论文部分内容阅读
【目的】研究补播不同牧草对醉马草(Achnatherum inebrians)发生区的规律及其稳定性，为筛选出有效的防控方法奠定基础。【方法】2013年在新疆昌吉市阿什里乡山地草甸进行补播试验，在补播后3年对醉马草和可食牧草进行实地监测。【结果】随着补播年限的增加，多数处理的醉马草高度呈下降趋势，盖度和地上生物量为2015年升高，2016年下降；密度具有一定的波动，无明显规律性；可食牧草的高度、盖度均与醉马草的变化呈负相关，密度也具有波动性，但地上生物量表现为持续上升趋势。B2（单播紫花苜蓿(Medicago sativa)）处理对醉马草种群特征的抑制效果相对较强，同时对可食牧草的各指标有促进作用。【结论】在醉马草发生区单播紫花苜蓿，从而达到生态修复、长久控制醉马草的目标。
【Objective】 The objective of this study was to study the regularity and stability of the areas where Achnatherum inebrians was replenished by different forages and lay the foundation for screening effective prevention and control methods. 【Method】 Rewet experiments were conducted in the meadow of mountainous Ashley, Changji, Xinjiang in 2013, and 3-year monitoring of drunken horse and edible pasture were conducted in the field. 【Result】 With the increase of sowing time, most of the treated Bupleurum showed a decreasing trend. The cover and aboveground biomass increased in 2015 and decreased in 2016; the density had some fluctuations and no obvious regularity; The height and cover of pasture were negatively correlated with the change of M. dromedary and the density was also fluctuant, but the aboveground biomass showed a continuous upward trend. B2 (Medicago sativa) treatment had a relatively strong inhibitory effect on the population characteristics of B.masekii, and promoted the growth of each index of edible pasture. 【Conclusion】 Alfalfa was uniaxially sowed in the area of drunken horse so as to reach the aim of ecological restoration and long-term control of drunken horse.