草原蘑菇圈对牧草长势影响的初步分析

Preliminary study of the effects of fairy ring of grassland on the growth of herbage

在白蘑、黄蘑圈上、圈内及圈外分别作测产样方 ,分析它们之间的差异。结果表明 :白蘑、黄蘑圈均可极显著地提高群落地上生物量。其中对羊草的影响较显著 ,圈上羊草的生物量、株高、密度及单株重均明显高于圈内、圈外 ;对黄囊苔草和其它植物的影响不明显。白蘑圈对羊草的影响较黄蘑圈大。

By measuring productivity with quadrat sampling method on the circles and inside,outside the circles of Tricholoma mongolicum and Tricholoma gambasum circles,we analysed the differences of the community among them.The results were showed: T.mongolicum and T.gambasum circles could promote the dry above ground biomass of the community obviously.Especially,the effects of T.mongolicum and T.gambasum circles on Legmus chinensis are obvious,the dry above ground biomass,height,density and weight of individual plant on the circles are higher than those of inside,outside the circles,the effects on Carax korshinky and other plants are not obvious.The effects of T.mongolicum circles on Legmus chinensis are bigger than those of T.gambasum circles.