| 2种野生岩生植物下土壤微生物生态分布研究 |
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| 引用本文： | 王慧芳,罗承德.2种野生岩生植物下土壤微生物生态分布研究[J].林业科学,2006,42(8):139-143. |
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| 作者姓名： | 王慧芳 罗承德 |
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| 作者单位： | 1. 四川农业大学林学与园艺学院,雅安,625014;中国科学院水利部水土保持研究所,黄土高原土壤侵蚀与旱地农业国家重点实验室,杨凌,712100;中国科学院研究生院,北京,100101
2. 四川农业大学林学与园艺学院,雅安,625014 |
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| 摘 要： | 公路、铁路等道路的建设严重改变原有的景观(张翼等,2000).尤其在我国南方,多山地丘陵,道路建设形成大量裸露的陡峭岩石边坡给绿化工作带来更大困难.岩石边坡未形成成熟土壤,坡度大,水分易流失、蒸发,一般绿化植物不能生长.选择适生于岩石边坡的野生岩生植物,是进一步解决岩石边坡植被恢复这一难题的关键.
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| 关 键 词： | 土壤微生物区系 岩生植物 优势菌属 |
| 文章编号： | 1001-7488(2006)08-0139-05 |
| 收稿时间： | 2004-10-29 |
| 修稿时间： | 2004年10月29 |
Study on Ecological Distribution of Soil Microbes under Two Kinds of Petrophifle Plants |
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| Wang Huifang,Luo Chengde.Study on Ecological Distribution of Soil Microbes under Two Kinds of Petrophifle Plants[J].Scientia Silvae Sinicae,2006,42(8):139-143. |
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| Authors: | Wang Huifang Luo Chengde |
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| Abstract: | Two kinds of petrophifle plants (Pogonatherum panideum and Erioophorum comosum) are broadly grown on the rock slope of roads in the southwest of China. The microfloras in the soil nearby the rhizosphere of two kinds of petrophifle plants were studied in different month in order to investigate the pattern of ecological distribution of soil microbes. The results of incubation by the dilution plate count showed the amount of soil microbes significantly varied with time. The amount of microbes in the soil under P. panideum got the peak in May, then decreased in September, November, July, March and January; and to E. comosum, the amount of soil microorganisms was greater in September than in other months and became less in November, May, March, January and July. Preliminary analysis showed there were the differences of soil microbial composition between two kinds of petrophifle plants; Bacteria was superiority in soil under P. panideum, while the average ratio of actinomyces was the greatest among the main soil microbial populations under E. comosum. Besides, 10 genera of heterotrophic bacteria, 13 genera of heterotrophic filamentous fungi and 2 genera of heterotrophic actinomyces were identified, P.asymmetrica, Trichoderma, Fusarium, Paecilomyces, Cladosporium, Griserubro_violaceus, Albosporus, Gloucus, Aureus, Cinereus, Grideofuseus, Bacillus and Pseudomonas were dominant in soils under two kinds of petrophifle plants, and it indicated the dominant genera of soil microbes were varied with season turning. When biochemical activities of soil microbes were detected, we found 42.7% of microbes excreted amylase and 53.4% of microbes could decompose cellulose. |
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| Keywords: | soil microflora petrophifle plants dominant genera |
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