Paddy fields located in water storage zones could take over the wetland plant community
Paddy fields located in water storage zones could take over the wetland plant community
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位于蓄水区的稻田可以接管湿地植物群落
DOI：
10.1038/s41598-020-71958-z
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发表时间：
2020
影响因子：
4.6
通讯作者：
Oka Takashi
中科院分区：
文献类型：
--
作者：
Osawa Takeshi;Nishida Takaaki;Oka Takashi
土地利用变化不仅会影响当地物种丰富度，还会影响群落结构。从本质上讲，植物群落组装的可能模式是非随机物种损失（巢性）和物种更替。在人为介导的土地利用中，植物群落聚集具有巢性和周转性。这是由于以往和/或原始生境质量造成的非随机物种损失的历史影响，以及导致物种更替的人类活动的直接影响。研究了稻田植物群落组合过程的复杂性，这是日本中部季风季节典型的农业用地。利用多时段植物监测记录，考察了物种筑巢/更替率与原始生境条件和人类改造程度的关系。结果表明，源自湿地生境的水田巢巢率较高，固结程度较高的水田周转率较高。因此，我们可以根据原始栖息地条件和人类活动来划分人类介导的土地利用群落组装过程。这一概念可以帮助土地管理者制定考虑到社区集会的保护和/或恢复计划。
Land use change could affect not only local species richness but also community assemblies. Essentially, the possible patterns of plant community assemblies are nonrandom species loss (nestedness) and species turnover. Plant community assemblies in human-mediated land use have a combination of both nestedness and turnover. This is because of historical effects that cause nonrandom species loss due to previous and/or original habitat quality and because of direct effects of human activities that cause species turnover. We investigated the complexity of the process of plant community assemblage in a paddy field, which is a typical agricultural land use in the monsoon season in central Japan. Using multi-temporal plant monitoring records, we tested the relationship between the ratio of species nestedness/turnover through multi-temporal and both the original habitat conditions and the extent of human modification. The findings revealed that paddy fields that originated from wetland habitat had a high nestedness ratio, whereas paddy fields that were largely consolidated had a high turnover ratio. Thus, we could divide the community assembly processes in human-mediated land use based on original habitat conditions and human activities. This concept could help land managers establish conservation and/or restoration plans that take into account community assembly.
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