复合微生物肥料对羊草草原植物群落物种多样性和生物量的影响

doi:10.11686/cyxb2017171

草业学报 ›› 2017, Vol. 26 ›› Issue (10): 108-117.DOI: 10.11686/cyxb2017171

复合微生物肥料对羊草草原植物群落物种多样性和生物量的影响

姚静¹, 陈金强¹, 辛晓平¹, 卫智军², 乌仁其其格³, 闫瑞瑞^{1, *}, 白玉婷², 代景忠²

1.中国农业科学院农业资源与农业区划研究所,呼伦贝尔草原生态系统国家野外科学观测研究站,北京100081;
2.内蒙古农业大学草原与资源环境学院,内蒙古呼和浩特010019;
3.呼伦贝尔学院生命科学与化学学院,内蒙古海拉尔021008

收稿日期:2017-04-06 出版日期:2017-10-20 发布日期:2017-10-20
通讯作者: yanruirui19790108@163.com
作者简介:姚静(1988-),女,内蒙古通辽人,科研助理,在读硕士。E-mail:3766374474@qq.com
基金资助:
公益性行业(农业)科研专项(201303060),国家重点研发计划(2016YFC0500601),中央级公益性科研院所基本科研业务费专项(1610132016033,1610132016027)和现代农业产业技术体系建设专项资金(CARS-35-11)资助

Effect of combined microbial fertilizer on plant species diversity and biomass of common species in the Hulunbuir Leymus chinensis meadow steppe

YAO Jing¹, CHEN Jin-Qiang¹, XIN Xiao-Ping¹, WEI Zhi-Jun², WU REN Qi-Qi-Ge³, YAN Rui-Rui^{1, *}, BAI Yu-Ting², DAI Jing-Zhong²

1.Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences,Hulunbuir Grassland Ecosystem Research Station, Beijing 100081, China;
2.College of Grassland and Resources Environmental, Inner Mongolia Agricultural University, Hohhot 010019, China;
3.Life Science and Chemistry School at Hulunbuir College, Hailar 021008, China

Received:2017-04-06 Online:2017-10-20 Published:2017-10-20

摘要/Abstract

摘要： 为了解草原植物群落物种多样性和植物地上生物量对施加复合微生物肥料的响应,在内蒙古呼伦贝尔羊草草原,分别设置对照(CK)、单施腐殖酸复合微生物肥料(F)、蜜糖发酵复合微生物肥料(T)、海藻酸复合微生物肥料(H)、3种复合微生物肥料混合施入(F+T+H)、腐殖酸加菌剂复合微生物肥料(F+J)和海藻酸加菌剂复合微生物肥料(H+J)7个处理,研究复合微生物肥料对草原群落植物物种多样性和植物地上生物量的影响。结果表明:(1)与对照组相比,2014-2016年施加F、H植物群落特征无明显变化,施加F+T+H植物群落密度分别增加了26.72%、17.94%、34.64%,地上生物量分别增加了7.18%、49.97%、47.64%,其他施肥处理群落特征各年变化不同;(2)2014-2016年施加F植物群落主要物种的重要值无明显变化,施加 T、H、F+T+H、H+J禾本科、豆科植物重要值增加,根茎型禾草(羊草等)对复合微生物肥料添加的响应显著高于丛生型禾草和莲座型菊科植物等草类;(3)2014-2016年施加F, Margalef指数分别比对照组减小了16.40%、5.22%、37.22%,施加H各指数无明显变化,施加F+T+H, Margalef指数、Shannon-Wiener指数、Pielou指数均增加;2014和2015年施加H+J 的Pielou指数分别比对照组增高了7.62%、8.70%。上述结果说明,施加复合微生物肥料对羊草草原植物群落物种多样性和植物地上生物量有显著的影响,其中F+T+H植物群落物种多样性和植物地上生物量显著增加,此外还应充分考虑施肥年降水量,从而实现对草地资源的合理修复。

Abstract: The aim of this study was to evaluate the responses of grassland plant species diversity and the aboveground biomass of several common plant species to microbial fertilizer. We set up a factorial experiment to test the interactive effect of six microbial fertilizers in the Leymus chinensis meadow steppe in Hulunbuir in August 2014-2016. The seven treatments were as follows: control (CK), humic acid (F), alginic acid (H), fermented molasses (T), humic acid+fermented molasses+alginic acid (F+H+T), humic acid+compound microbial inoculant (F+J), and alginic acid+compound microbial inoculant (H+J). The results showed that addition of F and H from 2014 to 2016 did not significantly affect plant communities. Addition of F+H+T in 2014, 2015, and 2016 increased plant density by 26.72%, 17.92%, and 34.64%, respectively, and increased aboveground biomass by 7.18%, 49.97%, and 47.64% respectively. Addition of F from 2014 to 2016 did not significantly affect the plant community, but addition of T, H, F+H+T, and H+J increased the importance of the Gramineae and Leguminosae. Rhizome-type grasses (L. chinensis) showed greater responses to compound microbial fertilizers than did clonal grasses and rosettle grasses. Addition of F in 2014, 2015, and 2016 decreased the Margalef index by 16.40%, 5.22%, and 37.22%, respectively. Addition of H in 2014-2016 did not affect the diversity index, but addition of F+H+T in 2014-2016 increased the Margalef index, the Shannon-Wiener index, and the Pielou index. Addition of H+J in 2014 to 2015 increased the Pielou index by 7.62% and 8.70%, respectively. These results show that application of microbial fertilizer can significantly affect the plant community, species diversity, and aboveground biomass in the Hulunbuir L. chinensis meadow steppe. The combination of F+T+H had the strongest effect to increase plant community species diversity and aboveground biomass. Precipitation should also be taken into consideration in the restoration of grassland resources.

姚静, 陈金强, 辛晓平, 卫智军, 乌仁其其格, 闫瑞瑞, 白玉婷, 代景忠. 复合微生物肥料对羊草草原植物群落物种多样性和生物量的影响[J]. 草业学报, 2017, 26(10): 108-117.

YAO Jing, CHEN Jin-Qiang, XIN Xiao-Ping, WEI Zhi-Jun, WU REN Qi-Qi-Ge, YAN Rui-Rui, BAI Yu-Ting, DAI Jing-Zhong. Effect of combined microbial fertilizer on plant species diversity and biomass of common species in the Hulunbuir Leymus chinensis meadow steppe[J]. Acta Prataculturae Sinica, 2017, 26(10): 108-117.

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复合微生物肥料对羊草草原植物群落物种多样性和生物量的影响

Effect of combined microbial fertilizer on plant species diversity and biomass of common species in the Hulunbuir Leymus chinensis meadow steppe

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