草地学报

草地学报 ›› 2019, Vol. 27 ›› Issue (5): 1355-1363.DOI: 10.11733/j.issn.1007-0435.2019.05.030

• 研究论文 • 上一篇    下一篇

生物有机肥对川西北退化草地群落结构和生产性能的影响

宋君祥1, 雷雄1, 叶明清2, 张惊乐1, 杨颖1, 蔡东阳1, 扎德3   

  1. 1. 四川省治理荒漠化基金会, 四川 成都 611130;
    2. 四川省太源生物有机肥有限责任公司, 四川 广元 628000;
    3. 若尔盖县科学技术和农业畜牧局, 四川 若尔盖 624500
  • 收稿日期:2019-06-12 修回日期:2019-07-27 出版日期:2019-10-15 发布日期:2019-11-09
  • 通讯作者: 雷雄
  • 作者简介:宋君祥(1962-),男,四川成都人,主要从事退化草地生态修复研究,E-mail:2200600455@qq.com
  • 基金资助:
    2019年度中央引导地方科技发展专项—“川西北高寒高原退化草地生态修复工程研究与示范”（2019ZYD065）资助

Effects of Bioorganic Fertilizer on Community Diversity and Production Performance of Degraded Grassland

SONG Jun-xiang1, LEI Xiong1, YE Ming-qing2, ZHANG Jing-le1, YANg Ying1, CAI Dong-yang1, ZHA De3   

  1. 1. Sichuan province foundation for fesertification fontrol(SCSFDC), Chengdu, Sichuan Province, 611130, China;
    2. Sichuan Tai-yuan biological organic fertilizer co. LTD, Guang yuan, Sichuan Province 628000, China;
    3. Science and technology and agricultural livestock bureau of Ruoergai county, Ruoergai, Sichuan Province, 624500, China
  • Received:2019-06-12 Revised:2019-07-27 Online:2019-10-15 Published:2019-11-09

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摘要： 为了解天然退化草地植物群落物种多样性和地上生物量对生物有机肥的响应，本试验以川西北天然退化草地（轻度退化、重度退化）为研究对象，采用完全随机试验设计，通过测定植物群落物种数、植株高度、盖度和频度以及地上生物量和牧草品质，探究生物有机肥对退化草地物种多样性及其生产性能的影响。结果表明：生物有机肥可以提高植株高度、盖度，增加草地植物群落中物种数量，改善草地植物群落结构和提高群落稳定性；有机肥使轻度退化草地牧草产量提高了2.05倍（P<0.01）、粗蛋白含量和总磷含量比对照分别增加46.32%和69.89%；使重度退化草地（沙化地）牧草产量提高1.83倍（P<0.01），粗蛋白含量和粗脂肪含量分别比对照提高63.23%和22.73%，且在两种退化草地中均显著降低了中性洗涤纤维和酸性洗涤纤维的含量（P<0.05），提高了牧草的适口性和消化率。

关键词: 生物有机肥, 退化草地治理, 生物多样性, 牧草产量, 牧草品质

Abstract: In order to understand the plant community species diversity and plant above-ground biomass in response to bio-organic fertilizer in natural degraded grasslands (slightly,severely degraded),we carried out this study in northwest plateau,Sichuan province. In a completely randomized trial,we determined the effects of bio-organic fertilizer on natural degradation of grassland plant community species;plant height,coverage and frequency,the ground biomass and forage quality;plant community and its production performance. The results showed that organic fertilizereffectively improved plant height and coverage,promoted the number of species in grassland plant community,also improved the diversity and stability of grassland plant community structure. Bio-organic fertilizer increased the herbage yield of light degraded grassland by 2.05 times (P < 0.01),increased crude protein content and total phosphorus content by 46.32% and 69.89% respectively. Moreover,bio-organic fertilizer increased the grass yield,crude protein and crude fat contents of severely degraded grassland (desertification land) by 1.83 times (P < 0.01),63.23% and 22.73%,respectively,and significantly reduced the content of NDF and ADF (P < 0.05),and improved the forage palatability,and digestibility.

Key words: Biological organic fertilizer, Degraded grassland management, Biodiversity, Forage yield, Herbage quality

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