Related by context. Frequent words. (Click for all words.) 57 photosynthesis 55 evaporation 51 absorb carbon dioxide 50 photosynthetic 50 respiration 49 soil compaction 47 soil erosion 47 nutrients 47 vegetation 47 albedo 46 evaporative 46 sequester carbon 46 alkalinity 45 nitrogen 45 groundwater recharge 44 soil fertility 44 secretion 44 water vapor 44 sedimentation 43 understory 43 fertilization 43 regrowth 43 germination 43 nitrogen fertilizers 43 Vegetation 43 carbon sequestration 43 crop residue 43 nutrient 42 fertilizing 42 pollination 42 salinity 42 nitrous oxide emissions 42 oxygenation 42 carbon dioxide 42 fertilizers pesticides 42 compaction 42 woody plants 42 chlorophyll 41 atmospheric carbon dioxide 41 fruiting 41 aeration 41 Nitrogen 40 atmospheric circulation 40 soil moisture 40 sebum 40 adsorption 40 aerate 40 irrigation 40 grasses 40 groundwater pumping 40 electrical conductivity 40 oxygen 40 sweat glands 40 Carbon dioxide 40 lignin 39 ammonium 39 digestion 39 carbon sinks 39 atmospheric CO2 39 oxidation 39 reflectance 39 hydrolysis 39 algal 39 percolation 39 fertilize 39 pH 39 nitrogen fertilizer 39 conservation tillage 39 snowmelt 39 CO2 39 conductivity 39 impervious surfaces 39 phytoplankton 39 moisture 39 dieback 39 absorption 38 chemical fertilizers 38 irrigates 38 soils 38 secretions 38 dehydrate 38 prairie grasses 38 irrigate 38 corn stover 38 stormwater runoff 38 oxidant 38 eutrophication 38 fertilizers 38 biochemical reactions 37 pollen 37 soil pH 37 calcium absorption 37 watering 37 moist soil 37 native grasses 37 metabolism 37 polymerization 37 dissolved oxygen 37 invasive weeds 37 muscle contractions 37 vegetated