白三叶人工草地数量化管理指数的研究

Quantification index of the management of Trifolium repens artificial pasture

在综合分析影响白三叶人工草地生长发育的管理因子基础上,选择了4个管理因子,进行封闭型管理因子梯度试验设计,模拟草地管理过程。并采用数量化理论I方法,以白三叶单株产草量为因变量,以管理因子为自变量,建立管理指数的回归模型,通过逐步回归筛选出主导因子,以主导因子建立预测方程,编制出了白三叶人工草地数量化管理指数表。该管理指数表经检验符合精度要求,可以对白三叶人工草地进行管理效率的统一评价。

Four factors were selected in this experiment and put into a degree experiment of management factors which aimed to imitate the pasture management process. Based upon the experimental data,the relationship between herbage yield and the management factors were analyzed by using the Quantitative Theory Ⅰ. A management index model of T. repens artificial pasture was then established by following the quantification theory Ⅰ. The model will be able to provide a scientific basis for the evaluation of T. repens artificial pasture management and other grassland types.