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首页> 外文期刊>Applied Soil Ecology >The effects of gap size and litter species on colonization of soil fauna during litter decomposition in Pinus massoniana plantations
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The effects of gap size and litter species on colonization of soil fauna during litter decomposition in Pinus massoniana plantations

机译：间隙大小和垃圾种类对土壤尸体殖民定殖的影响，在松鼠Massoniana种植园

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摘要

Litter decomposition is a major component of the nutrient cycle in forest ecosystems. It is generally accepted that higher initial quality and litter mixture contribute to increased mass loss, and the effects of soil fauna on litter decomposition is context-dependent. Meanwhile, the formation of gaps alters the hydrological and thermal conditions of the forest through the redistribution of light and precipitation, ultimately influencing the distribution and activity of the soil biota. Previous studies have focused on the effects of either litter species or forest gaps on soil microbes. However, the combined effects of litter species and gap size on the composition and structure of the soil fauna during litter decomposition have not been thoroughly examined. By analyzing litter collected over the course of one year from a Pinus massoniana plantation, shifts in the soil fauna, including indicator groups and guilds based on feeding habits, were correlated with changes of litter substrate, gap size, and incubation time. It was also observed that mesofauna (including microarthropods, nematodes, etc.) were more susceptible to these examined factors than macrofauna. Furthermore, litter type has higher influence on the abundance and richness of soil fauna than litter diversity. In general, small to intermediate sized gaps improved soil fauna diversity, richness, and functional diversity of indicator taxa. The relative abundance of guilds varied with gap size, litter species, and incubation time. The relative abundance of carnivores increased with gap size, whereas fungivores and detritivores increased with incubation time. The observed relative abundance of herbivores was higher in P. massoniana leaf litter than in Cinnamomum camphora and mixed-species leaf litters. Overall, the data presented here indicated that the creation of small to intermediate sized gaps will increase the diversity of soil fauna and accelerate litter mass loss in P. massoniana plantations. The subsequent effects on the return of bioavailable nutrients and soil carbon storage require additional long-term studies.
机译：凋落物分解是森林生态系统中营养循环的主要组成部分。普遍认为，较高的初始质量和垃圾混合物有助于增加质量损失，并且土壤动物群对垃圾分解的影响是依赖性的。同时，间隙的形成通过光和沉淀的再分配而改变了森林的水文和热条件，最终影响土壤生物群的分布和活性。以前的研究专注于垃圾种类或森林间隙对土壤微生物的影响。然而，垃圾物种和间隙大小对垃圾分解过程中土壤动物组成和结构的综合影响尚未得到彻底检查。通过分析在从品卡Massoniana种植园的一年内收集的垃圾，土壤动物区间的变化，包括基于饲养习惯的指标群和公会，与凋落物基质，间隙尺寸和孵育时间的变化相关。还观察到中梅花（包括Microarkropods，Nematodes等）比Macrofauna更容易受到这些检查的因素的影响。此外，垃圾类型对土壤部落的丰富和丰富性影响比垃圾分集更高。一般来说，小于中等规模的差距改善了土壤动物的多样性，丰富度和功能多样性的指标征集。公会的相对丰富与间隙大小，凋落物种和孵育时间变化。食肉动物的相对丰度随差距大小而增加，而减弱和脱裂随着孵化时间而增加。观察到的异常食草动物在P. Massoniana叶凋落物中的相对丰度高于Cinnamomum Camphora和混合物种叶片窝。总体而言，这里提出的数据表明，小于中等规模差距的创造将增加土壤动物的多样性，并加速P. Massoniana种植园的垃圾量损失。随后对生物可利用度营养和土壤碳储存返回的影响需要额外的长期研究。

著录项

  • 来源
    《Applied Soil Ecology》 |2020年第1期|共10页
  • 作者

    Huang Yumei; Yang Xu; Zhang Danju; Zhang Jian;

  • 作者单位

    Sichuan Agr Univ Coll Landscape Architecture 211 Huimin Rd Chengdu 611130 Sichuan Peoples R China;

    Johns Hopkins Univ Dept Earth &

    Planetary Sci 3400 North Charles St Baltimore MD 21210 USA;

    Sichuan Agr Univ Inst Ecol Forestry Sichuan Prov Key Lab Ecol Forestry Engn Upper Rea 211 Huimin Rd Chengdu 611130 Sichuan Peoples R China;

    Sichuan Agr Univ Inst Ecol Forestry Sichuan Prov Key Lab Ecol Forestry Engn Upper Rea 211 Huimin Rd Chengdu 611130 Sichuan Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 土壤生态学;
  • 关键词

    Forest gap; Litter mixture; Mass loss; Macrofauna; Mesofauna; Feeding habit;

    机译：森林差距;垃圾混合物;大量损失;宏过;Mesofauna;喂养习惯;

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