| 李江涛，罗甜甜，杜满聪，倪 杰，龚建周.畜禽粪肥添加及干湿交替强度对土壤微生物功能多样性的影响[J].广东农业科学,2018,45(6):68-77 |
|
查看全文
HTML
畜禽粪肥添加及干湿交替强度对土壤微生物功能多样性的影响 |
| Effects of livestock and poultry manure amendment and wetting-drying cycle on functional diversity of soilmicrobial community |
| |
| DOI：10.16768/j.issn.1004-874X.2018.06.012 |
| 中文关键词: 水肥管理 干湿交替 鸡粪 猪粪 土壤微生物群落 |
| 英文关键词: water and fertilizer management wetting-drying cycle poultry manure livestock manure soil
microbial community |
| 基金项目:国家自然科学基金（41101302, 41101278） |
|
| 摘要点击次数: 1871 |
| 全文下载次数: 644 |
| 中文摘要: |
| 水肥管理是农业土壤田间管理的重要措施，对农业土壤质量和生态稳定性具有重要的影响。以
长期施用化肥的稻麦轮作低有机碳含量的犁底层土壤为供试土壤，通过设置添加畜禽粪肥处理和干湿交替
强度处理的室内培养实验，研究水肥管理对土壤微生物群落功能多样性的影响。结果表明，添加畜禽粪肥
显著提高了土壤微生物群落对碳源的利用能力，添加鸡粪肥和猪粪肥处理土壤总AWCD 值分别为空白对照
的4.5 倍和5.9 倍；土壤微生物群落丰富度指数、辛普森指数和香农指数均显著高于对照。干湿交替强度对
微生物群落功能多样性也产生了明显影响，表现出对土壤微生物群落功能多样性的激发作用，其中强干湿
交替最为明显。因子分析、对应分析和聚类分析结果表明，添加畜禽粪肥是土壤微生物群落功能多样性变
化的主控因子，而干湿交替胁迫是第二控制因子。综合分析结果表明，添加畜禽粪肥和干湿交替主要是通
过改变土壤中碳水化合物和氨基酸类碳源等影响土壤微生物群落功能多样性。 |
| 英文摘要: |
| Water and fertilizer management is one of important measures in agricultural field management，it
may control the quality and ecological stability of agricultural soil. In this study，the tested soil samples were taken
from the plough-pan of a rice and wheat rotation agricultural system with long-term application of chemical fertilizer.
The organic carbon content of tested soil was poor. Incubation experiment was established with the amendment
of livestock and poultry manure and the intensity of wetting-drying cycle，to understand the effects of water and
organic fertilizer management on soil microbial community functional diversity. Results showed that livestock and
poultry manure amendment significantly improved the carbon using ability of soil microbial community. The soil
AWCD value with poultry manure and livestock manure treatment was 4.5 and 5.9 times higher than that in control
soil respectively；Richness index，Simpson index and Shannon index of soil microbial community were significantly
higher than those of control. Wetting-drying cycle intensity also had a significant influence on soil microbial
community functional diversity，showing the priming effect on soil microbial community functional diversity. And the
strong wetting-drying cycle had the most obvious effect on it. Results of factor analysis，correspondence analysis and
cluster analysis showed that livestock and poultry manure amendment was the main control factor on soil microbial
community function diversity，while the wetting-drying cycle was the second control factor. The results indicated that the combined effect of livestock and poultry manure amendment and wetting-drying cycle could influence the
functional diversity of soil microbial community by changing the carbohydrate and amino acid carbon source in soil. |
|
查看/发表评论 下载PDF阅读器 |
