天然羊草草地是优良的放牧场和割草场。本文报告了东北天然单优种羊草草甸,在放牧、割草、休闲等不同利用方式下,羊草的分蘖成穗、生殖器官的性状、产量和质量等种子生产性能。放牧破坏一些个体的成穗过程,单位面积上成穗少,籽粒的净生产量低,但籽粒饱满,品质优良。割草能引起土壤贫瘠化和密度增大,割草的时间越长,对种子生产的影响越严重。休闲能恢复羊草种群种子生产的潜在性能。 Natural Leymus grass is excellent grazing and mowing. In this paper, the natural single-superior Leymus chinensis meadow in northeastern China was reported. Under different grazing conditions such as grazing, mowing and leisure, the tiller tillers, reproductive organ traits, yield and quality of Leymus chinensis were studied. Grazing destroys the process of the earning of some individuals, with fewer spikes per unit area, lower net grain yield, but full grain and good quality. Mowing can lead to poor soil fertility and increased density, the longer mowing, the more serious the impact on seed production. Leisure can restore the potential performance of Leymus chinensis population seed production.