Cadmium accumulation in soils developed from limestone and leaching characteristics of cadmium during development of the soils in western Zhejiang Province

In order to understand the geochemical characteristics of soil cadmium (Cd) during weathering and soil formation of limestone, three types of limestone soils were sampled at the same time from western Zhejiang Province. The Cd enrichment in limestone hills and nearby valleys and the vertical distrib...

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Main Authors: ZHANG Shuang, ZHANG Mingkui
Format: Article
Language:English
Published: Zhejiang University Press 2020-10-01
Series:浙江大学学报. 农业与生命科学版
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Online Access:https://www.academax.com/doi/10.3785/j.issn.1008-9209.2019.11.081
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author ZHANG Shuang
ZHANG Mingkui
author_facet ZHANG Shuang
ZHANG Mingkui
author_sort ZHANG Shuang
collection DOAJ
description In order to understand the geochemical characteristics of soil cadmium (Cd) during weathering and soil formation of limestone, three types of limestone soils were sampled at the same time from western Zhejiang Province. The Cd enrichment in limestone hills and nearby valleys and the vertical distribution of Cd in the soil profiles were studied. The leaching characteristics of Cd during development of the soils were analyzed by mass balance method with reference to stable element zirconium (Zr), and the results were also compared with those of yellowish red soils developed from local shale. The results showed that the leaching and accumulation of Cd in the limestone soils occurred simultaneously. Because of the special soil-forming process of limestone, the enrichment of Zr and Cd in the soils was obvious, and the enrichment amounts of soil Cd in limestone hills and nearby valleys were obviously higher than that of shale-derived hilly soil in the same area. The vertical distribution of Cd in three kinds of limestone soils had obvious differences and the chemical forms of Cd in different limestone soils were also different. The high leaching characteristics of Cd in the soils during weathering of limestone and the surface erosion of the limestone soils with high Cd content may be the main reasons for the high Cd accumulation in the soils in the limestone distribution area and its vicinity.
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series 浙江大学学报. 农业与生命科学版
spelling doaj-art-bfa50e1fe03a46cf8a27b5b8be1ffd4b2025-08-01T03:52:51ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552020-10-014659159810.3785/j.issn.1008-9209.2019.11.08110089209Cadmium accumulation in soils developed from limestone and leaching characteristics of cadmium during development of the soils in western Zhejiang ProvinceZHANG ShuangZHANG MingkuiIn order to understand the geochemical characteristics of soil cadmium (Cd) during weathering and soil formation of limestone, three types of limestone soils were sampled at the same time from western Zhejiang Province. The Cd enrichment in limestone hills and nearby valleys and the vertical distribution of Cd in the soil profiles were studied. The leaching characteristics of Cd during development of the soils were analyzed by mass balance method with reference to stable element zirconium (Zr), and the results were also compared with those of yellowish red soils developed from local shale. The results showed that the leaching and accumulation of Cd in the limestone soils occurred simultaneously. Because of the special soil-forming process of limestone, the enrichment of Zr and Cd in the soils was obvious, and the enrichment amounts of soil Cd in limestone hills and nearby valleys were obviously higher than that of shale-derived hilly soil in the same area. The vertical distribution of Cd in three kinds of limestone soils had obvious differences and the chemical forms of Cd in different limestone soils were also different. The high leaching characteristics of Cd in the soils during weathering of limestone and the surface erosion of the limestone soils with high Cd content may be the main reasons for the high Cd accumulation in the soils in the limestone distribution area and its vicinity.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2019.11.081limestonecadmiumenrichmentleachinghigh geological background
spellingShingle ZHANG Shuang
ZHANG Mingkui
Cadmium accumulation in soils developed from limestone and leaching characteristics of cadmium during development of the soils in western Zhejiang Province
浙江大学学报. 农业与生命科学版
limestone
cadmium
enrichment
leaching
high geological background
title Cadmium accumulation in soils developed from limestone and leaching characteristics of cadmium during development of the soils in western Zhejiang Province
title_full Cadmium accumulation in soils developed from limestone and leaching characteristics of cadmium during development of the soils in western Zhejiang Province
title_fullStr Cadmium accumulation in soils developed from limestone and leaching characteristics of cadmium during development of the soils in western Zhejiang Province
title_full_unstemmed Cadmium accumulation in soils developed from limestone and leaching characteristics of cadmium during development of the soils in western Zhejiang Province
title_short Cadmium accumulation in soils developed from limestone and leaching characteristics of cadmium during development of the soils in western Zhejiang Province
title_sort cadmium accumulation in soils developed from limestone and leaching characteristics of cadmium during development of the soils in western zhejiang province
topic limestone
cadmium
enrichment
leaching
high geological background
url https://www.academax.com/doi/10.3785/j.issn.1008-9209.2019.11.081
work_keys_str_mv AT zhangshuang cadmiumaccumulationinsoilsdevelopedfromlimestoneandleachingcharacteristicsofcadmiumduringdevelopmentofthesoilsinwesternzhejiangprovince
AT zhangmingkui cadmiumaccumulationinsoilsdevelopedfromlimestoneandleachingcharacteristicsofcadmiumduringdevelopmentofthesoilsinwesternzhejiangprovince