Effect of Grassland Degradation on Arbuscular Mycorrhizal Symbiosis of Leymus chinensis (Trin.) Tzvel. in Different Steppe Types
Effect of Grassland Degradation on Arbuscular Mycorrhizal Symbiosis of Leymus chinensis (Trin.) Tzvel. in Different Steppe Types
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DOI：
10.4028/www.scientific.net/amr.772.855
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发表时间：
2013-09
期刊：
影响因子：
--
通讯作者：
E. Wu;L. Bai;L. Cao
中科院分区：
文献类型：
--
作者：
E. Wu;L. Bai;L. Cao
本研究比较了西乌珠穆沁旗草甸草原与典型草原羊草丛枝菌根共生关系。菌根侵染率和根际孢子数。两种草地退化程度由轻到重，羊草的含量均呈下降趋势。菌根侵染率和根际孢子数均高于对照。草甸草原在中度-重度退化阶段羊草含量显著降低，典型草原在轻度-中度退化阶段羊草含量显著降低。这些结果表明，L.典型草原的中华绒螯蟹种群数量低于草甸草原。
This study compared the arbuscular mycorrhizal symbiosis of Leymus chinensis between meadow steppe and typical steppe in the West Ujimqin banner. Mycorrhizal colonization rate and number of rhizosphere spore of L. chinensis decreased from light to heavy grassland degradation in the both of steppes. The mycorrhizal colonization rate and rhizosphere spore number of L. chinensis decreased significantly at moderate-heavy degradation stages in meadow steppe, and the typical steppe occurred in light-moderate degradation stages. These results indicated that the mycorrhizal symbiotic patience of L. chinensis in typical steppe is lower than that of meadow steppe.