 rainfed farming 45 depleted aquifers 45 faunas 45 dryland farmers 45 Cactuses 45 acidifying oceans 45 Warmer climates 45 warm climates 45 Bantu tribes 45 milder climates 45 monsoonal moisture 45 Indus Ganges 44 Ozone depletion 44 Water hyacinth 44 wetland ecosystems 44 desert locusts 44 species 44 La Ninas 44 Nile basin 44 agro climatic conditions 44 creosote bush 44 nutrient runoff 44 relatively mild winters 44 sweetpotato 44 shortgrass prairie 44 tundra vegetation 44 malaria vector 44 river basin 44 white sided jackrabbit 44 Rapid urbanization 44 Hine emerald dragonfly 44 desalinisation 44 riparian forest 44 intermountain west 44 deserts 44 harlequin frog 44 megafauna 44 Chihuahuan Desert 44 DTN Meteorlogix Weather Service 44 cooler wetter 44 irrigate crops 44 atmospheric oceanic 44 endangered subspecies 44 wetter 44 biofuel feedstocks 44 hardier varieties 44 alien invasive species 44 Drip irrigation 44 Sonoran desert 44 Svaliava 44 Severe droughts 44 manmade reservoirs 44 wind pollinated 44 parched 44 highbush blueberries 44 milder winters 44 spotted knapweed 44 reed canarygrass 44 ecologically delicate 44 bristlecone pines 44 atmospheric CO2 concentrations 44 amphipods 44 grow yerba mansa 44 yellow starthistle 44 Riparian Areas 44 evergreen forests 44 drought parched 44 subalpine 44 Rangelands 44 Mongolian steppes 44 carbon sinks 44 salamander species 44 nonnative grasses 44 recharge underground aquifers 44 crested wheatgrass 44 mosquito vector 44 subglacial lakes 44 Aquifers 44 Arundo 44 Damaraland 44 Terra Preta 44 locust swarms 44 devouring insects 44 streamflows 44 sandy soil 44 thermophiles 44 loamy soil 44 ° C warmer 44 warmer moister 44 groundwater recharge 44 desalinisation plants 44 pollinator habitat 44 mega deltas 44 livestock rearing 44 Succulents 44 temperate climes 44 sedge meadows 44 C4 photosynthesis 44 desalinization plants 44 potent greenhouse gas 44 AGRA Middle East 44 white oak acorns 44 pikas 44 terrestrial mammals 44 Dry Valleys 44 mule deer populations 44 shelterbelt 44 biomasses 44 tallgrass prairies 44 hypoxic zone 44 river drainages 44 equatorial forests 44 Qinghai Tibet plateau 44 Bighorn Basin 44 nutrient depletion 44 Subarctic 44 single celled algae 44 arid Sahel belt 44 forage sorghums 44 rangeland 44 chemical fertilizers herbicides 44 Succulent Karoo 44 Dasht e Kavir 44 moisture retentive soil 44 upland soils 44 temperate rainforest 44 La Nina pattern 44 upwellings 44 millets 44 Desert tortoises 44 Trans Pecos region 44 epiphytes 44 phytophthora 44 Guayule 44 Tibetan Plateau 44 harsh climates 44 stingless bees 44 oceanic islands 44 nitrogen fixers 44 hydric 44 cyanobacterial blooms 44 rhizosphere 44 Mosquito larvae 44 genebanks 44 overwatered 44 Sub Saharan Africa 44 locust outbreak 44 arid savannah 44 insect outbreaks 44 nitrogen fixing 44 Arlen Huggins 44 cork oaks 44 boreal forests 44 freshwater swamps 44 bottomland hardwood forests 44 understorey 44 shadowed craters 44 Kalahari Desert 44 bighorn habitat 44 treeless plains 44 irrigated croplands 44 gravelly sandy 44 woody plants 44 biodiverse 44 Ozark aquifer 44 rainfed areas 44 transboundary 44 ghaf 44 saturated soils 44 clay loam soil 44 photosynthetic organisms 44 IWMI 44 deepwater corals 44 woodrats 44 eastern lowland gorilla 44 drift eastward 44 moisture retentive 44 lodgepole pine forest 44 Witwatersrand Basin 44 unlogged forests 44 threatened delta smelt 44 savannah grasslands 44 eastern Corn Belt 44 soil moisture 44 Nitrate contamination 44 treeless plain 44 prairie pothole 44 Defoliation 44 nonnative invasive 44 biotope 44 Dryland cotton 44 replenish aquifers 44 Pine beetles 44 borne spores 44 freshwaters 44 McMurdo Dry Valleys 44 wheat stem sawfly 44 Birimian Greenstone Belt 44 sub Saharan Africa 44 luxuriant vegetation 44 saline intrusion 44 Titan arum 44 Lodgepole pine 44 drier hotter 44 intensively farmed 44 breadbaskets 44 alfalfa weevil 44 #.#oC [001] 44 aerosol concentrations 44 Santa Ana sucker 43 riparian zones 43 colder winters 43 rabbitbrush 43 desalinating sea water 43 clivias 43 Kelp forests 43 bryophytes 43 urbanization 43 Subterranean termites 43 grassland 43 underwatering 43 eastern tent caterpillars 43 wireworms 43 yellow anacondas 43 Arsenic contamination 43 semitropical 43 Soil moisture levels 43 Hydroelectric dams 43 Invasive plants 43 diatoms 43 Hindu Kush Himalaya 43 riparian woodlands 43 shrubland 43 Ontario Lacus 43 riparian corridors 43 FEWS Net 43 freshwater fishes 43 Late Paleozoic 43 peat swamps 43 Serengeti plains 43 beech forests 43 eutrophic 43 grassy plains 43 Nerica rice 43 sugar cane cultivation 43 mudsnail 