| 长期定位施肥小麦田间杂草生物多样性的变化研究 |
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| 引用本文： | 尹力初,蔡祖聪. 长期定位施肥小麦田间杂草生物多样性的变化研究[J]. 中国生态农业学报, 2005, 13(3): 57-59 |
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| 作者姓名： | 尹力初 蔡祖聪 |
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| 作者单位： | 中国科学院南京土壤研究所,南京,210008 |
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| 摘 要： | 长期定位试验研究不同施肥小麦苗期田间杂草生物多样性的变化结果表明,不同施肥处理田间杂草种类与各杂草相对丰度均发生变化,且各处理间Shannon多样性指数(H′)、Shannon均匀度指数(E)和Margalef物种丰富度指数(DMG)均存在差异,其原因可能是由于不同施肥造成各处理间土壤养分的不同,各种杂草的生长因而受其不同影响所致。
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| 关 键 词： | 长期定位施肥 小麦田 杂草 生物多样性 |
| 收稿时间： | 2004-06-19 |
| 修稿时间： | 2004-06-19 |
The change of the weed biodiversity in wheat field under a long-term located fertilization |
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| YIN Li-Chu and CAI Zu-Cong. The change of the weed biodiversity in wheat field under a long-term located fertilization[J]. Chinese Journal of Eco-Agriculture, 2005, 13(3): 57-59 |
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| Authors: | YIN Li-Chu and CAI Zu-Cong |
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| Affiliation: | Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China;Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China |
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| Abstract: | The change of the weed biodiversity in wheat field under a long-term located fertilization was studied.The results show that under different fertilization treatments,the species and relative abundance of weeds are changed,the diversity indices of Shannon's [WTBX]H,Shannon's [WTBX]E and Margalef's [WTBX]D_(MG) are different.It is due to the different amounts of available soil nutrients which maybe have different impacts on the growth of different weeds. |
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| Keywords: | Long-term located fertilization Wheat field Weed Biodiversity |
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