| 玉米免耕秸秆覆盖对土壤微生物群落功能多样性的影响 |
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| 引用本文： | 董立国,袁汉民,李生宝,袁海燕,潘占兵.玉米免耕秸秆覆盖对土壤微生物群落功能多样性的影响[J].生态环境,2010,19(2):444-446. |
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| 作者姓名： | 董立国 袁汉民 李生宝 袁海燕 潘占兵 |
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| 作者单位： | 1. 宁夏农林科学院,宁夏,银川,750002
2. 宁夏气象科研所,宁夏,银川,750002 |
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| 基金项目： | Challenge Program on Water & Food -Conservation agriculture for the dry-land areas of the Yellow River Basin，国家"十一五"科技攻关计划重大项目 |
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| 摘 要： | 为了研究免耕对土壤微生物功能多样性的影响,本项试验运用Biolog-ECO检测手段,对连续2年的玉米（Zea mays L.）保护性耕作试验全部秸秆覆盖免耕和常规耕作2种耕作处理的土样进行了土壤微生物功能多样性研究。试验表明：（1）免耕土壤微生物对碳源利用率以及不同碳源利用率高于常规耕作,免耕对总体碳源利用率平均值比常规耕作高53.1%;（2）免耕土壤微生物丰富度指数、多样性指数显著高于常规耕作,免耕微生物群落丰富度指数22.33±0.57,多样性指数3.02±0.04,常规耕作微生物群路丰富度指数14.33±1.15,多样性指数2.56±0.12。免耕秸秆覆盖耕作措施促进了土壤微生物活性、增加土壤微生物数量。
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| 关 键 词： | 免耕 玉米秸秆 土壤微生物 Biolog—ECO 半干旱黄土丘陵区 |
Influence on soil microbial community functional diversity for maize no-tillage with straw mulch |
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| DONG Liguo,YUAN Hanmin,LI Shengbao,YUAN haiyan,PAN Zhanbin.Influence on soil microbial community functional diversity for maize no-tillage with straw mulch[J].Ecology and Environmnet,2010,19(2):444-446. |
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| Authors: | DONG Liguo YUAN Hanmin LI Shengbao YUAN haiyan PAN Zhanbin |
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| Institution: | DONG Liguo1,YUAN Hanmin2,LI Shengbao1,YUAN haiyan3,PAN Zhanbin1 1.Ningxia Academy of Agriculture , Forestry Science,Yinchuan 750002,China,2 Ningxia Meteorological Institute |
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| Abstract: | For study on effect of zero tillage in improving Soil microbial functional diversity,two kinds of soil samples,which came from two treatments that zero tillage covering whole maize straw and convention tillage non-covering in two-year-continuum,were tested in diversity of soil microbial function by Biolong-ECO measure in this paper.The result showed that (1) Microbial utilization rate of all carbon sources or different form carbon sources utilization in zero tillage treatment were higher than conventional t... |
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| Keywords: | Biolog-ECO zero tillage maize straw soil microorganism Biolog-ECO mountain area of southern Ningxia |
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