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首页> 外文期刊>The Science of the Total Environment >Biochar amendment improves alpine meadows growth and soil health in Tibetan plateau over a three year period
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Biochar amendment improves alpine meadows growth and soil health in Tibetan plateau over a three year period

机译：生物炭修正案在三年内改善了青藏高原的高山草甸生长和土壤健康

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摘要

Previous biochar research has primarily focused on agricultural annual cropping systems with very little attention given to highly fragile, complex and diverse natural alpine grassland ecosystems. The present study investigated the effect of biochar on the growth of alpine meadows and soil health. This study was conducted in the Qinghai Tibetan Plateau over a three year period to investigate the effect of three rice husk biochar application rates alone and combination with high and low NPK fertilizer dosages on alpine meadow productivity, soil microbial diversity as well as pH, carbon and nitrogen content at 0-10 cm and 10-20 cm depth. At the end of the 3rd year soil samples were analysed and assessed by combined analysis of variance. The results showed that biochar application in combination with nitrogen (N), phosphorus (P) and potassium (K) fertilizer had a significant increase in fresh and dry biomass during the second and third year of the study as compared to control and alone biochar application (p ≤ 0.05). Biochar alone and in combination with NPK fertilizer resulted in a significant increase in the soil pH and carbon contents of the soil. XPS results, the SEM imaging and EDS analysis of aged biochar demonstrated that the biochar has undergone complex changes over the 3 years as compared to fresh biochar. This research suggests that biochar has positive effect on alpine meadow growth and soil health and may be an effective tool for alpine meadow restoration.
机译：以前的生物炭研究主要集中在农业年度种植系统上，很少关注高度脆弱，复杂和多样的天然高山草原生态系统。本研究调查了生物炭对高寒草甸生长和土壤健康的影响。这项研究在青海高原进行了为期三年的研究，研究了三种稻壳生物炭单独施用量以及高氮磷钾肥和低氮磷钾肥组合对高寒草甸生产力，土壤微生物多样性以及pH，碳和碳的影响。氮含量为0-10厘米和10-20厘米深度。在第三年末，通过方差组合分析对土壤样品进行分析和评估。结果表明，与对照和单独施用生物炭相比，在研究的第二年和第三年，生物炭与氮（N），磷（P）和钾（K）肥料的联合施用可显着增加新鲜和干燥生物量。 （p≤0.05）。单独使用生物炭以及与氮磷钾肥料组合使用，都会大大增加土壤的pH值和土壤碳含量。 XPS结果，老化的生物炭的SEM图像和EDS分析表明，与新鲜生物炭相比，生物炭在3年中经历了复杂的变化。这项研究表明，生物炭对高寒草甸的生长和土壤健康具有积极作用，并且可能是恢复高寒草甸的有效工具。

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  • 来源
    《The Science of the Total Environment》 |2020年第may15期|135296.1-135296.11|共11页
  • 作者

    Muhammad Khalid Rafiq; Yanfu Bai; Rukhsanda Aziz; Muhammad Tariq Rafiq; Ondrej Masek; Robert Thomas Bachmann; Stephen Joseph; Maqbool Shahbaz; Abdul Qayyum; Zhanhuan Shang; Mahmoud Danaee; Ruijun Long;

  • 作者单位

    UK Biochar Research Centre School of CeoSciences University of Edinburgh Crew Building King's Buildings Edinburgh EH9 3FF United Kingdom State Key Laboratory of Grassland Agro-ecosystems International Centre for Tibetan Plateau Ecosystem Management School of Life Sciences Lanzhou University Lanzhou 730000 China Rangeland Research Institute National Agricultural Research Center Islamabad 44000 Pakistan;

    State Key Laboratory of Grassland Agro-ecosystems International Centre for Tibetan Plateau Ecosystem Management School of Life Sciences Lanzhou University Lanzhou 730000 China;

    Department of Environmental Science International Islamic University Islamabad 44000 Pakistan;

    Center for Interdisciplinary Research in Basic Sciences International Islamic University 44000 Islamabad Pakistan;

    UK Biochar Research Centre School of CeoSciences University of Edinburgh Crew Building King's Buildings Edinburgh EH9 3FF United Kingdom;

    Universiti Kuala Lumpur Branch Campus Malaysian Institute of Chemical & Bio-Engineering Technology (UniKL M1CET) Lot 1988 Kawasan Perindustrian Bandar Vendor Taboh Naning 78000 Alor Gajah. Melaka Malaysia;

    School of Materials Science and Engineering University of NSW. Kensington NSW Australia 2052;

    Rangeland Research Institute National Agricultural Research Center Islamabad 44000 Pakistan;

    Department of Agronomy University of Haripur 22620 Pakistan;

    Department of Social and Preventive Medicine Faculty of Medicine University of Malaya 50603 Kuala Lumpur MALAYSIA;

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  • 正文语种 eng
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  • 关键词

    Biochar; Alpine meadows; Soil health;

    机译：生物炭高寒草甸;土壤健康;

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