Effect of Fire on the Competition Between Blue Grass and Certain Prairie Plants
Effect of Fire on the Competition Between Blue Grass and Certain Prairie Plants
复制标题
火灾对蓝草与某些草原植物竞争的影响
DOI：
10.2307/2421594
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发表时间：
1948
期刊：
影响因子：
--
通讯作者：
Max L. Partch
中科院分区：
文献类型：
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作者：
J. T. Curtis;Max L. Partch
位于麦迪逊的威斯康星州大学植物园位于草原和阔叶林群落之间的交错带地区，距离北方森林群落的南部边界只有很短的距离。虽然气候条件不允许这些主要形成物中的任何一种得到最佳发展，但它确实允许所有三个植物类群的元素存在。目前的条件似乎是最有利的阔叶林，因为在未受干扰的地区的演替一般进行到该顶极。在具有适宜的小气候或土壤条件的地区，其他地层的联合碎片持续存在，例如在薄土石灰岩峭壁上的高草草原。表面上看，在火灾或其他机构阻止木本物种入侵的其他地方也可能发生干旱。据信，通过明智地使用火或其他生物控制，可以在植物园的1400英亩范围内建立和维持每一个地层的几个协会的相当完整的例子;人们希望在建立过程中可以获得关于植物边界动态的许多有价值的信息。本文简要地报道了其中一个阶段的工作，即火对某些人工种植的草原物种的生长和蔓延的影响，这些物种与一个密集的老草地蓝草草皮竞争。
The University of Wisconsin Arboretum in Madison lies in the ecotone region between prairie and hardwood forest formations and only a short distance from the southern border of the boreal forest formation. \hile the clinmate does not allow for optimum development of any of these main formations, it does permit the existence of elements of all three plant groups. The prevailing conditions appear to be most favorable for the hardwood forest, since the succession on undisturbed areas generally proceeds towards that climax. In areas with suitable microclimatic or edaphic conditions, association fragments of the other formations persist, such as tall-grass prairie on thin-soil limestone bluffs. Seemingly, praliries may also occur in other places where fire or other agencies prevent the invasion of woody species. It is believed that by the judicious use of fire or other biotic controls, fairly complete examples of the several associations of each of the formations can be estabhshed and maintained within the 1400 acre limits of the Arboretum; it is hoped that much information of value concerning the dynamics of iormation boundaries can be obtained in the course of such establishment. The present paper reports briefly on one phase of the work, namely the effect of fire on the growth and spread of certain planted prairie species in competition witth a dense sod of old field blue grass.