河南农业大学学报2017，Vol.51Issue(5)：634-639,6.
不同林龄栓皮栎林下土壤颗粒分形及养分特征研究
Study on soil fractal and nutrient characteristics under forests of Quercus variabilis Bl.of different ages
摘要
Abstract
In order to describe the fractal characteristics of soil particle-size under the influence of Quercus variabilis which is in different age of growth in the semi-arid area of Taihang Mountain,this paper,using the principle of soil particle distribution and fractal theory,through field investigation and laboratory analysis,studied the fractal characteristics and nutrient characteristics of soil particle-size under four different ages of Quercus variabilis in Taihang Mountain.The results showed that,1) The distribution of soil particle-size in different ages was significantly different,and the content of clay granules increased with the increase of age,and the content of sand grains decreased with the increase of age;2) The fractal dimension ranged from 1.35 ～ 2.61,and the mean value was 2.14.The fractal dimension was positively correlated with the soil clay content and negatively correlated with the sand content;3) The soil physical and chemical properties were also significantly different.The content of available phosphorus and organic matter of 40-year-old Quercus was significantly higher than that of the 10-year-old,and the content of total nitrogen was not significant.The contents of total N,available phosphorus and organic matter were all positively correlated with the fractal dimension D.关键词
土壤粒径/分形维数/养分特征/不同林龄Key words
soil particle-size/fractal dimension/nutrient characteristics/different age分类
农业科技引用本文复制引用
祝忆伟,张志铭,赵勇,赵河,袁晓柯..不同林龄栓皮栎林下土壤颗粒分形及养分特征研究[J].河南农业大学学报,2017,51(5):634-639,6.基金项目
国家自然科学基金项目(31270750) （31270750）
“十二五”国家科技支撑计划项目(2011BAD38 B00) （2011BAD38 B00）
