典型草原区退耕及封育草地土壤水分物理性质研究
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

“十-五”国家科技支撑重大项目(2006BCA01A07;2006BAD0908);黄土高原土壤侵蚀与旱地农业国家重点实验室基金项目(10501-152)


Soil Moisture Physical Properties of Farming-withdrawn Land and Enclosed Grassland in a Typical Grassland
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    对典型草原云雾山保护区退耕6 a,11 a(放牧8 a)和16 a的3个退耕地和4个封育草地(百里香群落、铁杆蒿群落、大针茅群落和长芒草群落)对照坡耕地表层土壤的水分特征曲线数学模型、持水参数和比水容量进行了测定。结果表明,封育草地的持水和供水性能要大于退耕地和坡耕地,放牧对退耕11 a的持水和供水性能有较大影响。云雾山自然保护区坡地退耕和草地封育后,样地土壤的持水能力大小顺序为封育长芒草群落>大针茅群落>百里香群落>铁杆蒿群落>退耕16 a>退耕6 a>坡耕地>退耕11 a(放牧8 a)。供水能力大小顺序为封育长芒草群落>百里香群落>铁杆蒿群落>大针茅群落>退耕16 a>退耕6 a>退耕11 a(放牧8 a)>坡耕地。这说明土壤持水和供水性能随着退耕年限的增加和封育草地的正向植被演替均逐渐增强的趋势。坡地退耕和草地封育能够通过改善土壤的水分物理性质提高土壤的蓄水持水性能和抗侵蚀能力。

    Abstract:

    Abstract: Soil water characteristic model, holding water parameter, and specific water capacit y on three farming-withdrawn lands(6, 11, and 16 years) and four enclosed grasslands(Thymus mongolicus, Artemisia gmelini, Stipa gra is and Sti bungeana communities) are studied by cont rasting wit h slope plantation in a typical grassland on the Loess Plateau.Results show that soil holding and supplying water capabilities in enclosed grassla nds are better than farming-wit hdrawn lands and the cultivated sloping land, but grazing on the 11 year grassland has a significant eff ect on the capacities.The t rea tments, in terms of soil holding water capabili t y, rank in the descendant order of Stiρa bungeana, Stipa grand is, Thymus mongolicus, Artemisia gmeli 巾,16 yea r withdrawing, 6 year withdrawing, cultivated sloping land, and 11 year withd rawing(grazing for 8 years) and in terms of supplying water capa bility, Stiρa bungeana, Thymus mongolicus, Artemisia gmel in, Stipa grand is, 16 year withdrawing, 6 year withdrawing, and 11 yea r withdrawing(grazing for 8 years), and cultivated sloping land.Farming-wit hdrawn land and enclosed grassland can improve soil holding and supplying water capability by promoting soil water physical properties.

    参考文献
    相似文献
    引证文献
引用本文

赵勇钢,赵世伟,曹丽花,梁向锋.典型草原区退耕及封育草地土壤水分物理性质研究[J].水土保持通报,2007,(6):41-115

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2007-05-16
  • 最后修改日期:2007-08-21
  • 录用日期:
  • 在线发布日期: 2014-12-16
  • 出版日期: