Soil Health Management under Hill Agroecosystem of North East India

Table 6

(a) Pretreatment (year) precipitation, storm flow, peak flow rate in different land use systems. (b) posttreatment water yield, base flow, and peak flow in different land use systems (average of nine years).

(a)

Land use system	Precipitation (mm)	Threshold rainfall (mm)	Total water yield (mm)	Total water yield (% of rainfall)	Surface runoff (mm)	Peak flow (mm hr^−1)
Dairy based farming	2249.30	363.20	27.21	1.20	27.21	3909
Forestry block	2249.30	399.90	655.21	29.12	54.30	16.94
Agroforestry	2249.30	533.70	32.55	1.45	9.90	6.17
Agropastoral	2249.30	364.30	25.50	1.13	25.50	31.86
Agrohortisilvipastoral	2249.30	348.60	4.10	0.18	4.10	10.45
Natural fallow	2249.30	541.70	2.87	0.13	2.87	13.65
Shifting cultivation	2249.30	1634.5	15.88	0.70	15.88	35.30

(b)

Land use systems	Annual water yield range (mm)	Mean water yield (mm)	Mean water yield (% of annual rainfall)	Maximum peak flow (mm hr^−1)
Dairy based farming	0–66.699	9.56	0.37	7.81
Forestry block	67.42–1013.88	371.90	4.73	13.54
Agroforestry	39.31–648.26	241.14	9.55	12.87
Agropastoral	0.60–62.49	12.47	0.69	20.71
Agrohortisilvipastoral	0.24–121.91	28.98	1.14	12.07
Natural fallow	0–51.39	11.77	0.46	4.49
Shifting cultivation	0–517.72	102.94	4.07	86.10

Source: [21].