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首页> 外文期刊>Land Degradation and Development >Colonization patterns of woody species on lands mined for coal in Spain: preliminary insights for forest expansion.
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Colonization patterns of woody species on lands mined for coal in Spain: preliminary insights for forest expansion.

机译：西班牙煤炭开采土地上木本物种的定殖模式：森林扩张的初步见解。

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In this study, we combined the analysis of a coenocline with Huisman-Olff-Fresco (HOF) modelling of species behaviour to describe colonization patterns of woody species on reclaimed coal wastes in northern Spain. We hypothesize that fine-scale variation in abiotic factors along the forest-grassland gradient that appears after mining restoration affects colonization pattern of woody species. To understand these factors, we analysed changes in floristic composition and abundance of the main woody colonizers according to the spatial distance from forest limit, as well as the spatial variability of some edaphic and microclimatic parameters. Our results showed how the primary coenocline extracted from DCA1 reflected a gradient in environmental conditions influencing the species composition of the woody plant communities, from the more shade, moist and dense forest on acid and rich soils to the open, dry and oligotrophic grassland. The colonization pattern of woody species is affected by fine-scale variations in abiotic factors, such as the increase in pH, P, light, and the decrease in K, N, C/N, organic matter and soil moisture, from the forest to the restored mine. Most species HOF modelled showed monotone responses with decreasing trends along the environmental gradient from forest to mine, being Quercus petraea the species clearly dominant in the forest. On the contrary, Cytisus scoparius and Genista florida colonize intensely in the mine area, reaching the maximum abundance around 15 and 10 m distance from the forest limit, respectively. We conclude that the composition of woody species in the forest is not a good predictor of the colonizing intensity, not even of the species composition in the mine area.Digital Object Identifier http://dx.doi.org/10.1002/ldr.1101
机译：在这项研究中，我们将对共线的分析与人类行为的Huisman-Olff-Fresco（HOF）建模相结合，描述了西班牙北部再生煤废物上木本物种的定殖模式。我们假设采矿恢复后出现的沿森林-草原梯度的非生物因子的精细变化会影响木本物种的定居模式。为了理解这些因素，我们根据距森林界限的空间距离以及一些深层和微气候参数的空间变异性，分析了主要木质移居者的植物种类组成和丰度变化。我们的研究结果表明，从DCA1中提取的主要辅酶在环境条件下如何影响木本植物群落的物种组成，从阴暗，潮湿和茂密的森林（在酸性和丰富的土壤中）到开阔，干燥和贫营养的草地，都反映出梯度变化。从森林到森林，非生物因子的细微尺度变化会影响木质物种的定居模式，例如pH，P，光的增加以及K，N，C / N，有机质和土壤水分的减少。恢复的地雷。 HOF建模的大多数物种都表现出单调响应，并且随着森林到矿山的环境梯度的增加，趋势逐渐减小，而栎属栎显然是森林中的优势物种。相反，Cytisus scoparius和Genista florida在矿区密集繁殖，分别在距森林界限15和10 m处达到最大丰度。我们得出的结论是，森林中木本物种的组成并不是殖民强度的良好指标，甚至不是矿区物种组成的良好指标。数字对象标识符http://dx.doi.org/10.1002/ldr.1101

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