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  1. Article: [Effects of Low-density Polyethylene Microplastics on the Growth and Physiology Characteristics of

    Zhou, Ying / Jiang, Wen-Ting / Liu, Xun-Yue / Zhu, Gao-di / Tang, Rong-Gui / Zhang, Hai-Bo / Cai, Yan-Jiang

    Huan jing ke xue= Huanjing kexue

    2023  Volume 44, Issue 7, Page(s) 4170–4178

    Abstract: Microplastic pollution in soil and its toxicological effects have attracted increasing attention from researchers, but the mechanisms of microplastics affecting crop growth and physiology remain unclear. A pot experiment was conducted to evaluate the ... ...

    Abstract Microplastic pollution in soil and its toxicological effects have attracted increasing attention from researchers, but the mechanisms of microplastics affecting crop growth and physiology remain unclear. A pot experiment was conducted to evaluate the impacts of various mass concentrations (0%, 0.2%, 5%, and 10%) of low-density polyethylene microplastics (LDPE MPs) on the germination rate, photosynthetic pigment content, biomass, antioxidant enzyme activity, soluble protein, and soluble sugar content of water spinach (
    MeSH term(s) Antioxidants/pharmacology ; Microplastics ; Plastics/toxicity ; Polyethylene ; Ipomoea ; Sugars
    Chemical Substances Antioxidants ; Microplastics ; Plastics ; Polyethylene (9002-88-4) ; Sugars
    Language Chinese
    Publishing date 2023-07-12
    Publishing country China
    Document type English Abstract ; Journal Article
    ISSN 0250-3301
    ISSN 0250-3301
    DOI 10.13227/j.hjkx.202207205
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Effects of plant residues on C:N:P of soil, microbial biomass, and extracellular enzyme in an alpine mea-dow on the Qinghai-Tibetan Plateau, China.

    Xiao, Xiang-Qian / Zhang, Hai-Kuo / Feng, Ya-Si / Wang, Ji-Peng / Liang, Chen-Fei / Chen, You-Chao / Zhu, Gao-di / Cai, Yan-Jiang

    Ying yong sheng tai xue bao = The journal of applied ecology

    2023  Volume 34, Issue 1, Page(s) 58–66

    Abstract: Plant residues can affect C:N:P of soil, microbial biomass, and extracellular enzyme, but the effects are still unclear. We conducted a field experiment in an alpine meadow on the eastern part of the Qinghai-Tibetan Plateau to explore the effects of ... ...

    Title translation 植物残体对青藏高原高寒草甸土壤、微生物和胞外酶C∶N∶P化学计量特征的影响.
    Abstract Plant residues can affect C:N:P of soil, microbial biomass, and extracellular enzyme, but the effects are still unclear. We conducted a field experiment in an alpine meadow on the eastern part of the Qinghai-Tibetan Plateau to explore the effects of removing aboveground plant or roots and adding plant residues on the C:N:P of soil, microbial biomass, and extracellular enzyme. The results showed that removing aboveground plant biomass significantly decreased soil C:N (the change was -23.7%, the same below) and C:P (-14.7%), microbial biomass C:P and N:P, while significantly increased microbial biomass C:N, and enzyme C:N:P compared with meadow without human disturbance. Removing all plant biomass (aboveground and roots) significantly reduced soil C:N (-11.6%), C:P (-24.0%), N:P (-23.3%) and microbial biomass C:N in comparison to removing aboveground plant, while significantly improved microbial biomass N:P and enzyme N:P. Adding plant residues after removing aboveground plant significantly increased microbial biomass C:N and C:P, enzyme C:N compared with removing aboveground plant, while significantly decreased enzyme N:P. Compared with removing all the plant, adding plant residues after removing whole plant significantly reduced soil C:N (-16.4%), microbial biomass C:P, N:P and enzyme N:P, while significantly increased enzyme C:N. Our results suggest that removal of plants could have a strong effect on C:N:P of soil, microbial biomass, and extracellular enzyme, and C:N:P of microbial biomass and that extracellular enzyme woule be more sensitive to plant residues. Roots could play a key role in stabilizing C:N:P of soil, microbial biomass, and extracellular enzyme under plant residues addition. Adding plant residues could be a suitable solution for restoring alpine meadows under the circumstance of intact roots, which was conducive to soil C storage, but might not be suitable for alpine meadows with serious root damage, which would increase soil CO
    MeSH term(s) Humans ; Biomass ; Tibet ; Grassland ; Soil/chemistry ; China ; Plants
    Chemical Substances Soil
    Language English
    Publishing date 2023-02-17
    Publishing country China
    Document type Journal Article
    ZDB-ID 2881809-X
    ISSN 1001-9332
    ISSN 1001-9332
    DOI 10.13287/j.1001-9332.202301.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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