补播对醉马草发生区防控效果的动态研究

发布时间：2018-11-27 07:29

【摘要】：【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。
[Abstract]:[objective] to study the regularity and stability of different forage forages on the occurrence area of (Achnatherum inebrians), and to establish a foundation for screening effective control methods. [methods] A supplementary seeding experiment was carried out in the mountain meadow of Ashley Township, Changji City, Xinjiang in 2013. Results: with the increase of supplementary sowing years, the height of most treatments showed a downward trend, the coverage and aboveground biomass increased in 2015 and decreased in 2016. The density has certain fluctuation, no obvious regularity; The height and coverage of edible herbage were negatively correlated with the changes of the herbage, and the density was also fluctuating. But the aboveground biomass showed a continuous rising trend. B2 (single seeded alfalfa (Medicago sativa) treatment) had a relatively strong inhibitory effect on the population characteristics of Elaeagnus sinensis. At the same time, it can promote the indexes of edible forage. [conclusion] the alfalfa can be seeded in the ecotypic area, so as to achieve the goal of ecological restoration and long-term control of drunken horse grass.
【作者单位】：新疆农业大学草业与环境科学学院/新疆草地资源与生态重点实验室;新疆昌吉市草原站;
【基金】：公益性行业(农业)科研专项“草原主要毒害草发生规律及防控技术研究”(201203062)~~
【分类号】：S812.6

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