Surface structure on abandoned upland blanket peatland tracks.
Surface structure on abandoned upland blanket peatland tracks.
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DOI：
10.1016/j.jenvman.2022.116561
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发表时间：
2022-11
影响因子：
8.7
通讯作者：
Jessica Williams-Mounsey;Alistair Crowle;Richard Grayson;R. Lindsay;J. Holden
中科院分区：
文献类型：
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作者：
Jessica Williams-Mounsey;Alistair Crowle;Richard Grayson;R. Lindsay;J. Holden
泥炭地上的赛道使用通常会被授予临时许可。然而，即使泥炭地轨道设计试图通过使用网状系统将对环境的影响降至最低，这种线性干扰可能会产生持续的影响。我们评估了英格兰北部高地的五条废弃轨道(四条有网状表面，一条未铺设表面)的表层泥炭地结构，这些轨道过去的使用频率不同。与周围的控制区相比，所有轨道上的表面纳米地形都简化了，车辙区域的微侵蚀图案增加，一些处理上的入侵物种。以前使用的频率并不是控制纳米形貌损失的重要因素。边缘效应和坡位对不同处理有影响，但不同处理间的影响并不一致。当轨道在轨道建造后的短时间内开始使用时，发现纳米地形恢复被抑制。网格轨迹似乎造成了空间限制，导致植物发育不良，形成沼泽功能所必需的特征结构的能力降低。
Temporary permissions are often granted for track use on peatlands. However, even when peatland track designs attempt to minimise environmental impacts via use of mesh systems, such linear disturbances may have persistent impacts. We evaluated the surface peatland structure of five abandoned tracks (four with a mesh surface, one unsurfaced) with varying past usage frequencies, at an upland site in northern England. Simplification of the surface nanotopography was found on all tracks compared to surrounding control areas, with increased micro-erosion patterns in rutted areas, and invasive species on some treatments. The frequency of previous usage was not found to be a significant factor controlling nano-topographic loss. Edge effects and hillslope position were influential in places, but these effects were not consistent across treatments. Nano-topographic recovery was found to be inhibited when track usage commenced within a short time frame after track construction. Mesh tracks appear to create a spatial constraint leading to poor development of plants and a reduced ability to form characteristic structures which are integral to mire function.