生物土壤结皮发育及其影响因素研究进展

发布时间：2018-03-18 23:04

本文选题：生物土壤结皮　切入点：干旱半干旱地区　出处：《草业科学》2017年09期 　论文类型：期刊论文

【摘要】：生物土壤结皮在干旱、半干旱地区分布较为广泛,约占陆地总面积的40%,生物土壤结皮是支撑该区生态系统主要的生物表面特征,在改善生态环境和草地土壤养分调控方面起着重要作用。自1960年以来,国内外许多学者对其生态功能进行了大量研究,但对生物土壤结皮演替机制及其微生境土壤养分变异特征的研究尚不明确。为此,本文就国内外该领域近50年来的研究进展和成果进行了详细阐述,以期了解生物土壤结皮发育对土壤肥力的作用过程;同时,也为研究干旱半干旱区退化草地生态系统的恢复与重建提供一定的科学思路。
[Abstract]:Biological soil crusts in arid and semi arid area is widely distributed, accounting for about 40% of the total land area, biological soil crusts are supporting biological surface characteristics of ecosystem mainly in this area, plays an important role in improving the ecological environment and soil nutrient regulation. Since 1960, many domestic and foreign scholars have made a lot of research on the ecological function, but the research on crust succession mechanism and microhabitat variation of soil nutrient characteristics of biological soil is not clear. Therefore, the domestic and foreign research progress and achievements in the past 50 years in this field in detail, in order to understand the development process of biological soil crusts on soil fertility; at the same time, also provide some scientific ideas of restoration and reconstruction of degraded grassland ecosystem of arid and semi arid areas.

【作者单位】：草地农业生态系统国家重点实验室兰州大学草地农业科技学院;青海省海南藏族自治州兴海县气象局;
【基金】：国家重点研发计划(2016YFC0500506) 国家科技基础性工作专项(2012FY111900) 国家自然科学基金(31572458;31201837) 兰州大学中央高校基本科研业务费专项资金资助(lzujbky-2016-13);兰州大学“本科教学工程”国家级大学生创新创业训练计划(201510730100) 长江学者和创新团队发展计划(IRT13019)
【分类号】：S812.2

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