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| 利用土壤的序列数字图像技术研究孔隙小尺度特征 | |
| 引用本文： | 李德成,Velde B,张桃林.利用土壤的序列数字图像技术研究孔隙小尺度特征[J].土壤学报,2003,40(4):524-528. |
| 作者姓名： | 李德成 Velde B 张桃林 |
| 作者单位： | 1. 中国科学院南京土壤研究所,南京,210008;Laboratoire de Géologie, CNRS 4385, ENS, 75231 Paris,France 2. Laboratoire de Géologie, CNRS 4385, ENS, 75231 Paris,France 3. 中国科学院南京土壤研究所,南京,210008 |
| 基金项目： | 国家自然科学基金(No. 49901008)和第一作者的法国政府博士奖学金(19991288)资助项目;教育部留学回国人员科研启动基金(2002-247)资助项目 |
| 摘 要： | 将土壤样品用混有荧光有机染料的树脂浸渍后 ,以 1mm间距连续研磨 ,经过一定的图像转换处理 ,最后以连续数字图像方式对图像孔隙的小尺度特征进行分析。对一种美国耕作黑土和一种法国耕作黄壤的比较研究表明 ,两类土壤在图像孔隙面积、图像孔隙面积变异性、图像孔隙孔径、孔隙连接度、孔隙重叠度以及孔隙流通性等方面均有所差异 ,这与两类土壤不同的有机质含量有关。 |
| 关 键 词： | 序列数字图像 小尺度 孔隙 土壤 |
| 收稿时间： | 2001/11/20 0:00:00 |
| 修稿时间： | 2001年11月20 |
STUDY ON SOIL PORE CHARACTERISTICS ON SMALL SCALE BY USING TECHNIQUES OF SERIAL DIGITAL IMAGES |
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| Li De-cheng,Velde B and Zhang Tao-lin.STUDY ON SOIL PORE CHARACTERISTICS ON SMALL SCALE BY USING TECHNIQUES OF SERIAL DIGITAL IMAGES[J].Acta Pedologica Sinica,2003,40(4):524-528. | |
| Authors: | Li De-cheng Velde B and Zhang Tao-lin |
| Institution: | Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;Laboratoire de Géologie, CNRS 4385, ENS, 75231 Paris, France;Laboratoire de Géologie, CNRS 4385, ENS, 75231 Paris, France;Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China |
| Abstract: | This paper mainly introduced the technique of serial digital images for analyzin g pore characteristics on a small scale. Soil samples are impregnated by resins containing fluorescent dye, and grinded consecutively at an interval of 1 mm in o rder to obtain the serial images of pore space. By using this technique, we ana l yzed pore characteristics on a small scale from a cultivated soil from USA and a cultivated soil from France, and the results showed that there were differences in image pore area, image pore size, image pore variability, pore connectivity, pore overlapped extent and pore circulating ability in those two soils, which w ere considered to be related with their different organic material contents. |
| Keywords: | Serial digital image Small scale Pore Soil |
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