放牧和刈割对内蒙古典型草原大型土壤动物的影响

发布时间：2018-06-06 20:56

本文选题：温带草原 + 放牧制度　；参考：《应用生态学报》2017年06期

【摘要】：采用连续3年全季节放牧、3种季节性轮牧、秋季刈割和不利用对照6种处理,研究了内蒙古典型草原大型土壤动物群落特征.调查在春、夏和秋3个季节进行,共捕获大型土壤动物597只,隶属于2门4纲11目,49个类群.结果表明:全季节放牧导致土壤动物的个体密度、生物量和多样性降低;而刈割的影响相对较轻,土壤动物的个体密度、生物量和多样性甚至有提高趋势.3种季节性轮牧处理中,夏季和秋季放牧2次处理对土壤动物群落个体密度、生物量和多样性等指标的负面影响较轻.刈割管理对退化典型草原大型土壤动物群落的恢复较为有利;夏季和秋季放牧2次处理对大型土壤动物群落的负面影响较轻,是较理想的草地可持续管理措施.
[Abstract]:The characteristics of soil macrofauna community in typical grassland of Inner Mongolia were studied by three seasonal rotation grazing in three consecutive seasons, cutting in autumn and six treatments without using control. The investigation was carried out in spring, summer and autumn. A total of 597 large soil animals were captured, belonging to 2 phyla, 4 classes, 11 orders and 49 groups. The results showed that the individual density, biomass and diversity of soil animals were decreased during the whole season grazing, while the effect of cutting was relatively light, and the individual density of soil animals, The biomass and diversity even increased in the seasonal rotation grazing treatments in summer and autumn, the negative effects on individual density, biomass and diversity of soil fauna community were slight. Mowing management was beneficial to the restoration of macrofauna communities in degraded typical steppe, and grazing twice in summer and autumn had less negative effects on macrofauna communities, so it was an ideal sustainable management measure for grassland.
【作者单位】：内蒙古师范大学生命科学与技术学院;内蒙古大学生态与环境学院;
【基金】：国家自然科学基金项目(41561055) 内蒙古自然科学基金项目(2015MS0307) 内蒙古大学引智项目内蒙古师范大学研究生创新基金项目(CXJJS16107)资助~~
【分类号】：S812.2

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