| 鹤山3种人工林土壤N_2O浓度的时间和空间变异 |
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| 引用本文： | 周俊岸,周丽霞,林永标,丁明懋,傅声雷,蚁伟民.鹤山3种人工林土壤N_2O浓度的时间和空间变异[J].福建林学院学报,2005,25(3):264-268. |
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| 作者姓名： | 周俊岸 周丽霞 林永标 丁明懋 傅声雷 蚁伟民 |
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| 作者单位： | 中国科学院华南植物园,广东,广州,510650 |
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| 基金项目： | 国家自然科学基金资助项目(30170192);中国科学院"百人计划". |
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| 摘 要： | 用特制的不锈钢采气管及气相色谱仪对鹤山3种人工林土壤不同深度N2O浓度进行了原位采样及分析.结果表明:3种人工林土壤剖面N2O浓度具有较大的时空变异.马占相思林土层N2O浓度的顺序为15cm<30cm<45cm<60cm土层;荷木林和松林各土层的浓度顺序为30cm<15cm<45cm<60cm土层.对3种人工林整个观测期间相同深度N2O浓度的月平均值进行比较,15、30、45cm3个土层的高低顺序均为荷木林<马占相思林<松林,60cm土层则是马占相思林<荷木林<松林.在季节变化方面,马占相思林和荷木林有相似的变化趋势,以雨热充足的8月份较高,到11月份又有上升的趋势.松林N2O的季节变化趋势则是5、6月份以及8、9月份浓度较高.
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| 关 键 词： | 鹤山地区 人工林 不同土层 N2O |
| 文章编号： | 1001-389X(2005)03-0264-05 |
| 修稿时间： | 2005年1月13日 |
Temporal and spatial variation of nitrous oxide concentration in different soil depth under three plantations in Heshan area |
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| ZHOU Jun-an,ZHOU Li-xia,LIN Yong-biao,DING Ming-mao,FU Sheng-lei,YI Wei-min.Temporal and spatial variation of nitrous oxide concentration in different soil depth under three plantations in Heshan area[J].Journal of Fujian College of Forestry,2005,25(3):264-268. |
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| Authors: | ZHOU Jun-an ZHOU Li-xia LIN Yong-biao DING Ming-mao FU Sheng-lei YI Wei-min |
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| Abstract: | The investigation on N_2O concentration in different soil depth under three plantations was carried out in Heshan station, the result showed that the spatial and temporal variation of N_2O concentration in different soil depth for all of the experimental plantations were obvious.N_2O concentration in defferent soil depth was in the order: 15 cm<30 cm<45 cm<60 cm soil depth for Acacia mangium plantation and 30 cm<15 cm<45 cm<60 cm soil depth for Schima superba and Pinus elliottii,P. massoniana plantation, N_2O concentration increased with increasing soil depth.The N_2O concentration in 15 cm , 30 cm and 45 cm soil depth for the three plantations were in turn: S. superba plantation
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| Keywords: | Heshan area plantations different soil depth N_2O |
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