[1]何梅菊a,b,吕 镔a,等.武夷山脉土壤磁学特征及环境意义[J].山地学报,2019,(05):649-661.[doi:10.16089/j.cnki.1008-2786.000456]
　HE Meijua,b,LYU Bina,et al.Magnetism Characteristics of Soils in the Wuyi Mountains and Their Environmental Significances[J].Mountain Research,2019,(05):649-661.[doi:10.16089/j.cnki.1008-2786.000456]
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武夷山脉土壤磁学特征及环境意义()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2019年05期
页码:
649-661
栏目:
山地环境
出版日期:
2019-09-30

文章信息/Info

Title:
Magnetism Characteristics of Soils in the Wuyi Mountains and Their Environmental Significances
文章编号:
1008-2786-(2019)5-649-13
作者:
何梅菊a; b; 吕 镔a; b; c*; 王姗姗d; 郑兴芬b; c ; 陈梓炫b; c
福建师范大学 a.地理学国家级实验教学示范中心; b.地理科学学院; c.湿润亚热带山地生态国家重点实验室培育基地; d.物理与能源学院,福州350007
Author(s):
HE Meijua;  b; LYU Bina; b; c*; WANG Shanshand;  ZHENG Xingfenb;  c; CHEN Zixuanb;  c
a. National Demonstration Center for Experimental Geography Education; b. School of Geographical Sciences; c. State Key Laboratory for Subtropical Mountain Ecology of the Ministry of Science and Technology and Fujian Province; d. College of Physics and Energy, Fujian Normal University, Fuzhou 350007, China
关键词:
山地土壤;  环境磁学;  磁性矿物;  色度;  武夷山脉
Keywords:
mountainous soils;  environmental magnetism;  magnetic mineral;  chromaticity;  the Wuyi Mountains
分类号:
P318~A
DOI:
10.16089/j.cnki.1008-2786.000456
摘要:
中亚热带的武夷山脉山地土壤具有典型的垂直地带性,对该地的研究有助于弥补当前亚热带地区以及垂直地带性土壤磁学研究的不足。本文以武夷山脉北段为研究区,在不同海拔采集三个土壤剖面样品,进行系统的环境磁学测量,并结合色度指标,探讨武夷山脉不同海拔山地土壤磁学特征差异和环境意义。研究结果表明:(1)三个剖面所含磁性种类大体相同,主要为强磁性的磁铁矿和磁赤铁矿、弱磁性的赤铁矿和针铁矿及顺磁性矿物。不同剖面、同一剖面的不同层位,磁性矿物含量比例不同。(2)随着海拔升高,剖面磁颗粒变粗,这是由于不同气候条件下磁性矿物转化途径不同。(3)降水和气温的配置控制赤铁矿和针铁矿的含量及相对比例,湿冷条件下,针铁矿相对比例更高而使土体呈黄色。(4)亚铁磁性矿物对气候的响应比反铁磁性矿物更为复杂,局部小环境对磁性矿物也产生了较大的影响。色度指标b*/ a*(黄度/红度)是具有明确意义的气候代用指标。
Abstract:
The soils in the subtropical Wuyishan Mountains have typical vertical zonality. The associated research would be helpful to understand the relationship between soil magnetism eharacteristics and environment. In this study, the northern section of the Wuyi Mountains was targeted as research area. The soil profiles(69 representative samples)at three sites with different altitudes in Pucheng county, Fujian province, China, were sampled separately. The magnetic parameters and chromaticity of all samples were measured at room temperature to explore the difference of soil magnetic characteristics and environmental significance in different elevations of the Wuyishan Mountains. By the study, it found that:(1)the magnetic types in the three soil sections were basically the same, mainly consisted of ferromagnetic magnetite and maghemite, weakly magnetic hematite and goethite, as well as paramagnetic minerals. The proportion of magnetic mineral content was varied at different soil profiles, and varied in different horizons of the same section;(2)With increasing altitudes, magnetic particles became coarser, which could be due to different transformation paths of magnetic minerals under different climatic conditions;(3)Hydrothermal configuration controlled the content and relative proportion of hematite and goethite in soil profiles. Under wet and cold conditions, the relative proportion of goethite was higher, making the soil yellow;(4)The response of ferrimagnetic minerals to climate was more complicated than that of antiferromagnetic minerals, and local small environment also had great influence on magnetic minerals. The chromaticity index b*/a* was a definite representative indicator for climate identification.

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备注/Memo

备注/Memo:
收稿日期(Received date):2019-04-19; 改回日期(Accepted date):2019-07-07
基金项目(Foundation item):国家自然科学基金项目(41877435); 福建省大学生创新创业训练计划(201810394069); 福建师范大学创新团队项目(IRTL1705)。[National Natural Science Foundation of China(41877435); College Students' Innovation and Entrepreneurship Training Program of Fujian Province(201810394069); Innovation Research Team Fund of Fujian Normal University(IRTL1705)]
作者简介(Biography):何梅菊(1997-),女,贵州岑巩人,本科生,地理科学专业。 [HE Meiju(1997-), female, born in Cengong, Guizhou province, B.A. candidate, major in geography science] E-mail: 1282780366@qq.com
更新日期/Last Update: 2019-09-30