那拉提山地草甸草地划区轮牧与自由放牧效果的对比分析

为研究天然草地的合理利用技术,选择在新源县那拉提山地草甸草地,进行划区轮牧与自由放牧对成年绵羊体重增加的影响试验.结果表明:划区轮牧放牧后期可食牧草现存量明显高于自由放牧(P<0.01),并在一定程度上可以抑制毒害草的生长.试验后期轮牧区绵羊日增重显著(P<0.05),高于自由放牧区,经济效益也高于自由放牧区.试验结果表明轮牧可以减轻草地利用强度,有利于草地植被的恢复.

Contrast Analysis of the Result Between Rotation Grazing and Uncontrolled Grazing in Nalati Mountain Meadow

The meadow grassland of Nalati mountain region in Xinyuan county was chosen to analyze the application of reasonable technique to natural grassland and to make the experiment on influence of rotational grazing and uncontrolled grazing on the sheep's weight gain.The results show that in rotational grazing's final time,the stock on hand of edible grasses respectively is obvious higher than that in uncontrolled grazing.And it can also control the poisonous weeds' growth.In the final time,the sheep's daily weight gain of rotational grazing is apparently higher than that in uncontrolled grazing(P<0.05) and its economic performance is also higher than that of uncontrolled grazing.This experiment's result indicates that rotational grazing could alleviate the utilize intensity of grassland vegetations recovery.