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农学学报 ›› 2016, Vol. 6 ›› Issue (7): 30-33.doi: 10.11923/j.issn.2095-4050.cjas16010013

• 土壤肥料 资源环境 生态 • 上一篇    下一篇

不同土层深度的柠条锦鸡儿林土壤有机质分析

郭月峰   

  1. 内蒙古呼和浩特内蒙古农业大学生态环境学院
  • 收稿日期:2016-01-17 修回日期:2016-03-11 接受日期:2016-03-24 出版日期:2016-07-18 发布日期:2016-07-18
  • 通讯作者: 郭月峰 E-mail:guoyuefeng0525@126.com
  • 基金资助:
    国家自然科学基金“内蒙古农牧交错地带柠条锦鸡儿平茬对植物根系和土壤水分的影响机理研究”(31500584);内蒙古应用研究与开发计划项目“农林牧耦合生态系统固碳关键技术”(20110732);高等学校科学研究项目“柠条锦鸡儿水力参数变化对平茬的响应”(NJZZ16055);内蒙古自然科学基金项目“内蒙古砒砂岩区典型小流域植被建设的生态需水研究”(2016MS0407)。

Soil Organic Matter of Caragana microphylla Lam. Forest of Different Ages

  • Received:2016-01-17 Revised:2016-03-11 Accepted:2016-03-24 Online:2016-07-18 Published:2016-07-18

摘要: 研究柠条锦鸡儿(Caragana Microphylla Lam.)林地不同林龄及土层深度土壤有机质含量,为进一步深入研究北方农牧交错带土壤有机碳及地区植被建设提供依据。笔者通过野外调查和室内分析相结合的方法,对赤峰市敖汉旗风沙土区不同林龄柠条锦鸡儿(5、11、17、23、29 年)不同土层的土壤有机质作了分析。分析表明:相同林龄不同立地条件的土壤有机质含量随着土层深度的增加呈先增加后减少的趋势;不同立地条件相同林龄的土壤有机质含量大小为丘间低地>阴坡>阳坡;相同立地条件不同林龄的土壤有机质含量随林龄的增加而增加。

关键词: 四季开始日, 四季开始日, 季节长度, 时空变化

Abstract: The paper aims to study soil organic matter of different soil depths under different ages of Caragana microphylla Lam. forest, and provide a theoretical basis for further research on soil organic carbon and regional vegetation construction in transition zone between cropping area and nomadic area in north China. The authors combined the methods of field investigation and laboratory analysis, analyzed soil organic matter of different soil layers under different ages (5, 11, 17, 23 and 29 a) of Caragana microphylla Lam. forest in Aohan Banner, Chifeng sandy soil area. The results showed that soil organic matter of the same age forest under different site conditions first increased and then decreased with the increase of soil depth; soil organic matter under the same site condition of different forest ages followed the order of dune-lowland> shady-slope> sunny-slope; soil organic matter under the same site condition of different forest ages increased with the forest age.