十万大山地区典型次生阔叶林土壤微生物数量及酶活性的季节动态
为了评价广西十万大山南麓次生阔叶林土壤质量的变化,该研究以广西十万大山南麓典型季雨林中的次生阔叶林土壤为对象,采用实地调查与实验分析相结合的方法,对其土壤微生物数量和土壤蔗糖酶、脲酶、磷酸酶、过氧化氢酶的季节动态规律进行研究。结果表明：土壤过氧化氢酶、脲酶、蔗糖酶和酸性磷酸酶在垂直分布上均表现为0-10 cm土层高于10-20、20-30 cm土层,差异显著（P夏季〉春季〉冬季趋势。土壤细菌、放线菌和真菌含量均随着土壤深度的增加而减小,差异显著（P秋季〉春季〉冬季的变化趋势。相对于旱季,在十万大山南麓地区,典型次生阔叶林土壤微生物数量及酶活性季节性变化对高温多降水的雨季响应更明显。...
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| Published in | 广西植物 Vol. 36; no. 2; pp. 200 - 207 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
广西喀斯特植物保育与恢复生态学重点实验室, 广西壮族自治区中 国 科 学 院 广西植物研究所,广西 桂林541006
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-3142 |
| DOI | 10.11931/guihaia.gxzw201410034 |
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| Abstract | 为了评价广西十万大山南麓次生阔叶林土壤质量的变化,该研究以广西十万大山南麓典型季雨林中的次生阔叶林土壤为对象,采用实地调查与实验分析相结合的方法,对其土壤微生物数量和土壤蔗糖酶、脲酶、磷酸酶、过氧化氢酶的季节动态规律进行研究。结果表明：土壤过氧化氢酶、脲酶、蔗糖酶和酸性磷酸酶在垂直分布上均表现为0-10 cm土层高于10-20、20-30 cm土层,差异显著（P夏季〉春季〉冬季趋势。土壤细菌、放线菌和真菌含量均随着土壤深度的增加而减小,差异显著（P秋季〉春季〉冬季的变化趋势。相对于旱季,在十万大山南麓地区,典型次生阔叶林土壤微生物数量及酶活性季节性变化对高温多降水的雨季响应更明显。 |
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| AbstractList | Q948.113%Q142.3; 为了评价广西十万大山南麓次生阔叶林土壤质量的变化,该研究以广西十万大山南麓典型季雨林中的次生阔叶林土壤为对象,采用实地调查与实验分析相结合的方法,对其土壤微生物数量和土壤蔗糖酶、脲酶、磷酸酶、过氧化氢酶的季节动态规律进行研究.结果表明:土壤过氧化氢酶、脲酶、蔗糖酶和酸性磷酸酶在垂直分布上均表现为0~10 cm土层高于10~20、20~30 cm土层,差异显著(P<0.05);随季节性水热状况的变化,各种土壤酶活性有明显的季节性变化,其中0~10、10~20和20~30 cm土层中过氧化氢酶活性呈双峰模式,高峰出现在春季和秋季;土壤脲酶、酸性磷酸酶活性均呈单峰模式,高峰均出现在夏季;而蔗糖酶活性呈现秋季>夏季>春季>冬季趋势.土壤细菌、放线菌和真菌含量均随着土壤深度的增加而减小,差异显著(P<0.05);细菌、放线菌和真菌数量的季节变化大小顺序呈夏季>秋季>春季>冬季的变化趋势.相对于旱季,在十万大山南麓地区,典型次生阔叶林土壤微生物数量及酶活性季节性变化对高温多降水的雨季响应更明显. 为了评价广西十万大山南麓次生阔叶林土壤质量的变化,该研究以广西十万大山南麓典型季雨林中的次生阔叶林土壤为对象,采用实地调查与实验分析相结合的方法,对其土壤微生物数量和土壤蔗糖酶、脲酶、磷酸酶、过氧化氢酶的季节动态规律进行研究。结果表明：土壤过氧化氢酶、脲酶、蔗糖酶和酸性磷酸酶在垂直分布上均表现为0-10 cm土层高于10-20、20-30 cm土层,差异显著（P夏季〉春季〉冬季趋势。土壤细菌、放线菌和真菌含量均随着土壤深度的增加而减小,差异显著（P秋季〉春季〉冬季的变化趋势。相对于旱季,在十万大山南麓地区,典型次生阔叶林土壤微生物数量及酶活性季节性变化对高温多降水的雨季响应更明显。 |
| Abstract_FL | Soil enzyme and microbial activities regulate organic matter decomposition and nutrient release, which in turn control nutrient status of forest soils. We conducted field survey and complimentary laboratory analysis of soils of a sec-ondary broad-leaved forest in Shiwan Mountain, Guangxi, China, in 2012. We quantified soil urease, sucrose, acid phosphatase and catalase activities and assessed bacterial, actinomycetes and fungal community in 0-10, 10-20 and 20-30 cm soil layers. We also determined moisture contents of these soils. Soil enzyme activities of catalase, urease, su-crase and acid phosphatase were significantly higher ( P<0.05) in 0-10 cm soil than those in 10-20 cm and 20-30 cm soils. We found two peaks of catalase activities, in spring and in autumn at all three depths. In contrast, urease and su-crase activities showed one peak in summer at all depths. Activities of acid phosphatase followed a decreasing trend from autumn to winter: autumn>summer>spring>winter. Bacteria, actinomycetes and fungi decreased significantly ( P<0.05) with increasing soil depth and their activities decreased from summer to winter as follows summer>autumn>spring>winter. Seasonal changes in rainfall and soil moisture were attributable to the changes in soil enzyme and microbial activi-ties in this forest. |
