【摘要】 在短花针茅荒漠草原群落 ,进行了放牧制度对主要植物种群有性繁殖能力影响的比较研究。结果表明 :不同放牧制度对群落植物种群的有性繁殖能力有影响 ;与自由放牧相比 ,轮牧有利于群落种群实生苗的存活和成丛 ,但不及禁牧的效果好 ;种群的有性繁殖与水分因子关系密切 ,降水充沛 ,有性繁殖能力增强更多还原

【Abstract】 The effects of grazing systems on the sexual multiplication of the main plants in Stipa breviflora desert steppe were studied.The results showed that the sexual multiplication of the plants was affected by different grazing systems; it was more beneficial to survival and growth of seedlings under rotational grazing than under continuous grazing, but not as effective as under forbidding grazing; the sexual multiplication of the plants was related to water, and it would be promoted when precipitation was plentiful.更多还原