Burning management mediates the coexistence of plant species in a semi-natural grassland

Natureza & Conservacao Pub Date : 2015-07-01 DOI:10.1016/j.ncon.2015.11.004

Takeshi Osawa

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引用次数: 3

Abstract

Miscanthus sinensis-dominated semi-natural grassland is one component of a typical Satoyama landscape. M. sinensis most notably forms ring patches as a result of human management, which includes the removal of aboveground stems by burning. In this study, I hypothesized that M. sinensis aids the coexistence of several plant species under managed conditions because of its notable ring patches. To test this hypothesis I monitored the richness of plant species inside and outside M. sinensis ring patches for 5 years, which included one non-managed year, and compared richness between managed and non-managed years. Results showed that species richness was higher inside than outside patches in all cases, but that this effect was more prominent in managed years than in the non-managed year. Consequently, human management is promoting the coexistence of plant species in M. sinensis-dominated semi-natural grassland. Human management will likely play an important role in conserving plant species diversity in semi-natural grasslands by changing relationships among plants.

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焚烧管理对半天然草原植物物种共存的调节作用

以芒属植物为主的半天然草地是典型的萨托山景观的组成部分。最显著的是，由于人类的管理，包括通过焚烧去除地上茎，中华鳖形成了环状斑块。在这项研究中，我假设中华鳖有助于几种植物在管理条件下共存，因为它有显著的环状斑块。为了验证这一假设，我对中华鳖环斑内外的植物物种丰富度进行了5年的监测，其中包括一个非管理年份，并比较了管理年份和非管理年份之间的丰富度。结果表明，在所有情况下，斑块内部的物种丰富度都高于斑块外部，但这种影响在管理年份比非管理年份更为突出。因此，人类管理正在促进中华鳖占主导地位的半天然草原上植物物种的共存。人类管理可能通过改变植物之间的关系，在保护半天然草原植物物种多样性方面发挥重要作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Natureza & Conservacao 环境科学-生物多样性保护

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>12 weeks