δ¹³C values of soil organic matter in semiarid grassland with mesquite (Prosopis) encroachment in southeastem Arizona

Agriculture & Biology

• Prosopis 100%
• soil organic matter 70%
• grasslands 65%
• fire history 40%
• carbon 32%
• C3 plants 30%
• soil carbon 30%
• grasses 27%
• Prosopis velutina 22%
• grazing 20%
• livestock 20%
• alluvium 19%
• fire suppression 19%
• ecosystems 18%
• fire frequency 18%
• soil surface layers 18%
• total organic carbon 15%
• nutrients 15%
• shrublands 13%
• woody plants 13%
• nutrient content 11%
• shrubs 10%
• canopy 10%
• methodology 3%

Earth & Environmental Sciences

• soil organic matter 71%
• grassland 62%
• turnover 34%
• grass 32%
• carbon 28%
• soil carbon 25%
• nutrient 24%
• livestock 23%
• grazing 22%
• C3 plant 16%
• fire history 16%
• woody plant 15%
• ecosystem 14%
• shrubland 14%
• alluvial deposit 13%
• soil layer 11%
• litter 11%
• total organic carbon 11%
• shrub 11%
• canopy 10%
• history 7%
• rate 4%
• effect 2%