| 摘要: |
| 对青海省沙珠玉高寒区的流动风沙土、半固定风沙土、固定风沙土和地带性土壤淡粟钙土等8个典型剖面进行研究,结果发现:该区风沙土的基本性状,其砂粒含量和粘粒含量分别在80%以上和14%以下,有质机含量低于3. 551 g·kg-1,全氮、磷和钾含量分别低于0. 225, 0. 917和18. 236 g·kg-1,阳离子交换量低于2. 63 mol·kg-1,全盐量和碳酸钙含量分别在0. 507和63. 07 g·kg-1以下。随着风沙土由流动向固定方向发展,理化特性显著改善,肥力不断提高。 |
| 关键词: 风沙土，理化特性，青海省，沙珠玉高寒区 |
| DOI： |
| 分类号:S151.9 |
| 基金项目: |
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| Physical and Chemical Proporties of Blown Sand Soil in Shazuyu Altocryio Area in Qinghai Province |
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| Abstract: |
| Eight soil profiles from moving blown sand soil, semifixed blown sand
soil, fixed blown sand soil and light chestnut soil are studied.The results show that the
sand holding capacity is more than 80% and clay content is less than 14%, organic matter holding capacity is lower than 3. 551 g·kg-1,N,P and K contents of blown sand soil
are less than 0. 225, 0. 917 and 18. 236 g·kg-1,CaCO3 and salt contents are lower than
0. 507 g·kg-1 and 63. 07 g·kg-1, CEC is lower than 2. 63 mol·kg-1 respectively.
These properties and the fertility of the blown sand soils have been improved evidently
with its moving in fixed direction. |
| Key words: blown sand soil,physical and chemical properties,Qinghai,Shazuyu altocryic area, |
