Table 1.

Land use type coefficients.

Land use type	Paddy	Dry land	Forest	Shrub	Sparse forest	Other forest
Coefficient	1.0	0.7	0.6	0.6	0.4	0.4

Land use type	Grass (H)	Grass (M)	Grass (L)	Urban	Rural res.	Other built-up
Coefficient	0.6	0.6	0.6	0.8	0.6	0.4

Land use type	River	Lake	Res. & Pond	Shoal	Swamp	Bare land
Coefficient	0.6	0.6	0.6	0.4	0.5	0.2

*“Res.&Pond” is the abbreviation for “Reservoirs and Ponds”.