| 横断山北部高山区不同生态条件下土壤微生物数量及其与生态因子的相关性 |
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| 引用本文： | 邵宝林,龚国淑,张世熔,余霞,杨丹玲,张洪,刘晓璐.横断山北部高山区不同生态条件下土壤微生物数量及其与生态因子的相关性[J].生态学杂志,2006,25(8):885-890. |
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| 作者姓名： | 邵宝林 龚国淑 张世熔 余霞 杨丹玲 张洪 刘晓璐 |
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| 作者单位： | 1. 四川农业大学农学院,雅安,625014
2. 四川农业大学资源环境学院,雅安,625014 |
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| 基金项目： | 四川农业大学校科研和教改项目 |
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| 摘 要： | 采用全球定位系统(GPS)采集了横断山北部高山区35个样点的土样,用稀释平板法对该区细菌、真菌和放线菌进行分离计数,并分析了微生物数量与土壤养分、土壤水分、土地利用方式和pH等因子的相关性。结果表明,该区域3大类土壤微生物数量表现为细菌>放线菌>真菌。土壤微生物数量在不同区域表现为松林口>雀儿山>折多山;林地微生物比草地丰富,但不及草地微生物均衡。微生物数量与土壤理化因子间的相关分析表明,放线菌数量与pH呈显著正相关,真菌数量与土壤全钾含量呈极显著正相关。
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| 关 键 词： | 横断山北部高山区 土壤微生物 数量 生态因子 相关性 |
| 文章编号： | 1000-4890(2006)08-0885-06 |
| 修稿时间： | 2005年11月15 |
Soil microbial quantity and its relations with ecological factors in northern alp region of Hengduan Mountains |
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| SHAO Baolin,GONG Guoshu,ZHANG Shirong,YU Xia,YANG Danling,ZHANG Hong,LIU Xiaolu.Soil microbial quantity and its relations with ecological factors in northern alp region of Hengduan Mountains[J].Chinese Journal of Ecology,2006,25(8):885-890. |
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| Authors: | SHAO Baolin GONG Guoshu ZHANG Shirong YU Xia YANG Danling ZHANG Hong LIU Xiaolu |
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| Abstract: | With the help of GPS(Global Position System),thirty-five surface soil samples were collected from the northern alp region of Hengduan Mountains in Qinghai-Xizang Plateau.The quantities of soil fungi,bacteria and actinomycetes were determined by dilution plate technique,and their correlations with soil fertility, soil humidity,land-use type,and soil pH were analyzed. The results showed that in this region,soil microbial quantity was decreased in the order of bacteria >actinomyces >fungi,and Songlinkou>Que'er Mountain>Zheduo Mountain.Forestland was richer in microbes than grassland,but the proportion of various microbes in forestland was lower than that in grassland.A significant positive correlation was observed between soil actinomycetes quantity and soil pH value,and between soil fungal quantity and soil total potassium content. |
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| Keywords: | northern alp region of Hengduan Mountains soil microbe quantity ecological factor correlation |
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