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| 子午岭次生林恢复演替中土壤微生物量的变化动态 | |
| 引用本文： | 贾国梅,王春燕,曹靖,王刚.子午岭次生林恢复演替中土壤微生物量的变化动态[J].兰州大学学报(自然科学版),2007,43(1):80-83. |
| 作者姓名： | 贾国梅 王春燕 曹靖 王刚 |
| 作者单位： | 1. 三峡大学化学与生命科学学院,湖北 宜昌,443002;兰州大学干旱与草地生态教育部重点实验室,甘肃 兰州,730000 2. 兰州大学学报编辑部,甘肃 兰州,730000 3. 兰州大学干旱与草地生态教育部重点实验室,甘肃 兰州,730000 |
| 基金项目： | 国家重点基础研究发展计划(973计划) |
| 摘 要： | 研究子午岭林区次生林演替过程中微生物量和w(微生物量碳)/w(有机碳)的动态.结果表明:随着次生林演替,微生物量变化趋势不明显,土壤有机碳的变化趋势与微生物量的变化趋势相似;微生物量与有机碳高度相关(P《0.01),说明子午岭次生林演替,微生物量与土壤肥力密切相关.次生林演替时间与w(微生物量碳)/w(有机碳)具有显著的相关性(P《0.01),而且w(微生物量碳)/w(有机碳)随着演替时间的延长而提高,由此认为:w(微生物量碳)/w(有机碳)可成为黄土高原次生演替土壤有机碳变化的敏感指标. |
| 关 键 词： | 微生物量 土壤营养 微生物墒 次生林演替 |
| 文章编号： | 0455-2059（2007）01-0080-04 |
| 修稿时间： | 2005-06-212006-01-18 |
Microbial biomass in soil during secondary forest succession in Ziwuling, Northwest China |
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| JIA Guo-mei,WANG Chun-yan,CAO Jing,WANG Gang.Microbial biomass in soil during secondary forest succession in Ziwuling, Northwest China[J].Journal of Lanzhou University(Natural Science),2007,43(1):80-83. | |
| Authors: | JIA Guo-mei WANG Chun-yan CAO Jing WANG Gang |
| Abstract: | Microbial biomass, organic C and microbial quotient were determined during the secondary forest succession in north Ziwuling region in the middle of Loess Plateau in China. The result indicated that microbial biomass C showed no changing trend with the age second growth; a similar effect was observed in organic C. However, soil microbial biomass is highly correlated with the organic matter content of soil (P <0.01), suggesting that there was a close relationship between soil fertility and microbial biomass. Microbial quotient showed a significant correlation with succession time, i.e. microbial quotient increased gradually during succession, thus microbial quotient appears to be a sensitive index of the change in organic matter quality of soil during secondary forest succession in north Ziwuling region. |
| Keywords: | microbial biomass C soil organic C microbial quotient secondary forest succession |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |