期刊
GLOBAL ECOLOGY AND CONSERVATION
卷 21, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.gecco.2019.e00779
关键词
Plant community; Microbial community; Anthropogenic environmental changes; Grassland; Abundance; Species/OTU/Gene number
资金
- National Major Science and Technology Program for Water Pollution Control and Treatment of China [2017ZX07101003]
- National Key Research and Development Program of China [2016YFC0500702]
- National Science Foundation of China [41701308]
- Central Public-interest Scientific Institution Basal Research Fund of China [BSRF201714]
Understanding species responsiveness to anthropogenic environmental changes benefits the guide to manage biodiversity. Microbes are traditionally thought to be more sensitive to environmental changes than plants. However, this hypothesis is supported by little empirical evidence. We compared plant and microbial responses to 13 types of simulated environmental changes (mowing (M), adding nitrogen (N), adding phosphorus (P), watering (W), warming (T) and combinations of these) in a steppe ecosystem. Contrary to our hypothesis, the microbial responses were generally smaller than the plant responses to different types of environmental changes, both at the community-abundance level and species/operational taxonomic unit (OTU)/gene level. This might be ascribed to the soil buffering capacity to environmental changes, and the rapid evolutionary adaptation for microbial communities. Furthermore, the responses at the community-abundance level were larger than at the species/OTU/gene level to 13 types of environmental changes, both in plant and microbial communities. Given that the community abundance representing the total number of all individuals of the organism within the community, the responses to environmental changes at the community-abundance level is likely to be larger than at the species/OTU/gene level. Plant biomass was more responsive to N addition, particularly in such N- limiting grassland ecosystem. Our findings highlight that plant communities are more responsive to environmental changes than microbial communities, contrary to the traditional viewpoint. Therefore, plant communities could be used as ecological indicators of anthropogenic environmental changes in grasslands. (C) 2019 Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences. Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据