| 草地开发与保护过程中土壤颗粒分形特征 |
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| 引用本文： | 徐冰,赵淑银,郭克贞,佟长福.草地开发与保护过程中土壤颗粒分形特征[J].草业科学,2009,26(7):143-146. |
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| 作者姓名： | 徐冰 赵淑银 郭克贞 佟长福 |
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| 作者单位： | 中国水科院牧区水利科学研究所,内蒙古,呼和浩特,010010;内蒙古农业大学,内蒙古,呼和浩特,010018;中国水科院牧区水利科学研究所,内蒙古,呼和浩特,010010 |
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| 基金项目： | 中国水科院科研专项基金[mksx(1)-07-05] |
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| 摘 要： | 为加强草地土壤修复状况的定量化表征，以毛乌素沙区天然草地与人工灌溉饲草料地为研究对象，对开发与保护过程中土壤理化性状变化及其与颗粒分形维数的关系进行了研究，结果表明，不同土壤分形维数为2.352.54；人工草地沙粒含量、分形维数大于天然草地，有机质含量小于天然草地。研究认为，土壤颗粒含量分形维数与粘粉粒、有机质含量呈正相关关系，与沙粒含量呈负相关关系，土壤颗粒分形维数能够定量表征土壤颗粒性状变化，可作为评价沙、退化草地土壤退化程度的定量综合指标。
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| 关 键 词： | 开发 保护 天然草地 人工灌溉草地 土壤颗粒 分形维数 |
Fractal dimension characteristic of soil particles during the grassland reclamation and protection |
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| XU Bing,ZHAO Shu-yin,GUO Ke-zhen,TONG Chang-fu.Fractal dimension characteristic of soil particles during the grassland reclamation and protection[J].Pratacultural Science,2009,26(7):143-146. |
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| Authors: | XU Bing ZHAO Shu-yin GUO Ke-zhen TONG Chang-fu |
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| Institution: | 1.Institute of Water Resources for Pastoral Area;China Institute of Water Resources and Hydropower Research;Hohhot 010010;China;2.Inner Mongolia Agricultural University;Hohhot 010018;China |
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| Abstract: | In order to enhance the quantificational characteristic on the recovery condition of deteriorated grassland,the variability of soil physicochemical property and its relationships with fractal dimension of soil particle were studied in native grassland and artificial irrigation pasture in Maowusu desert.It was showed that the values of fractal dimension was 2.35 to 2.54, the contents of sand and the fractal dimension in artificial irrigation pasture were larger than those in native grassland,and the contents... |
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| Keywords: | reclamation protection native grassland artificial irrigation grassland soil particle the fractal dimension |
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