Related by context. Frequent words. (Click for all words.) 50 soils 50 forestry plantations 50 intensively farmed 50 absorbs carbon dioxide 50 arable crops 49 methane CH4 49 soil salinity 49 CO ² 48 salination 47 adipic acid 47 agrichemicals 47 arid climates 47 irrigated crops 47 acidic soils 46 peat bogs 46 nitrogen phosphorous 46 drylands 46 potent greenhouse gas 46 fertile soils 45 isoprene 45 sludges 45 peat swamps 45 temperate forests 45 CO2 equivalents 45 superphosphate 45 Durum wheat 45 irrigated lands 45 herbicides pesticides 44 arable lands 44 atmospheric CO2 concentrations 44 linseed 44 alkaline soils 44 agro ecological 44 arable 44 carbon dioxide concentrations 44 nitrous oxide emissions 44 atmospheric nitrogen 44 silts 44 CO2 sequestration 44 dryland farming 44 algae biomass 44 biodiversity 43 sulphate 43 Salinity 43 bioenergy crops 43 decaying vegetation 43 geotextiles 43 arable land 43 driest inhabited continent 43 Co2 43 terrestrial ecosystems 43 humic acid 43 organics 43 drained soils 43 biofuel feedstocks 43 deciduous forests 43 arable farming 43 Algal 43 cerrado 43 semi arid 42 Jatropha curcas 42 carbon sinks 42 shrubland 42 organic 42 atmospheric pollutants 42 CO2 Emissions 42 micro climates 42 atmospheric CO 42 acidify 42 peatland 42 crop yields 42 CO2 42 streambanks 42 alkali 42 agricultural 42 moorlands 42 saltbush 42 coniferous forests 42 calcareous 42 Chlorpyrifos 42 biopesticides 42 uplands 42 to#.# [002] 42 recharge groundwater 41 inorganic fertilizers 41 co2 41 Caustic soda 41 atmospheric CO2 41 phyto 41 upper troposphere 41 livestock rearing 41 agro pastoral 41 Residues 41 ecologies 41 lake sediments 41 marine sediments 41 CONSUMPTION 41 biogenic 41 nutrient 41 CH4 41 Geochemistry