Related by context. Frequent words. (Click for all words.) 55 irrigated crops 50 irrigated 50 grassland 49 pastureland 49 cropland 49 arid 47 overgrazed 46 croplands 46 fertile soils 46 aridity 46 grasslands 45 pine plantations 45 arable 45 tallgrass prairie 45 semi arid 44 arid regions 44 arable land 44 farmland 43 Arid 43 forbs 43 cereal crops 43 irrigated agriculture 43 hardwood forests 42 arable lands 42 semiarid 42 arid desert 42 uplands 42 drylands 42 fens 42 rangelands 42 cultivable 42 fertile plains 41 wetland 41 rainless 41 savanna 41 Severe drought 41 cattle grazing 40 landmass 40 soils 40 lowlands 40 wetland habitats 40 rangeland 40 farmlands 40 overgrazing 40 lowland 40 fertile farmland 40 irrigate 40 prairie grasses 39 acreage 39 plains 39 urbanized 39 Soil moisture 39 topsoil moisture 39 drier 39 Droughts 39 irrigate crops 39 perennial grasses 39 grazing 39 nomadic herders 39 land 39 peatland 39 sandy soil 39 vegetation 39 uncultivated 39 dry 39 bottomland 39 climatically 39 river deltas 39 agricultural 39 peat bogs 38 brackish 38 acidic soil 38 forestland 38 wetland habitat 38 prairie 38 citrus groves 38 floodplains 38 wetlands 38 barren 38 sown crops 38 brackish water 38 salt tolerant 38 prolonged drought 38 western Corn Belt 38 woodlands 38 sandy soils 38 groundwater recharge 38 drained soils 38 forested 38 tall fescue 38 livestock manure 38 pasture 38 unplanted 38 river valleys 38 livestock grazing 37 Switchgrass 37 temperate zones 37 Fertile Crescent 37 Plantings 37 coarse grains 37 understory