Microenvironmental variability differently predicts microorganism- and fauna-driven litter decomposition

IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY
Pan Yin, 尹攀, Kaiyan Zhai, Xuechao Zhao, Renshan Li, María José Fernández-Alonso, Jiao Wang, Huixia Yang, Xiongqing Zhang, Björn Berg, Silong Wang, Weidong Zhang, François-Xavier Joly
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引用次数: 0

Abstract

Abstract Image

微环境变异性不同地预测微生物和动物驱动的凋落物分解
植物凋落物分解是生态系统碳和养分循环的关键过程。越来越多的证据表明,凋落物分解的实质性变化发生在一个细微的尺度上,但微生物和动物驱动的分解对这种变化的贡献,以及生物和非生物驱动因素对这种变化的相对控制,实际上仍未被探索。为了解决这一知识缺口,我们在一个9公顷的亚热带针叶林中使用了一个由113个均匀分布的样地组成的空间明确网络,以评估在宏观气候、优势植被和凋落物质量保持不变的尺度下微生物和动物驱动的分解的变化和控制。尽管保持主要分解驱动因素不变,但分解的变化大于区域研究中通常报道的变化,相当于以前在全球尺度上报道的变化的约三分之一。此外,虽然包括地形条件和土壤肥力在内的非生物因素可以解释31%的微生物驱动分解变化,但它们不能解释动物驱动分解的任何变化,这表明微生物和动物驱动分解活动对微环境因素的敏感性存在差异。合成。我们的研究强调需要使用空间明确的方法来考虑凋落物分解率的局部尺度变化,以便更好地确定驱动微生物和动物有机质周转途径的因素。
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来源期刊
Journal of Ecology
Journal of Ecology 环境科学-生态学
CiteScore
10.90
自引率
5.50%
发文量
207
审稿时长
3.0 months
期刊介绍: Journal of Ecology publishes original research papers on all aspects of the ecology of plants (including algae), in both aquatic and terrestrial ecosystems. We do not publish papers concerned solely with cultivated plants and agricultural ecosystems. Studies of plant communities, populations or individual species are accepted, as well as studies of the interactions between plants and animals, fungi or bacteria, providing they focus on the ecology of the plants. We aim to bring important work using any ecological approach (including molecular techniques) to a wide international audience and therefore only publish papers with strong and ecological messages that advance our understanding of ecological principles.
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