摘要
柠条与沙棘两种木本灌木均具有御旱与耐旱性,是山西省半干旱气候区的结瘤植物资源优势,其共生固氮菌Rhizobia与Frankia菌系在山西石灰性土壤中的生态分布广泛,结瘤特征明显,大约每年为该生态区提供10万~20万t的生物氮素,在山西的生态环境建设、水土保持与资源利用方面发挥着较大的生态学效应,具有深入研究和广泛的利用价值。
The Peashrub and Hippophae are important resource of nitrogen - fixing plant in semi - arid region in Shanxi province. The Rhizobia and Frankia nitrogen - fixing microorganisms carry out the major processes of nitrogen cycle in Symbiotic Nitrogen Fixation System. There is a wide distribution of Rhizobia and Frankia which is resistant to stress in Shanxi province. There are 150 ~ 200 thousands ton nitrogen is produced by Symbiotic N - Fixing strains of Rhizobium sp. (Caragana) and Frankia sp. (Hippophae) in Shanxi province. The N- fixing microorganisms play roles in ecological environment and Soil and water conservation. It is worth while to further study and utilize.
出处
《山西农业科学》
2008年第9期49-52,共4页
Journal of Shanxi Agricultural Sciences
基金
山西省科技攻关项目(051038)
关键词
柠条
沙棘
共生固氮
Peashrub( Caragana Fabr)
Hippophae
Symbiotic nitrogen fixation