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根据样地调查、解析木和气象资料,拟合了晋西刺槐(Robinia pseudoacacia Linn.)人工林基于耗水量的幂函数密度调控模型。其中,以单株材积连年生长量和单株胸径连年生长量表示的模型拟合效果较好。研究表明,干旱、半干旱区有必要在传统密度控制图基础上,以水分资源环境容量为基点,以不同林龄水分消耗与降水资源平衡原则,制定基于降水量的不同林龄林分密度控制图。
According to the plots survey and wood and meteorological data analysis, the model of power function density control based on water consumption of Robinia pseudoacacia Linn. Plantation was fitted. Among them, the models with the annual growth volume per plant volume and DBH per plant showed good fitting results. The research shows that in the arid and semi-arid areas, it is necessary to base on the traditional density control chart, taking the environmental capacity of water resources as a starting point, and based on the principle of balance between water consumption of different ages and precipitation resources, the density control of different stand ages based on precipitation Figure