Epigenetic geochemical dynamics and driving mechanisms of chemical elemental distribution patterns in soil in Southwest China

Hangxin Cheng; Чэн Хансинь; Min Peng; Пэн Минь; Chuandong Zhao; Чжао Чуаньдун; Wei Han; Хань Вэй; Huiyan Wang; Ван Хуйянь; Qiaolin Wang; Ван Цяолинь; Fan Yang; Ян Фань; Fugui Zhang; Чжан Фугуй; Chengwen Wang; Ван Чэнвэнь; Fei Liu; Лю Фэй; Yalong Zhou; Чжоу Ялун; Shiqi Tang; Тан Шици; Kuo Li; Ли Ко; Ke Yang; Ян Кэ; Zheng Yang; Ян Чжэн; Xiaomeng Cheng; Чэн Сяомэн; Ziwan Chen; Чэнь Цзывань; Hua Zhang; Чжан Хуа; Chunhu Mo; Мо Чуньху

doi:10.21285/2686-9993-2020-43-3-375-417

Epigenetic geochemical dynamics and driving mechanisms of chemical elemental distribution patterns in soil in Southwest China

Authors: Cheng H.¹, Peng M.¹^,2, Zhao C.¹, Han W.¹, Wang H.¹, Wang Q.¹, Yang F.¹, Zhang F.¹, Wang C.¹, Liu F.¹, Zhou Y.¹, Tang S.¹, Li K.¹, Yang K.¹, Yang Z.¹, Cheng X.¹, Chen Z.³, Zhang H.⁴, Mo C.⁵
Affiliations:
1. Institute of Geophysical & Geochemical Exploration, Chinese Academy of Geological Sciences
2. China University of Geosciences (Beijing)
3. Yunnan Institute of Geological Survey
4. Sichuan Geological Survey
5. Guizhou Geological Survey
Issue: Vol 43, No 3 (2020)
Pages: 375-417
Section: Geoecology
URL: https://journals.rcsi.science/2686-9993/article/view/358555
DOI: https://doi.org/10.21285/2686-9993-2020-43-3-375-417
ID: 358555

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Abstract

The Earth’s surface is a complex system involving mutual interactions of its many components, including mountains, rivers, forests, farmlands, lakes and grasses. The interaction and mutual feedback of chemical elements in Earth's surface layer can drive changes in chemical elemental distribution patterns. In this study, we evaluated the mechanisms and interactions driving the distribution patterns of macroelements, probiotics, halogens and heavy metals in soils in Southwest China, based on a systematic geochemical land-quality survey at a scale of 1:250000. The results showed that the parent material determines the natural state of chemical elements in land resources. Epigenetic geochemical dynamics reshapes the distribution patterns of chemical elements in top soil; biogeochemical processes drive the evolutionary trends of land quality; and human activities, such as mining, disrupt the natural evolution of chemical elemental distribution patterns. The establishment of an epigenetic geochemical dynamics theory allows the construction of a framework for understanding the Earth's surface layer and promoting technological innovations for the comprehensive geochemical investigation of land resources.

Keywords

epigenetic geochemical dynamics, driving mechanisms, distribution pattern of elements in soils, Southwest China

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Epigenetic geochemical dynamics and driving mechanisms of chemical elemental distribution patterns in soil in Southwest China

Full Text

Abstract

Keywords

About the authors

References

Supplementary files