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林业资源管理 ›› 2008, Vol. 0 ›› Issue (3): 72-76.doi: 10.13466/j.cnki.lyzygl.2008.03.010

• 科学技术 • 上一篇    下一篇

高寒山区退耕还林不同年限土壤理化性质研究——以青海省大通县为例

马志林, 周心澄, 史常青   

  1. 北京林业大学水土保持学院 水土保持与荒漠化防治教育部重点实验室,北京 100083
  • 收稿日期:2008-03-10 修回日期:2008-03-26 出版日期:2008-06-28 发布日期:2020-11-30
  • 作者简介:马志林(1964-),男,河南南阳人,高级工程师,博士,从事工程绿化和水土保持研究。Email:mzlc158@163.com
  • 基金资助:
    “十五”国家科技攻关项目“退耕还林还草工程区水土保持型植被建设技术研究与示范”(2001BA 510B01)

Improvement of Soil Physical and Chemical Properties after “Conversion of Farmland to Forest” in Alpine Areas——Take Datong County of Qinghai Province as an Example<

MA Zhilin, ZHOU Xincheng, SHI Changqing   

  1. College of Soil and Water Conservation,B FU, Key Laboratory of Soil and Water Conservation and Desertification Combating of the Ministry of Education,Beijing 100083, China
  • Received:2008-03-10 Revised:2008-03-26 Online:2008-06-28 Published:2020-11-30

摘要: 分析了不同退耕年限群落类型土壤理化性质的变化规律。结果表明,退耕还林对土壤各种理化性状影响较大,土壤总孔隙度、毛管孔隙度、最大持水量、毛管持水量和土壤有机质、全氮、速效钾、CEC含量均表现为天然林地>退耕地>耕地,尤以表层表现明显,且随着退耕时间的延长,土壤理化性质得到明显改善。

关键词: 群落类型, 土壤理化性质, 退耕还林, 高寒山区

Abstract: Change rule of soil physical and chemical properties after“Conversion of Farmland to Forest” in alpine areas is analysed in this paper. The result shows that various physical and chemical property of soil is influenced clearly by “Conversion of Farmland to Forest”, and the natural woodland is better than converted farmland and farmland for total soil porosities, capillary porosities, maximum water holding capacity, capillary moisture capacity and soil organic matter,total nitrogen,readily available potassium,CEC content,especialy in the top layer of soil,and soil chemical and physical properties are improved obviously with the time length of the converted land.

Key words: different plant communities, physical and chemical property of soil, “Conversion of Farmland to Forest”, alpine areas

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