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从植被生长和风沙活动之间的相互作用机制出发,建立了植被-风沙动力耦合模型。模型包括生物量动力学方程和风蚀量动力学方程。生物量动力学方程主要考虑了植被生产潜力在植被覆盖地表和非植被覆盖地表上的转化、生物量自身消耗以及风蚀量对生物量的影响;风蚀量动力学方程主要考虑风蚀潜力在流沙地表和非流沙地表上的转化以及生物量对风蚀量的影响。根据我国北方半干旱地区相关研究成果对模型中的参数取值进行了探讨,以便进行模拟和应用研究。
Based on the interaction mechanism between vegetation growth and wind-blown sand activities, a dynamic coupling model of vegetation-wind-blown sand was established. The model includes the kinetic equation of biomass and the equation of wind erosion. The kinetic equation of biomass mainly takes into account the transformation of vegetation potential on the surface covered by vegetation cover and non-vegetation cover, the biomass itself consumption and the impact of wind erosion on biomass. The wind erosion kinetic equation mainly considers the potential of wind erosion on the surface and The conversion of non-quicksand on the surface and the effect of biomass on wind erosion. According to the related research results of the semi-arid areas in northern China, the parameter values in the model are discussed for the simulation and applied research.