| 红松阔叶混交林林隙土壤养分的空间异质性 |
| |
| 引用本文： | 刘少冲,段文标.红松阔叶混交林林隙土壤养分的空间异质性[J].水土保持学报,2011,25(3):142-146. |
| |
| 作者姓名： | 刘少冲 段文标 |
| |
| 作者单位： | 东北林业大学林学院,哈尔滨,150040 |
| |
| 基金项目： | 国家自然科学基金(30771708); 教育部留学回国人员科研启动基金(2010-1561) |
| |
| 摘 要： | 采用经典统计学和地统计学方法分析了小兴安岭阔叶红松混交林林隙表层土壤(0-10cm)养分空间变异结构及其分布格局。结果表明:土壤pH值(CV=5.28%)和速效钾(CV=7.33%),呈弱变异性,其他土壤化学指标均表现为中等程度变异。土壤pH值、有机质、全氮、全磷、铵态氮、硝态氮、有效磷和速效钾变异函数曲线的理论模型符合球状模型。土壤养分的空间变异主要是由结构性因素引起的,且空间自相关程度均属中等(空间结构比均在25%以上)。克里格法插值估计和各养分属性的等值线图表明,林隙表层土壤养分具有块状或连续分布的特点,不同的指标表现出不同的分布规律。
|
| 关 键 词： | 红松阔叶混交林 林隙 土壤养分 空间异质性 |
Spatial Heterogeneity of Soil Nutrition in the Mixed Broad-Leaved Korean Pine Forest Gap |
| |
| LIU Shao-chong,DUAN Wen-biao.Spatial Heterogeneity of Soil Nutrition in the Mixed Broad-Leaved Korean Pine Forest Gap[J].Journal of Soil and Water Conservation,2011,25(3):142-146. |
| |
| Authors: | LIU Shao-chong DUAN Wen-biao |
| |
| Institution: | LIU Shao-chong,DUAN Wen-biao(College of Forestry,Northeast Forestry University,Harbin 150040) |
| |
| Abstract: | The spatial heterogeneity and distribution pattern in surface soil layer(0-10 cm) in mixed broad-leaved koren pine forest gap in Xiao Xing'an Mountains were analysed by the methods of the traditional statistics and geo-statistics.The results showed that:pH(CV=5.28%) and available potassium(CV=7.33%) showed weaker variability,other chemical indices exhibited moderate variability.The theoretical models of variation function curve of soil pH,organic matter,total nitrogen,total phosphorous,ammonium nitrogen,nit... |
| |
| Keywords: | mixed broad-leaved korean pine forest forest gap soil nutrient spatial heterogeneity |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《水土保持学报》浏览原始摘要信息 |
| 点击此处可从《水土保持学报》下载免费的PDF全文 |
|
