生态环境学报2017，Vol.26Issue(4)：597-604,8.DOI:10.16258/j.cnki.1674-5906.2017.04.008
微生物肥料对呼伦贝尔打孔羊草草甸草原土壤微生物及酶活性的影响研究
Effect of Combined Microbial Fertilizer on Soil Microorganism and Enzyme Activity in the Hulunber Punching Leymus chinensis Meadow Steppe
摘要
Abstract
In order to provide scientific basis for improvement,restoration and reasonable use of degraded Leymus chinensismeadow steppe ecosystem, the effect of different microbial fertilizer addition levels on the soil nutrients,soil microbial biomass and soil enzyme activities of on hulunbuir perforated L. chinensis meadow steppe mowing pasture was studied and the key soil factor that its affecting soil microbial biomass carbon and nitrogen and soil enzyme activity was analyzed. The results show that: (1) soil total carbon and total nitrogen was highest in humic acid + high microbial agents (F+J) treatment in a normal or sufficient year for rain, and soil total carbon and total nitrogen respectively increased 1.84%~18.53% and 1.24%~31.67%, there was no significant differences among all other the treatments; (2) Soil biological activity is closely related to soil hydrothermal condition, the microbial biomass carbon and nitrogen contents were highest in F+J treatment and H+J treatment in the rain normal years, and respectively increased 57.52% and 19.01% than those of CK, while the microbial biomass carbon and nitrogen contents were not significant affected under different treatments in dry year; (3) Soil invertase of H+J and F+J treatment were significantly higher than other treatment in 2014, increased by 10.68% and 10.12% respectively than CK, whereas in dry year of 2015, soil invertase was significantly higher in F, H, T and F+J treatments than CK (increased ranged from 4.72% to 9.84%), soil catalase in F and F+J treatments were significantly higher than CK, increased by 2.50%; And (4) the key factor of in fluence soil invertase enzyme, utease enzyme, catalase enzyme respectively was soil totle C, soil aviliable K, soil aviliable N and conductivity; The key factor of influence soil microbial biomass carbon and nitrogen respectively was soil totle P, soil aviliable P. These results implied that compound microbial fertilizer and microbial agents together could be useful to increase the soil enzyme activity, microbial biomass carbon and nitrogen contents of hulunbuir L. chinensis meadow steppe, and to improve the grassland soil fertility status of biological chemistry.关键词
羊草草甸草原/打孔/微生物肥料/土壤肥力/土壤微生物/土壤酶活性Key words
Leymus Chinensis meadow steppe/physical improvement/compound microbial fertilizer/soil fertility/soil microbial biomass/soil enzyme activity分类
农业科技引用本文复制引用
闫瑞瑞,卫智军,乌仁其其格,陈金强,代景忠,姚静,白玉婷,辛晓平..微生物肥料对呼伦贝尔打孔羊草草甸草原土壤微生物及酶活性的影响研究[J].生态环境学报,2017,26(4):597-604,8.基金项目
公益性行业(农业)科研专项(201303060) （农业）
国家重点研发计划项目(2016YFC0500601) （2016YFC0500601）
中央级公益性科研院所基本科研业务费专项(1610132016033 （）
1610132016027) （）
现代农业产业技术体系建设专项(CARS-35-11) （CARS-35-11）
