干旱区生态环境知识资源中心(Arid): 农业非点源污染对土壤颗粒分形特征的影响

Arid

	农业非点源污染对土壤颗粒分形特征的影响
其他题名	Influence of Agricultural Non-point Source Pollution on Fractal Dimensions Feature of Soil Particles
	林绍霞 1; 张清海 1; 林昌虎 2; 何腾兵 3
来源期刊	贵州农业科学
ISSN	1001-3601
出版年	2010
卷号	38 期号:12 页码:126-130
中文摘要	为探究农业非点源污染对土壤性状的影响,研究了不同利用方式的土壤颗粒分形维数特征.结果表明:土壤颗粒分形维数为2.891~2.949,与土壤中粘粒含量呈极显著正相关,土壤中有机质,全氮含量随分形维数的增大而增加.不同土地利用方式的土壤分形维数特征表现为茶园>旱地>水田>菜地,单季种植土壤分形维数大于两季种植土壤.随着与居民点距离的增大,土壤分形维数有减小的趋势,土壤分形维数越大,土壤粘粒含量越多,对养分的吸附能力越强.土壤颗粒分形维数特征可以作为反映土壤受农业非点源污染过程中趋向沙化发展的一个重要指标
英文摘要	The fractal dimension feature of soil particles under different utilization patterns was analyzed to study the effect of agricultural non-point source pollution on soil character. The results showed that the fractal dimension of soil particles was between 2.891 and 2.949, there was a significant positive correlation between soil fractal dimension and soil clay content, and the content of organic matter and total nitrogen in soil increased with the increase of the fractal dimension. The performance of soil fractal dimension feature under different land utilization patterns was tea garden>upland land>paddy field>vegetable field and the soil fractal dimension of the single cropping model was higher than that of the double cropping model. The soil fractal dimension decreased with distance increase from settlements. The greater the soil fractal dimension is, the more the soil clay content has, the stronger nutrient adsorption capacity the soil has. The fractal dimension of the soil particles may be an important index reflecting the development trend of soil desertification in the process of agricultural non-point source pollution
中文关键词	农业非点源污染 ; 土壤颗粒 ; 分形维数
英文关键词	agricultural non-point source pollution soil particle fractal dimension
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:4098026
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225269
作者单位	1.贵州省理化测试分析研究中心, 贵阳, 贵州 550001, 中国; 2.贵州科学院, 贵阳, 贵州 550001, 中国; 3.贵州大学, 贵阳, 贵州 550025, 中国
推荐引用方式 GB/T 7714	林绍霞,张清海,林昌虎,等. 农业非点源污染对土壤颗粒分形特征的影响[J],2010,38(12):126-130.
APA	林绍霞,张清海,林昌虎,&何腾兵.(2010).农业非点源污染对土壤颗粒分形特征的影响.贵州农业科学,38(12),126-130.
MLA	林绍霞,et al."农业非点源污染对土壤颗粒分形特征的影响".贵州农业科学 38.12(2010):126-130.