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Phytocenological characteristics of two pasture swards with different management histories

机译：两种牧场的植物学特征与不同的管理历史造水

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The phytocenological characteristics of pasture sward were monitored at two mountain sites. One site (Farm-1) was covered by Lolio-Cynosuretum vegetation and it had been grazed in rotation by dairy cattle for more than forty years. The other site (Farm-2) was a newly established pasture grazed by sheep. The species richness, abundance, and Shannon index of diversity were examined at each site three times a year from 2006 to 2008. At the beginning of the experiment the species richness, total abundance (plant cover), and the diversity were higher at the Farm-1 site (34; 2.00 and 89% on average, respectively) than at the Farm-2 site (15; 1.15 and 64%) on average, respectively). During the three-year study significantly higher values of the three characteristics were found at the Farm-2 site (37 species; 1.86 Shannon index; 87% total abundance). However, the undesirable species Bromus hordeaceus, Rumex obtusifolius, and Urtica dioica made a substantial contribution to this trend. They were present ata high level of abundance (5-25%) in the sward in 2008.
机译：在两座山区监测牧场植物的植物学特征。一个网站（农场-1）被Lolio-cynosuretum植被覆盖，它被奶牛旋转旋转超过四十多年。其他网站（Farm-2）是一种被绵羊放牧的新建立的牧场。从2006年到2008年的每场网站检查了物种丰富，丰富，丰富和Shannon多样性指数。在实验开始时，物种丰富性，总丰富（植物覆盖），农场的多样性较高-1位点（34; 2.00和89％平均），平均水平在农场2位点（15; 1.15和64％）。在为期三年的研究中，在农场-2位点（37种; 1.86 Shannon指数;总丰度87％）中发现了三种特征的显着较高。然而，不受欢迎的物种Bromus Hordeaceus，Rumex obtusifolius和荨麻疹Dioica对这一趋势产生了重大贡献。他们于2008年在斯普拉德省ata高度丰富（5-25％）。

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