Micromorphological Features of Old Cultivated and Modern Soils in Guanzhong Areas, Shaanxi Province, China

PANG Jiang-li; HU Xuan-er; HUANG Chun-chang; Zhang Xu

首页> 中文期刊> 《农业科学学报：英文版》 >Micromorphological Features of Old Cultivated and Modern Soils in Guanzhong Areas, Shaanxi Province, China

Micromorphological Features of Old Cultivated and Modern Soils in Guanzhong Areas, Shaanxi Province, China

开具论文收录证明 >>

期刊封面封底目录下载 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Using the data obtained from the LGT soil profile, this article attempts to illustrate the process of modern soil formation in the Guanzhong areas and its micromorphological features. The micromorphology is observed under a petrographic microscope, and its image is quantitatively measured by LEICAL Qwin 2.6 software. Micromorphological observations of the thin sections show that the assemblage of minerals in different horizons is very similar, which is mainly composed of Q and Pl. However, there are obvious differences in C/F15 μm ratio, mineral content, and coarse features. The pedofeatures is mainly composed of clay, calcite, and amorphous Fe. Ap horizon is characterized by abundant needleshaped secondary calcite, secondary clay, and earthworm fecal pellet. BC horizon is characterized by a large quantity of secondary calcite with various shapes. Bt1and Bt2 horizons are characterized by abundant clay hypocoatings and a small quantity of secondary calcite. All the results of this research suggest that Earth-cumulic Orthic Anthrosols consist of both the upper Ap horizon, which cause loessal dung and eolian dust deposition, and cultivation occurs simultaneously during the process of Ap horizon-formation, and the lower BC horizon, which is aeolian sedimentary at the time of relative aridity during late Holocene.

著录项

来源
《农业科学学报：英文版》 |2006年第9期|691-699|共9页
作者
PANG Jiang-li; HU Xuan-er; HUANG Chun-chang; Zhang Xu;
展开▼
作者单位

College of Tourism and Environmental Sciences/Northwest Research Center for Historical Environment and Socio-Economic Development;

Shaanxi Normal University;

Xi＇an 710062;

P.R.China;

College of Foreign Languages;

Shaanxi Normal University;

Xi＇an 710062;

P.R.China;

College of Tourism and Environmental Sciences;

Shaanxi Normal University;

Xi＇an 710062;

P.R.China;

展开▼
原文格式 PDF
正文语种 chi
中图分类土壤成分;
关键词
土壤; 关中地区; 陕西; 有机成分;

机译：微观形态;旧耕地;现代土壤;关中地区;

Micromorphological Features of Old Cultivated and Modern Soils in Guanzhong Areas, Shaanxi Province, China

摘要

著录项

相关主题

期刊订阅