| Author | 张德楠 徐广平 张中峰 曾丹娟 顾大形 周翠鸣 黄玉清 何成新 |
| AuthorAffiliation | 广西喀斯特植物保育与恢复生态学重点实验室、广西壮族自治区中国科学院广西植物研究所,广西桂林541006 |
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| DOI | 10.11931/guihaia.gxzw201410034 |
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| DocumentTitleAlternate | Seasonal dynamics of soil enzymes and microbial activities in a typical secondary broad-leaved forest at Shiwan Mountain,South China |
| DocumentTitle_FL | Seasonal dynamics of soil enzymes and microbial activities in a typical secondary broad-leaved forest at Shiwan Mountain, South China |
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| Keywords | Shiwan Mountain 土壤微生物数量 土壤酶活性 次生阔叶林 十万大山 soil microorganism soil enzyme secondary broad-leaved forest |
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| Notes | Soil enzyme and microbial activities regulate organic matter decomposition and nutrient release,which in turn control nutrient status of forest soils.We conducted field survey and complimentary laboratory analysis of soils of a secondary broad-leaved forest in Shiwan Mountain,Guangxi,China,in 2012.We quantified soil urease,sucrose,acid phosphatase and catalase activities and assessed bacterial,actinomycetes and fungal community in 0-10,10-20 and 20-30 cm soil layers.We also determined moisture contents of these soils.Soil enzyme activities of catalase,urease,sucrase and acid phosphatase were significantly higher（P0.05） in 0-10 cm soil than those in 10-20 cm and 20-30 cm soils.We found two peaks of catalase activities,in spring and in autumn at all three depths.In contrast,urease and sucrase activities showed one peak in summer at all depths.Activities of acid phosphatase followed a decreasing trend from autumn to winter：autumnsummerspringwinter.Bacteria,actinomycetes and fungi decreased significantly（P0.05）wi |
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| Publisher | 广西喀斯特植物保育与恢复生态学重点实验室, 广西壮族自治区中 国 科 学 院 广西植物研究所,广西 桂林541006 |
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| Snippet | 为了评价广西十万大山南麓次生阔叶林土壤质量的变化,该研究以广西十万大山南麓典型季雨林中的次生阔叶林土壤为对象,采用实地调查与实验分析相结合的方法,对其土壤微生物数量和土壤蔗糖酶、脲酶、磷酸酶、过氧化氢酶的季节动态规律进行研究。结果表明：土壤过氧化氢酶、脲酶、蔗糖酶和酸性磷酸酶在垂直分布上均表现为0-10... Q948.113%Q142.3;... |
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| SubjectTerms | 十万大山 土壤微生物数量 土壤酶活性 次生阔叶林 |
| Title | 十万大山地区典型次生阔叶林土壤微生物数量及酶活性的季节动态 |
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