| 王贵1, 2，赵骥民2，郝清玉1，严廷良1，覃青青1，黄良春1，蒲思杏1，刘青1.海南海岸青皮林土壤微生物类群的数量特征[J].广东农业科学,2014,41(3):70-73 |
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海南海岸青皮林土壤微生物类群的数量特征 |
| Effects of biochar on soil fertility and environment |
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| DOI： |
| 中文关键词: 青皮林 生理类群细菌 数量分布 |
| 英文关键词: biochar soil environment soil structure soil fertility |
| 基金项目:海南省自然科学基金（311048）；国家科技支撑计
划项目（2012BAC18B04）；国家自然科学基金（31060092） |
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| 中文摘要: |
| 为了从土壤微生物方面揭示海南石梅湾海岸青皮天然林更新的机理, 对青皮林土壤微生物进行了调查
分析。土壤调查采用5 点取样法，分别于旱季和雨季对两个土层的根际土和根外土进行取样，并用MPN 法分析了土
壤中5 个生理类群细菌的数量分布特征。结果表明院青皮林土壤中除尚未检测出亚硝化细菌外，其他4 个生理类群
细菌的数量彼此之间差别很大，其中氨化细菌的数量>>好气性自生固氮细菌>>反硝化细菌>>好气性纤维素分解细
菌；根际土壤中的氨化细菌、反硝化细菌和好气性纤维素分解细菌数量比非根际土壤少，但好气性自生固氮菌数量
则相反；下层土中氨化细菌的数量略高于上层土，但好气性自生固氮细菌、反硝化细菌和纤维素分解细菌多集中分
布在上层土内。 |
| 英文摘要: |
| Biochar is a carbon-rich product produced by pyrolysis of crop residues and other organic material under
oxygen-limited conditions. The study on biochar is still in the starting stage. Different approaches were adopted in different
research and areas, and leading to variable conclusions.This paper outlined the research progress in domestic and foreign
on the effects of biochar application on soil structure, soil pollution, the process of transformation of soil carbon and
nitrogen and the research in aspect of soil microbial communities and enzyme activity. It summed up the problems of the
application of biochar on soil fertility and soil amendment. This work would be expected to provide a theoretical direction
for the future study. |
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