连作土灭菌对葡萄根际土壤微生物群落功能的影响

生态学杂志

连作土灭菌对葡萄根际土壤微生物群落功能的影响

李坤¹,朱绍坤¹,郭修武^1*,谢洪刚²,郭印山¹,刘镇东^1

(¹沈阳农业大学园艺学院，沈阳 110866； ^2辽宁经济管理干部学院，沈阳 110112)

出版日期:2016-04-10 发布日期:2016-04-10

LI Kun¹, ZHU Shao-kun¹, GUO Xiu-wu^1*, XIE Hong-gang², GUO Yin-shan¹, LIU Zhen-dong¹

(¹College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China; ^2Liaoning Economic Management Cadre Institute, Shenyang 110112, China).

Online:2016-04-10 Published:2016-04-10

摘要/Abstract

摘要： In order to explore the correlation between soil microbial community function and plant growth, using 30year continuous cropping soil of grapevines as research object, we studied the effects of sterilization of continuous cropping soil at different temperatures on the growth of grapevines and the microbial community function of rhizosphere soil. The results showed that plant height and stem diameter of grapevines grown in continuous cropping soil were lower than those in the other treatments. With the increasing sterilization temperature, the plant height and stem diameter of grapevines increased. The ratio of bacteria to fungi in rhizosphere soil increased with the increasing sterilization temperature. The activity of rhizosphere microbes using carbon source was in order of continuous cropping soil sterilized at 100 ℃ > noncontinuous cropping soil > continuous cropping soil sterilized at 60 ℃ > continuous cropping soil. The regression analysis showed that amino acid (carbon source) in Biolog ECOplate had a significant correlation with microbial metabolic activity of rhizosphere soil. PCA analysis showed that lysine in root exudate had a highest contribution to the variance of principal components in each treatment, and it may play an important role in the obstacle of continuous cropping of grapevines.

关键词: 生态系统质量, 生产能力指数, 遥感, 生态系统稳定性, 生态系统承载力, 疏勒河流域

Key words: ecosystem stability, Shule River basin, remote sensing, ecosystem productivity index, ecosystem bearing capacity, ecosystem quality

李坤1,朱绍坤1,郭修武1*,谢洪刚2,郭印山1,刘镇东1. 连作土灭菌对葡萄根际土壤微生物群落功能的影响[J]. 生态学杂志.

LI Kun1, ZHU Shao-kun1, GUO Xiu-wu1*, XIE Hong-gang2, GUO Yin-shan1, LIU Zhen-dong1. [J]. cje.

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连作土灭菌对葡萄根际土壤微生物群落功能的影响

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