Joanne Smith

Agriculture & Biology

1. biogas 61%
2. soil organic carbon 58%
3. soil carbon 55%
4. soil 53%
5. greenhouse gas emissions 42%
6. Ethiopia 39%
7. carbon sinks 39%
8. Sub-Saharan Africa 39%
9. households 37%
10. farming systems 36%
11. carbon 35%
12. organic carbon 34%
13. peatlands 33%
14. mineral soils 33%
15. nitrogen 31%
16. land use change 30%
17. climate change 30%
18. carbon dioxide 27%
19. plantations 23%
20. soil organic matter 23%
21. soil fertility 22%
22. soil respiration 22%
23. energy crops 22%
24. Elaeis guineensis 22%
25. climate 22%
26. short rotation forestry 22%
27. carbon sequestration 21%
28. cropland 20%
29. crops 20%
30. land use 20%
31. peat 19%
32. farms 19%
33. farmers 19%
34. greenhouse gases 19%
35. soil properties 18%
36. United Kingdom 18%
37. nitrogen fertilizers 18%
38. fertilizers 17%
39. tillage 17%
40. soil texture 17%
41. highlands 16%
42. nitrous oxide production 16%
43. energy 16%
44. willows 15%
45. nutrients 15%
46. ecosystem services 15%
47. animal manures 14%
48. anaerobic digestion 14%
49. Wales 14%
50. Uganda 13%