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首页> 外文期刊>Environmental Science & Technology >Artificially Accelerating the Reversal of Desertification: Cyanobacterial Inoculation Facilitates the Succession of Vegetation Communities
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Artificially Accelerating the Reversal of Desertification: Cyanobacterial Inoculation Facilitates the Succession of Vegetation Communities

机译：人为地加速荒漠化的逆转：蓝藻菌接种促进植被群落的演替

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摘要

Desertification has been recognized as a global environmental problem, and one region experiencing ongoing desertification is the eastern edge of Qubqi Desert (Inner Mongolia). To investigate the facilitating effects of cyanobacterial inoculation technology on the desertification control along this steppe-desert transition region, artificial cyanobacterial crusts were constructed with two filamentous cyanobacteria 3 and 8 years ago combined with Salix planting. The results showed that no crusts formed after 3 years of fixation only with Salix planting, whereas after cyanobacterial inoculation, the crusts formed quickly and gradually succeed to moss crusts. During that course, topsoil environments were gradually improved, providing the necessary material basis for the regeneration of vascular plants. In this investigation, total 27 species of vascular plants had regenerated in the experimental region, mainly belonging to Asteraceae, Poaceae, Chenopodiaceae and Leguminosae. Using space time substitution, the dominant species along with the application of cyanobacterial inoculation technology succeeded from Agriopkyllum squarrosum ultimately to Leymus chinensis. In addition, it was found that the shady side of the dunes is more conducive to crust development and succession of vegetation communities. Conclusively, our results indicate artificial cyanobacterial inoculation technology is an effective and desirable path for desertification control.
机译：荒漠化已被认为是一个全球性的环境问题，一个正在持续进行沙漠化的地区是库布齐沙漠的东部边缘（内蒙古）。为了研究蓝藻接种技术对沿这一荒漠化过渡区的荒漠化防治的促进作用，分别在3和8年前用两根丝状蓝细菌与柳柳种植共同构建了人工蓝细菌外壳。结果表明，仅种植柳柳树，固定3年后没有结壳，而在接种蓝藻后，结壳迅速形成，并逐渐变为苔藓结壳。在此过程中，表土环境逐渐得到改善，为维管植物的再生提供了必要的物质基础。在这项调查中，实验区共有27种维管束植物再生，主要属于菊科，禾本科，藜科和豆科。利用时空置换，优势物种以及蓝细菌接种技术的应用最终从方格集草（Ariopkyllum squarrosum）成功地转化为羊草（Leymus chinensis）。此外，还发现沙丘的阴暗面更有利于结皮的发育和植被群落的演替。总之，我们的结果表明人工蓝细菌接种技术是控制荒漠化的有效途径。

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  • 来源
    《Environmental Science & Technology》 |2014年第1期|307-315|共9页
  • 作者

    Shubin Lan; Qingyi Zhang; Li Wu; Yongding Liu; Delu Zhang; Chunxiang Hu;

  • 作者单位

    Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, People's Republic of China;

    Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, People's Republic of China,Graduate University of Chinese Academy of Sciences, Beijing 100039, People's Republic of China;

    Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, People's Republic of China,School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, People's Republic of China;

    Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, People's Republic of China;

    Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, People's Republic of China,School of Sciences, Wuhan University of Technology, Wuhan, 430070, People's Republic of China;

    Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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