干旱区生态环境知识资源中心(Arid): 四种粒径分级制度对土壤体积分形维数测定的影响

Arid

	四种粒径分级制度对土壤体积分形维数测定的影响
其他题名	Effects of Soil Particle Size Classification System on Calculating Volume-based Fractal Dimension
	高广磊 1; 丁国栋 1; 赵媛媛 1; 包岩峰 1; 于明含 1; 刘昀东 1; 周晓蕊 2
来源期刊	应用基础与工程科学学报
ISSN	1005-0930
出版年	2014
卷号	22 期号:6 页码:1060-1068
中文摘要	为揭示粒径分级对土壤体积分形维数测定的影响,采用激光衍射技术测定毛乌素沙地风沙土粒径组成,基于中国制、前苏联制、美国制和国际制4种不同粒径分级方法计算土壤体积分形维数.研究结果显示,(1)研究区土壤质地较粗,土壤颗粒组成以砂粒为主,占总体积的90%以上,而黏粒、粉粒含量相对较少;土壤体积分形维数大小排序为前苏联制(D_(SU))>中国制(D_(CHN))>国际制(D_(INT))> 美国制(D_(US));(2)D_(CHN)、D_(US)和D_(INT)与土壤粘粒、粉粒和砂粒含量线性回归拟合效果良好,且相关性极显著(P<0.01);D_(SU)与土壤粉粒和砂粒含量相关性显著(P<0. 05),但线性回归拟合效果较差;(3)D_(CHN)、D_(US)和D_(INT)之间呈极显著正相关关系(P<0.01),D_(SU)与D_(CHN)、D_(US)和D_(INT)相关性较差,线性回归方程可实现D_(CHN)、D_(US)和D_(INT)之间的转化.综合考虑土壤颗粒组成信息、数值差异和相关性,美国制土壤粒径分级方法是计算土壤体积分形维数的较优选择.
英文摘要	We constructed an aeolian soil database in the Mu Us Desert. Soil particle size distribution (PSD) was measured with a laser diffraction technique,and the volume-based fractal dimensions were calculated following the standards of Chinese (D_(CHN)),Soviet (D_(SU)),American (D_(US)),and International(D_(INT)) soil PSC systems.The results indicated that(1)The predominant soil particle size was distributed within the sand classification, which accounted for more than 90%of the total volume ; Clay and silt particle contents were much less prevalent. The order of volume-based fractal dimensions was as follow:D_(SU),D_(CHN),D_(INT), and D_(US). (2) Significant linear correlations occurred among D_(CHN),D_(US),D_(INT),and clay,silt and sand particle contents (P < 0. 01),respectively,with the exception of any significant correlations between D_(SU) and silt and sand particle contents (P < 0. 05),which showed a poor linear relationship. (3) There were significant positive correlation among DCHN, D_(INT) and D_(US) (P < 0. 01), where there were poor correlations between D_(SU) and other fractal dimensions. The linear regression analysis realized mutual transformation among DCHN, D_(US) and D_(INT).Taking into consideration soil PSD data, D values, and the observed correlations, we highly recommend that the American soil PSC system should be the optional system for calculating volume-based fractal dimensions of soil PSD.
中文关键词	土壤分形特征 ; 体积分形维数 ; 粒径分布 ; 粒径分级 ; 风沙土
英文关键词	soil fractal feature volume-based fractal dimension particle size distribution particle size classification aeolian soil
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5307885
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231973
作者单位	1.北京林业大学水土保持学院, 水土保持与荒漠化防治教育部重点实验室, 北京 100083, 中国; 2.环境保护部核与辐射安全中心, 北京 100086, 中国
推荐引用方式 GB/T 7714	高广磊,丁国栋,赵媛媛,等. 四种粒径分级制度对土壤体积分形维数测定的影响[J]. 北京林业大学,2014,22(6):1060-1068.
APA	高广磊.,丁国栋.,赵媛媛.,包岩峰.,于明含.,...&周晓蕊.(2014).四种粒径分级制度对土壤体积分形维数测定的影响.应用基础与工程科学学报,22(6),1060-1068.
MLA	高广磊,et al."四种粒径分级制度对土壤体积分形维数测定的影响".应用基础与工程科学学报 22.6(2014):1060-1068.