Abstract
The area of agricultural land in Quoc Oai District is quite large of 9949,0 hectares, accounting for 65,83% of total area of the district. The study have identified 77 land use systems (LUS) which are based on 56 land units and 7 major land use types. The effectiveness of ecological adaptability, economics, social and environment is evaluated and allows to determine main developed fields in agricultural production, consistings of: wet rice, rice-fish, fruit trees, tea, short-day plants, forest (acacia) and aquaculture. Fruit trees is a land use types which have wide ecological adaptability area, the best economic effectiveness (168.4 million/ha/year), the local people's priorities, low negative impact on the environment. LUS evaluation process described in this paper can be applied to other districts which have an agricultural area in Ha Noi.
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