| 我国温带荒漠生物土壤结皮孔隙结构分布特征 |
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| 引用本文： | 王新平,李新荣,潘颜霞,王正宁,全桂静,G.Mele,A.Tedeschi.我国温带荒漠生物土壤结皮孔隙结构分布特征[J].中国沙漠,2011,31(1):58-62. |
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| 作者姓名： | 王新平 李新荣 潘颜霞 王正宁 全桂静 G.Mele A.Tedeschi |
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| 作者单位： | 1. 中国科学院寒区旱区环境与工程研究所沙坡头沙漠试验研究站,甘肃兰州,730000
2. Istituto per i Sistemi Agricoli e Forestali del Mediterraneo-CNR, Via Patacca 85,80056 Ercolano Naples,Italy |
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| 基金项目： | 中国科学院“西部之光”人才培养计划“联合学者”项目; 国家自然科学基金项目(40871051)共同资助 |
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| 摘 要： | 对原状生物土壤结皮孔隙结构、孔隙率及其垂直连通性进行室内微观扫描与计算机断层摄影成像分析.结果表明,生物土壤结皮团聚体特征明显,其孔隙率的增大主要是由大孔隙数量的增加而形成,同时,土壤孔隙连通性也随大孔隙数量的增加而增大,生物土壤结皮的发育导致表层土壤具有明显的极其复杂的土壤结构演化特征.
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| 关 键 词： | 生物土壤结皮 孔隙率 荒漠生态系统 |
| 收稿时间： | 2009-7-27 |
| 修稿时间： | 2009-9-17 |
Pore Structure of Lichen Crusts in the Tengger Desert, China |
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| WANG Xin-ping,LI Xin-rong,PAN Yan-xia,WANG Zheng-ning,QUAN Gui-jing,G.Mele,A.Tedeschi.Pore Structure of Lichen Crusts in the Tengger Desert, China[J].Journal of Desert Research,2011,31(1):58-62. |
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| Authors: | WANG Xin-ping LI Xin-rong PAN Yan-xia WANG Zheng-ning QUAN Gui-jing GMele ATedeschi |
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| Institution: | WANG Xin-ping1,LI Xin-rong1,PAN Yan-xia1,WANG Zheng-ning1,QUAN Gui-jing1,G.Mele2,A.Tedeschi2(1.Shapotou Desert Research and Experiment Station,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,China,2.Istituto per i Sistemi Agricoli e Forestali del Mediterraneo-CNR,Via Patacca 85,80056 Ercolano Naples,Italy) |
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| Abstract: | X-ray micro-CT imaging coupled with 3D image analysis based on specific procedures for porous media have been applied to the analysis of the porosity structure of the lichen crusts at the Shapotou Desert Research and Experiment Station in the Tengger Desert,northern China.The results indicated that it will provide a very accurate quantification of the internal structure of lichen crusts due to stabilization of sand dune of different age.The general trend with the age of the lichen crusts is a reduction in v... |
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| Keywords: | biological soil crusts porosity desert ecosystem |
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