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| 庐山JL红土剖面的色度气候意义 | |
| 引用本文： | 朱丽东,周尚哲,李凤全,叶玮,王天阳,王佳羽.庐山JL红土剖面的色度气候意义[J].热带地理,2007,27(3):193-197,202. |
| 作者姓名： | 朱丽东 周尚哲 李凤全 叶玮 王天阳 王佳羽 |
| 作者单位： | 1. 浙江师范大学,旅游与资源管理学院,浙江,金华,321004;兰州大学,资源环境学院,兰州,730000 2. 华南师范大学,地理系,广州,510631 3. 浙江师范大学,旅游与资源管理学院,浙江,金华,321004 |
| 基金项目： | 浙江省自然科学基金;浙江省自然科学基金;浙江省教育厅资助项目 |
| 摘 要： | 庐山JL红土剖面的Munsell色度体系研究表明,红土色调、明度、彩度等特征值沿剖面呈有规律变化,随深度增加,红度加深、明度降低、彩度增高,总体呈现7次高低值相间的波动。红化率RR作为衡量红化程度的综合指标,随深度增加波动式递增,亦存在7次旋回,与土体中Fe2O3含量的变化趋势一致。该结论表明,庐山红土发育过程中存在热中见凉的气候波动,第四纪以来气候渐趋干凉。同时,RR曲线与C IA曲线变化趋势一致,RR高值对应于CIA高值,指示强成土风化时期,可作为反映成土环境变化的代用指标。 |
| 关 键 词： | 庐山地区 红土沉积 色度参数 气候意义 |
| 文章编号： | 1000-5221（2007）03-0193-05 |
| 修稿时间： | 2006-09-192006-11-09 |
Climatic Implication of the Chroma of JL Red Earth Section in the Lushan Mountain |
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| ZHU Li-dong,ZHOU Shang-zhe,LI Feng-quan,YE Wei,WANG Tian-yang,WANG Jia-yu.Climatic Implication of the Chroma of JL Red Earth Section in the Lushan Mountain[J].Tropical Geography,2007,27(3):193-197,202. | |
| Authors: | ZHU Li-dong ZHOU Shang-zhe LI Feng-quan YE Wei WANG Tian-yang WANG Jia-yu |
| Institution: | 1. Department of Tourism and Resource Management, Zhejiang Normal University, Jinhua 321004, China ; 2. College of Resource and Environment, Lanzhou University, Lanzhou 730000, China; 3. Geography department, Southchina Normal University, Guangzhou 510631, China |
| Abstract: | By new standard soil color charts,Munsell soil color parameters of JL red earth section in Lushan area are measured.The results show that: the hue,the bright degree and the chroma of red earth take on well-regulated variations;with the increase of the depth,the redness and chroma become denser,but brightness decreases,and soil color has 7 fluctuations along the JL section.Redness rating,a synthetical index weighing redness degree of soil based on soil color,increases with fluctuation as the depth increases,and also shows 7 oscillations,this trend is in accord with the change of Fe2O3 content in the soil.Furthermore,the trend of redness rating curve with depth is similar to that of CIA curve,the high-values of redness rating are corresponding to that of CIA and clay grain-size content.Obviously,the development of red earth in Lushan area underwent climatic fluctuations with wet-warm and dry-cool.Climate has tended to be dry-cool since Quaternary.Redness rating and soil color could indicate evolution of the pedogenesis and the climatic characteristics. |
| Keywords: | Lushan area Red earth sediments Soil color parameters Paleo-climate |
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