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首页> 外文期刊>African Journal of Biotechnology >Effect of mowing and grazing on ramet emergence of Leymus racemosus in the inner Mongolia steppe during the spring regreening period
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Effect of mowing and grazing on ramet emergence of Leymus racemosus in the inner Mongolia steppe during the spring regreening period

机译：割草和放牧对春季重组期内蒙古草原菌根出苗的影响

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摘要

The invasive?Leymus racemosus?species is mainly established by ramets (or clonal seedling). A field experiment was conducted in the spring of 2004 to investigate the effects on the surface soil temperature caused by mowing, grazing and grazing exclusion, and the influence of these factors on the ramets emergence characteristics. The primary effect of the treatments was significant changes in soil temperature in the grazing plots due to the mulch cover which was removed by sheep, keeping the daily mean soil temperature above 0°C during the period of the experiment. Grazing had positive impacts on the emergence of ramets, and their final cumulative emergence in the grazing plot significantly increased by 77 and 59% when compared to that in the grazing-exclusion and mowing plots. A linear function model was used to describe the correlation between the cumulative ramets emergence percentage and soil thermal time (qT). Variation in?qT?explained 98% of the observed variation in cumulative emergence; there were no significant differences in the soil thermal requirements for final ramets emergence completion for the other treatments. Both mowing and grazing exclusion had a significant effect on the invasive?L. racemosus?species ramets recruitment control.
机译：侵入性？卵藻毒素？物种主要由哈姆斯（或克隆幼苗）建立。在2004年春天进行了一个田间实验，以研究由割草，放牧和放牧排除引起的表面土壤温度的影响，以及这些因素对振动率的影响。治疗的主要效果是由于羊覆盖物的覆盖物覆盖物的覆盖图中土壤温度变化显着变化，其在实验期间将每日平均土壤温度保持在0°C以上。与放牧排除和割草图相比，放牧对振铃的出现产生了积极的影响，他们在放牧地块中的最终累积出现明显增加77％和59％。线性函数模型用于描述累积振动率百分比和土壤热时间（QT）之间的相关性。 QT的变异？解释了累积出现的观察变异的98％;对其他治疗的最终振动的土壤热量要求没有显着差异。割草和放牧排除都对侵入性的效果显着影响了。 racemosus？物种ramets招聘控制。

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