Table 1:
Annual mean (1992–2001) water budget for various land uses in Northeast Florida.
Water budget
Urban
Forest
Agriculture
Precipitation,
𝑃
(mm/day)
3.21
3.45
3.36
Evaporation,
𝐸
(mm/day)
3.09
2.96
2.95
Runoff,
𝑅
(mm/day)
N/A
0.01
0.01
∗
𝑑
𝑊
/
𝑑
𝑡
N/A
0.48
0.39
𝐸
/
𝑃
0.96
0.86
0.88
Potential evaporation,
𝑃
𝐸
(mm/day)
5.44
5.67
5.39
𝑃
/
𝑃
𝐸
0.59
0.61
0.62
𝑃
𝐸
−
𝐸
2.36
2.71
2.44
∗
𝑑
𝑊
/
𝑑
𝑡
: soil moisture change with time (
𝑊
= 0–200 mm soil moisture).