| 青海沙珠玉高寒区风沙土基本性状的研究 |
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| 引用本文： | 张登山,冯立孝,雷 梅.青海沙珠玉高寒区风沙土基本性状的研究[J].西北农林科技大学学报(社会科学版),1998,26(3):90-93. |
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| 作者姓名： | 张登山 冯立孝 雷 梅 |
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| 作者单位： | 青海省林业科学研究所，西北农业大学资源与环境科学系 |
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| 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３．５５１ｇ·ｋｇ－１，全氮、磷和钾含量分别低于０．２２５，０．９１７和１８．２３６ｇ·ｋｇ－１，阳离子交换量低于２．６３ｍｏｌ·ｋｇ－１，全盐量和碳酸钙含量分别在０．５０７和６３．０７ｇ·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。
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| 关 键 词： | 风沙土 理化特性 青海省 沙珠玉高寒区 |
Physical and Chemical Proporties of Blown Sand Soil in Shazuyu Altocryio Area in Qinghai Province |
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| Institution: | Zhang Dengshan1 Feng Lixiao2 Lei Mei2 Chen Laishen1(1 Qinghai Forestry Research Institute,Xining 810016)(2 Northwestern Agricaltural University,Yangling,Shauxi 712100) |
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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. |
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| Keywords: | blown sand soil physical and chemical properties Qinghai Shazuyu altocryic area |
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