草地学报

›› 1998, Vol. 6 ›› Issue (1): 68-71,52.DOI: 10.11733/j.issn.1007-0435.1998.01.010

• 研究论文 • 上一篇    下一篇

退化混播人工草地白三叶繁殖特性的变化

苏德毕力格, 周禾, 王培, 孙海群   

  1. 中国农业大学草地研究所, 北京 100094
  • 出版日期:1998-02-15 发布日期:1998-02-15
  • 基金资助:
    “九五”农业部畜牧业重点科研计划专题研究项目

Variation in Reproductive Characters of White Clover on a Degradation Series of Artificial Grassland

Su debilige, Zhou He, Wang Pei, Sun Haiqun   

  1. Institute of Grassland Science, China Agricultural University, Beijing 100094
  • Online:1998-02-15 Published:1998-02-15

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摘要： 本文研究退化混播人工草地白三叶有性及无性繁殖特性的变化规律。结果表明,随着草地由轻到重的退化,白三叶无性繁殖能力则显著提高,另外单位面积种子量在重度退化地段有明显增加。但是由于土壤理化性状的变劣,白三叶种群的频度、密度和地上生物量均随着草地退化的加重而显著减少。

关键词: 人工草地, 退化系列, 白三叶, 繁殖特性

Abstract: Variation in reproductive characters of white clover along a degradation series of artificialgrassland was studied in Nanshan state farm, Hunan Province.Results showed:vegetative reproduction ofwhite clover was strengthened with increasing grassland degradation; meanwhile, seed rain of white cloverwas increased with grassland degradation process and was highest on the heavily degraded guassland.However, density and above-ground biomass of white clover population were decreased significantly Whilegrassland dsgradaion became more severe,just because of deterioration of soil properties.

Key words: Artificial grassland, Degradation series, White clover, Reproductive characters