草业学报2024，Vol.33Issue(3)：34-45,12.DOI:10.11686/cyxb2023141
生物有机肥施加对荒漠草原植被-土壤-微生物的影响
The effect of microbial organic fertilizers application on vegetation-soil-microbe in desert steppe
摘要
Abstract
Microbial organic fertilizers(MOF)provide water retention,air permeability and fertility and are prepared from agriculture and animal husbandry waste through aerobic fermentation by high efficiency cellulose decomposer bacteria.An experimental 1 kg·m-2 application of MOF experiment in the Urat desert steppe showed that applying MOF quickly restored the vegetation-soil-microbial system in degraded desert steppe through promoting vegetation growth,improving soil physical and chemical properties,increasing quantities of microbes and other similar effects.In this experiment it vegetation cover was significantly increased by 33%,soil sticky clay content was significantly increased by 2%,soil total carbon content was significantly increased by 9%,soil total nitrogen content was significantly increased 0.9%;And 11 phyla of soil bacteria and 1 phyla of soil fungi had significant differences in occurrence.Analytically,92%of the increase in vegetation cover was explained by the MOF application and soil moisture content;84%of the increase in species richness was explained by the effects of MOF application,soil moisture content and soil electrical conductivity.Overall,these results provide evidence of efficacy,data support and technical support for the restoration of arid desert steppe through application of microbial organic fertilizers.关键词
生物有机肥/荒漠草原/植被特征/土壤微生物Key words
microbial organic fertilizers/desert steppe/vegetation characteristics/soil microbes引用本文复制引用
李俊瑶,蒋星驰,胡晋瑜,魏栋光,赵学勇,王少昆..生物有机肥施加对荒漠草原植被-土壤-微生物的影响[J].草业学报,2024,33(3):34-45,12.基金项目
国家自然科学基金项目(42071140)和内蒙古乌拉特梭梭林自然保护区长期生态监测与评估项目(E2900510)资助. （42071140）
