Assessment of sea buckthorn (Hippophaë rhamnoides L.) long distance dispersal on the internal waste heap of the Bełchatów lignite mine

Q4 Agricultural and Biological Sciences
L. Bolibok, M. Kubiak, S. Michalski
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Abstract

Abstract Long distance dispersal is a key process occurring in plant communities and is particularly important for pioneer species like sea-buckthorn (Hippophaë rhamnoides L.) which survival strongly depends on colonizing newly created post-disturbance habitats. Sea-buckthorn, a cluster-forming shrub, is commonly used in Poland in the reclamation of soil-less areas devastated the by mining industry and for these areas a generative expansion of planted populations is usually observed. The main objective of this study was to assess the long-distance dispersal of this species in areas previously disturbed by industrial activity. Our observations were made on a 223.75 ha large section of the internal waste heap of the Bełchatów lignite mine, Central Poland. The area was colonized by sea-buckthorn specimens originating from a population planted on the nearby external waste heap. During the search for newly established sea-buckthorn clusters, their position and size were recorded and the preferences for specific site conditions were assessed using the Ivlev’s electivity index. New specimen were observed at distances between 600 m and 3600 m from their potential seed source. The mean cluster density was 1.37 ha−1. The observed pattern of long distance dispersal is linked with to behavior of frugivorous birds. The largest cluster densities were observed along ditches (9.83 ha−1) and on open areas with less developed plant cover, while the lowest cluster density occurred in afforested areas (0.51 ha−1). Poor sandy substrate reduced the probability of plant establishment compared to richer loamy sands. There appeared to be no influence of slope aspect on the probability of sea-buckthorn establishment.
沙棘(Hippophaë rhamnoides L.)在Bełchatów褐煤矿山内部垃圾堆上长距离扩散的评价
长距离扩散是植物群落的一个关键过程,对于沙棘(Hippophaë rhamnoides L.)等先锋物种来说尤为重要,它们的生存强烈依赖于在干扰后新创建的栖息地中定居。沙棘是一种丛状灌木,在波兰通常用于开垦被采矿业破坏的无土地区,在这些地区,通常可以观察到种植种群的繁殖性扩大。本研究的主要目的是评估该物种在以前受工业活动干扰的地区的长距离扩散。我们的观察是在波兰中部Bełchatów褐煤矿内部废渣堆的223.75公顷的大块上进行的。该地区的沙棘标本来自种植在附近外部废物堆上的种群。在寻找新建立的沙棘群的过程中,记录了它们的位置和大小,并使用Ivlev的选择性指数评估了对特定场地条件的偏好。在距离潜在种子源600米至3600米的地方发现了新的标本。平均群集密度为1.37 ha−1。观察到的长距离扩散模式与果食性鸟类的行为有关。在沟渠和植被不发达的开阔地区,集群密度最高(9.83 ha−1),而在绿化地区集群密度最低(0.51 ha−1)。与肥沃的壤土相比,贫瘠的沙质基质降低了植物生长的可能性。坡向对沙棘生长的可能性似乎没有影响。
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来源期刊
USDA Forest Service - Research Papers PNW-RP
USDA Forest Service - Research Papers PNW-RP Agricultural and Biological Sciences-Forestry
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