TY  - JA
AU  - Hurni,H.
AU  - Nuntapong,S.
TI  - Agro-forestry improvements for shifting cultivation systems. Soil conservation research in northern Thailand
PY  - 1983///
KW  - Agroforestry
KW  - Erosion control
KW  - Forest ecology
KW  - Monsoon climate
KW  - Shifting cultivation
KW  - Soil conservation
KW  - Soil deterioration
KW  - Farming systems
KW  - AGROVOC
N1  - Illustrations, tables, references p. 345
N2  - Large test plots were constructed for soil erosion and conservation determinations on steep mountain slopes (54% grade) at an altitude of 1240 m. The 24X5-m test plots were planted with a mix of traditional swidden and introduced agroforestry systems crops at Mae Muang Luang, Huai Thung Choa research area, 75 km NW of Chiang Mai. During 1981 comparisons were made of runoff, soil loss, labour input, and crop yield. Annual soil losses from agroforestry test plots were 10-22 t/ha or 4-9 times lower than from traditionalupland rice (89 t/ha). Labour inputs were 50-150% higher, but subsistence crop yields were comparable despite a reduction in cultivated area
T2  - Mountain Research and Development
ER  -