机械化秸秆还田对稻田土壤微生物功能多样性的影响
毕业论文关键词：机械化秸秆还田；Biolog Ecoplate技术；微生物群落功能多样性；微生物物种多样性
The effect of mechanized stalk on the microbial function of paddy fields
Abstract：In order to study the effect of mechanized straw returning on the microbial functioning persity of paddy soil (0 ~ 15cm), the suitable tillage methods were set up in different areas. In 2017, in Rugao, Jintan and Siyang areas of Jiangsu Province, rotary tillage (RT) and plowing (PT) straw returning and cropping of straws were carried out. The soil samples were analyzed by Biolog Ecoplate technique. The persity of soil microbial species under different treatments was analyzed by comparing the average color change rate (AWCD), dominance index (D), persity index (H) and evenness index (E). Reanalysis difference functional persity of soil microbial utilization of carbon by comparing different treatment for different categories Microbial utilization of carbon sources . The results showed that the soil microbial persity index was significantly increased under straw treatment, and the absorption of different kinds of carbon sources was more persified. Specific farming methods (plowing or tillage tillage) should be based on specific regional differences and choose a more appropriate one.
Key words: Mechanized straw returning; Biolog Ecoplate technology; microbial community functional persity; microbial species persity
目 录
摘要1
关键词1
Abstract1
Key words1
引言1
1材料与方法2
1.1实验材料 2
1.2实验方法 3
1.2.1土壤样品采集3
1.2.2土样接种实验处理3
1.2.3 Biolog Ecoplate数据来源原理3
1.2.4数据的处理3
2结果和分析4
2.1不同处理下土壤微生物群落平均吸光率情况对比 4
2.2不同处理下土壤微生物群落主要成分分析（PCA） 5
2.3不同处理下土壤微生物多样性指数分析7
2.4不同处理下土壤微生物对不同碳源的代谢吸收程度对比8
3结论与讨论10
致谢10
参考文献10
机械化秸秆还田对稻田土壤微生物功能多样性的影响
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