Agriculture & Biology
soil carbon
81%
soil organic carbon
77%
inorganic carbon
75%
spatial distribution
56%
land cover
47%
China
43%
nitrogen
39%
carbon
34%
urbanization
29%
roadsides
25%
urban soils
25%
total nitrogen
15%
land use
15%
soil
13%
suburban areas
13%
residential density
10%
shelterbelts
7%
biogeochemistry
7%
urban parks
7%
green infrastructure
7%
forest nurseries
7%
urban population
6%
carbon sinks
6%
biogeochemical cycles
5%
topsoil
5%
urban areas
5%
roads
5%
environmental impact
5%
soil sampling
4%
orchards
4%
plantations
4%
Earth & Environmental Sciences
greenspace
100%
soil nitrogen
78%
soil carbon
69%
spatial distribution
47%
inorganic carbon
43%
organic carbon
34%
soil
28%
carbon
19%
land cover
19%
urbanization
13%
urban site
11%
nitrogen
8%
suburban area
8%
land use
6%
shelterbelt
4%
environmental consequence
4%
orchard
3%
green space
3%
biogeochemical cycle
3%
urban population
3%
biogeochemistry
3%
topsoil
3%
plantation
3%
urban area
2%
road
2%
city
1%
effect
0%