Study on Spatial Optimization Allocation of Land Use in the Typical Red Soil Hilly Region in South China
典型红壤丘陵区土地利用空间优化配置

On the basis of the analysis of land use structure, land suitability evaluation, experimental data of Qianyanzhou Station and the household investigation data, the methodology and technique based on a linear programming model in combination with GIS is applied to a case study for spatially optimal allocation of land resource with definite quantity and quality in Qianyanzhou. The conclusions are as follows: (1) Despite the progress made in agriculture through land use structure change in red soil region, the proportion of artificial grassland is very low and the use of natural grassland is inefficient, which leads to the secular stagnation of herbivorous animal husbandry. (2) The optimal scenario results can be produced by a linear programming model, which is based on a set of technical coefficients structured in an objective function and a set of constraints to be provided by GIS. (3) The optimal scenario results show that the structure of grain-horticulture-forestry in the presented scenario has been converted to the structure of grain-horticulture-animal husbandry-forestry in the optimal scenario.