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首页> 外文期刊>Environmental Management >Effects of Tourism and Topography on Vegetation Diversity in the Subalpine Meadows of the Dongling Mountains of Beijing, China
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Effects of Tourism and Topography on Vegetation Diversity in the Subalpine Meadows of the Dongling Mountains of Beijing, China

机译：旅游和地形对北京东灵山亚高山草甸植被多样性的影响

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摘要

Subalpine meadows in the Dongling Mountains (located at E115o26'-115°40', N40°00'-40°05') of Beijing, China are important for tourism and the provision of ecosystem services. However, because of poor management serious degradation has occurred on these subalpine meadows. The aim of this paper is to present a quantitative analysis of effects of tourism disturbance and topography on the status and diversity of montane meadow communities and to provide direction for improved management. Sixty quadrats of 2 x 2 m2 along 10 transects were set up to collect data on site characteristics and vegetation status. The relationships between community composition and structure, species diversity, and tourism disturbance and topographic variables were analyzed by multivariate methods (TWINSPAN and CCA). The results showed that eight meadow communities were identified by TWINSPAN. Most of them were seriously degraded. The first CCA axis identified an elevation and tourism disturbance intensity gradient, which illustrated that tourism disturbance and elevation were most important factors influencing meadow types, composition and structure. Some resistant species and response species to tourism disturbance were identified and can be used as indicator species of tourism disturbance. Species richness, heterogeneity and evenness were closely related to tourism disturbance and elevation. It is concluded that tourism disturbance must be controlled to enable grassland rehabilitation to occur in the meadows. Measures of effective management of the meadows were discussed.
机译：中国北京东陵山的亚高山草甸（位于E115o26'-115°40'，N40°00'-40°05'）对于旅游业和提供生态系统服务至关重要。但是，由于管理不善，这些亚高山草甸发生了严重的退化。本文的目的是对旅游干扰和地形对山地草甸群落的现状和多样性的影响进行定量分析，并为改进管理提供指导。沿着10个样带建立了60个面积为2 x 2 m2的正方形，以收集有关场地特征和植被状况的数据。通过多元方法（TWINSPAN和CCA）分析了群落组成与结构，物种多样性，旅游干扰和地形变量之间的关系。结果表明，TWINSPAN识别出八个草甸群落。其中大多数严重退化。 CCA的第一个轴确定了海拔和旅游干扰强度梯度，这说明旅游干扰和海拔是影响草甸类型，组成和结构的最重要因素。鉴定了一些对旅游干扰的抗性物种和响应物种，可用作旅游干扰的指示物种。物种丰富度，异质性和均匀度与旅游业的扰动和海拔高度密切相关。得出的结论是，必须控制旅游业的干扰，以使草地能够恢复草地。讨论了草地有效管理的措施。

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