43 silvery needle 43 smooth brome 43 driest continents 43 Florida betony 43 rodent borne diseases 43 massasauga 43 biofuel feedstock 43 shade tolerant 43 sunspot cycles 43 habitat 43 alluvial plain 43 ecoregion 43 Ips beetles 43 Tarim River 43 storminess 43 CO2 sequestration 43 oilseed crop 43 Barind 43 carbon sequestration 43 trembling aspen 43 whitebark pine seeds 43 tarsalis 43 aquatic ecosystems 43 ecological overshoot 43 desalinized water 43 Drought tolerant 43 warmwater fish 43 lesser flamingos 43 Indus basin 43 maize cultivation 43 arid Sahel region 43 damming rivers 43 endemic species 43 Whitebark pines 43 Faghur Basin 43 wintering ducks 43 Cyanobacteria 43 insect pollination 43 wintering habitat 43 tall fescues 43 Aedes albopictus 43 Multiple Species 43 saltcedar 43 arid expanse 43 endangered rainforests 43 Vernal pools 43 ponderosas 43 scorching summers 43 Deserts 43 nitrogen fertilizers 43 absorbs carbon dioxide 43 seas droughts floods 43 Katharine Willett 43 insect pollinated 43 Festuca 43 pine savannas 43 coldest driest 43 Amundsen Sea 43 glaciers retreated 43 Noah Diffenbaugh 43 inorganic fertilizers 43 climatologically 43 Drought tolerant plants 43 Lake Balkhash 43 endangered arroyo toad 43 underground aqueducts 43 freshwater aquaculture 43 Argentine ants 43 salina 43 Bolson tortoise 43 nine banded armadillo 43 anthropogenic CO2 emissions 43 miscanthus grass 43 waterbird species 43 desal plants 43 colder climates 43 Kittlitz murrelet 43 Mule deer 43 voracious insects 43 freshwater ponds 43 moist soil 43 Syr Darya 43 mightiest rivers 43 Disi aquifer 43 forage 43 paleoenvironmental 43 pinyon pines 43 gambusia 43 soil fertility 43 amphibian populations 43 tiger salamanders 43 forage crops 43 fungal spores 43 Aral Sea 43 cyst nematodes 43 coral ecosystems 43 tall fescue grass 43 San Bernardino kangaroo rat 43 Bt crops 43 locust outbreaks 43 native perennial grasses 43 humid tropical 43 seed dispersers 43 Drought stricken 43 grazing pastures 43 subtropical oceans 43 seawater intrusion 43 Arctic Caribou Herd 43 salinated 43 Seasonal rains 43 Milder winters 43 sorghum sudan 43 nomadic peoples 43 soil crusting 43 Perennial ryegrass 43 permafrost thaws 43 Devils Hole pupfish 43 salinities 43 receding glaciers 43 dry airmass 43 ecologies 43 Kaibab Plateau 43 wine grape varieties 43 Oklahoma Panhandles 43 freshwater aquifers 43 biologically diverse 43 Showery 43 prairie grasslands 43 Migrating birds 43 wintering waterfowl 43 waterbird populations 43 insolation 43 amphibian habitat 43 Anopheles 43 El Nino Southern Oscillation 43 FAR WEST TEXAS 43 Kara Kum 43 inundate coastal 43 temperate 43 meltwater stonefly 43 La Nina phenomenon 43 anthropogenic aerosols 43 green manures 43 salinisation 43 mycorrhizal fungi 43 freshwater mollusks 43 hydrological drought 43 depleting fossil 43 ungrazed 43 insect pollinators 43 fertile cropland 43 blister rust 43 Roadless areas 43 Bermudagrass 43 humus rich 43 monoculture farming 43 sandier soils 43 Appy Sluijs 43 fir forests 43 grassland habitat 43 tebuthiuron 43 australis 43 monoculture plantations 43 Sahel region 43 Greater Yellowstone Ecosystem 43 fringe toed lizard 43 western Corn Belt 43 pollen dispersal 43 plant parasitic nematodes 43 overpumping 43 irrigable 43 nutria ate 43 Gambel quail 43 Forested 43 aquatic insect 43 Prairie Pothole 43 Miocene epoch 43 muhly 43 nonnative weeds 43 grape cultivation 43 nitrogen fixation 43 el Nino 43 desalinated seawater 43 nematode populations 43 Cambodia Cardamom Mountains 43 hot humid climates 43 forest ecosystems 43 juniper woodlands 43 pheasant populations 43 allergenic pollen 43 fertile lowlands 43 clathrates 42 drought tolerant varieties 42 estuarine habitats 42 Drylands 42 groundwater 42 coastal sage scrub 42 irrigation 42 chalky soils 42 fescue pastures 42 bristlecones 42 depleting groundwater 42 basin 42 Soil compaction 42 Quagga Mussels 42 pinyon trees 42 planktons 42 Hellas Planitia 42 bacterial decomposition 42 harvested rainwater 42 shortgrass 42 broad leaved 42 rich loamy soil 42 Albertine Rift 42 dry deciduous forests 42 hyper saline 42 parched landscape 42 legume crop 42 Feral hogs 42 benthos 42 endangered silvery minnow 42 shelterbelts 42 tropical forests 42 abiotic stresses 42 glacier shrinkage 42 carbon dioxide concentrations 42 piñon pines 42 tropical coral reefs 42 climatically suitable 42 Stratospheric ozone 42 widespread diarrheal disease 42 arid terrain 42 mussel species 42 Giant salvinia 42 loams 42 halophytes 42 desiccation 42 Scattered rains 42 subalpine meadows 42 ENSO cycle 42 Chinch bugs 42 eucalypt forests 42 Ogallala Aquifer