| 钟圣赟， 苗妮娜， 李昱言，等.海南岛海防林替代树种的筛选——基于土壤微生物群落功能多样性方法[J].广东农业科学,2015,42(5):119-126 |
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海南岛海防林替代树种的筛选——基于土壤微生物群落功能多样性方法 |
| Selection of alternative tree species for coastal protective forest in Hainan Island Based on the functional diversity of soil microbial community |
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| DOI： |
| 中文关键词: 土壤 微生物多样性 AWCD Biolog-ECO 天然海防林 |
| 英文关键词: soil曰microbial diversity曰AWCD曰Biolog-ECO曰natural coastal protective forest |
| 基金项目: |
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| 摘要点击次数: 1255 |
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| 中文摘要: |
| 运用 Biolog-ECO 技术‘以万宁沿海 3 个地区 8 种优势植物群落为研究对象‘研究了不同植被类
型、不同土层土壤微生物群落碳源代谢的多样性。 结果表明：（1）土壤微生物对单一碳源的利用强度随培养时
间的增加呈递增趋势‘上层土对碳源的总体利用能力较下层土的强；（2）两个土层的 Shannon 多样性指数榄仁
树均最低‘上层土白楸最高‘下层土蕨类+“牡丹+桃金娘等最高；（3）土壤微生物群落对 4 类碳源的利用率因
植被类型而异‘且糖类是导致上层土壤微生物代谢差异的敏感碳源；糖类和氨基酸是导致下层土壤微生物代
谢差异的敏感碳源；（4）土壤微生物对单一碳源的利用强度与其多样性呈极显著正相关。 |
| 英文摘要: |
| Based on Biolog-ECO plate technology, the carbon source metabolism diversity of different vegetation
types and soil microbial communities of different soil layers under 8 single species -dominated communities
distributing in 3 coastal areas of Wanning were analyzed. The results showed that the utilization intensity of soil
microbe to single carbon source increased with the increase of incubation time, and the utilization intensity of topsoil
microbe to the carbon source was greater than that of subsoil. Shannon diversity indexes in two soil layers indicated
that Terminalia catappa was the lowest, Mallotus paniculatus was the highest in the topsoil, and Dicranopteris +
Melastoma+Rhodomyrtus tomentosa was the highest in the subsoil. The utilization ratio of soil microbial community to
4 kinds of carbon sources varied according to the different vegetation types, and the sugar was the sensitive carbon
source to cause the differences of soil microbial metabolism in topsoil, sugars and amino acids were the sensitive
carbon sources to cause the differences of soil microbial metabolism in subsoil. There was a positive correlation
between the utilization intensity of soil microbial to a single carbon source and its diversity. |
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