[1]刘刚,许文年,蔡崇法,等.陕西洛川全新世黑垆土理化特征年龄函数的构建[J].水土保持研究,2012,19(03):24-29.
　LIU Gang,XU Wen-nian,CAI Chong-fa,et al.Construction of Heilu Soil Chronofunction in the Holocene in Luochuan, Shaanxi Province[J].Research of Soil and Water Conservation,2012,19(03):24-29.
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陕西洛川全新世黑垆土理化特征年龄函数的构建

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 19 期数: 2012年03期 页码: 24-29 栏目: 出版日期: 2012-06-20
Title:
Construction of Heilu Soil Chronofunction in the Holocene in Luochuan, Shaanxi Province
作者:
刘刚1,2,3, 许文年1, 蔡崇法3, 刘普灵2, 杨明义2, 张琼3
1. 三峡大学 三峡库区地质灾害教育部重点实验室, 湖北 宜昌 443002;
2. 中国科学院 水利部 水土保持研究所 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100;
3. 华中农业大学 农业部长江中下游耕地保育重点实验室, 武汉 430070
Author(s):
LIU Gang1,2,3, XU Wen-nian1, CAI Chong-fa3, LIU Pu-ling2, YANG Ming-yi2, ZHANG Qiong3
1. Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, Ministry of Education, Three Gorges University, Yichang, Hubei 443002, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China;
关键词:
14C年龄; 函数; 土壤属性; 元素迁移; 土壤发育
Keywords:
14C age; function; soil properties; element migration; soil development
分类号:
P534.63+2
文献标志码:
A
摘要:
构建土壤理化特征年龄函数是定量认识土壤发育过程的重要途径，也是建立土壤发育模型的基础。本研究通过对陕西洛川全新世黑垆土剖面土壤理化特征及土壤14C年龄进行研究，利用线性函数、对数函数和三阶多项式对其进行拟合，从而构建土壤年龄函数。结果表明：利用三阶多项式对土壤黏粒（<0.002 mm）、粉粒（0.002～0.02 mm）、砂粒（0.02～2 mm）与土壤年龄拟合效果最好，其变化趋势表明了黑垆土层的存在；而对数函数的拟合结果较好地反映了土壤有机碳随土壤年龄逐渐减少和pH随土壤年龄逐渐增大的过程；土壤CaCO3含量、Mn/Zr，Fe/Zr，K/Zr，Mg/Zr，Ca/Zr，P/Zr，Na/Zr随土壤年龄变化规律与三阶多项式拟合结果最为相符，其结果较好地反映了CaCO3与各种土壤元素在土壤中的迁移过程。
Abstract:
Soil chronofunction is an important way to understand soil developent processes quantificationally, and the foundation for establishment of soil genesis model. To establish soil chronofunction, soil properties and 14C ages in the Holocene of Heilu soil profile in Luochuan, Shaanxi Province, were studied. Linear, logarithmic, and three order polynomial functions were used to fit the relationships between soil properties and soil ages. The results indicated that three order polynomial function was the best to fit the relationships between clay (<0.002 mm), silt (0.002～0.02 mm), sand (0.02～2 mm) and soil ages, and the trend line showed the existence of Heilu soil in the profile. The logarithmic function indicated the variation of soil organic carbon and pH with time perferably. The variation of CaCO3 content, Mn/Zr, Fe/Zr, K/Zr, Mg/Zr, Ca/Zr, P/Zr, and Na/Zr with soil ages could be described best by use of three order polynomial functions, and the trend line showed the migration of CaCO3 and soil elements.

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备注/Memo

收稿日期:2011-4-27;改回日期:2012-2-15。
基金项目:湖北省教育厅自然科学研究项目（Q20111207，XD20100595）；黄土高原土壤侵蚀与旱地农业国家重点实验室基金（10501-1211）；中国博士后科学基金（20110491162）；三峡大学基金（KJ2009B033）
作者简介:刘刚（1982- ），男，陕西西安人，博士，副教授，从事水土保持与生态环境研究。E-mail：extreme0082000@yahoo.com
通讯作者:杨海龙（1965- ），男，内蒙古赤峰人，副教授，主要研究领域为流域管理、森林水文。E-mial：yang_hlong@163.com

更新日期/Last Update: 2014-01-06