土默特左旗农田土壤环境质量综合评价及特色农业开发建议

doi:10.11720/wtyht.2023.1044

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Abstract

Land is an important basic resource for human survival and stable social and economic development, and cultivated land is an integral part of land resources. Ascertaining the quality of cultivated land is of great significance for the scientific and rational utilization of cultivated land and the sustainable development of green ecological agriculture. Using the methods for 1:50,000 geochemical survey and evaluation, this study conducted the quality evaluation and the classification of land in the study area based on the contents of beneficial nutrient elements and toxic and harmful elements in soils and analyzed the distribution and controlling factors of elements in soils. The results of this study are as follows. The soils in the study area consist mainly of alluvial-proluvial deposits from the Yellow River and are primarily used for agriculture and animal husbandry. The soils are not contaminated by heavy metals and are rich in nutrients, with the first- and second-grade excellent soils collectively accounting for 88.85%. Moreover, most soils in the study area have moderate selenium content. Therefore, it is recommended that selenium-rich land resources should be incorporated into the government land planning to develop agriculture with distinctive local features.

Key words： environmental quality comprehensive evaluation agriculture with distinctive local features farmland soil Tumed Left Banner

Received: 06 February 2022 Published: 27 April 2023

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	Articles by authors
	Feng-Qin BAO
	Hang-Xin CHENG
	Sheng YONG
	Yu-Liang YANG
	Zhi-Chao MA
	Li-Juan ZHAO

Cite this article:

Feng-Qin BAO,Hang-Xin CHENG,Sheng YONG, et al. The comprehensive evaluation of farmland soil environmental quality and suggestions on the development of agriculture with distinctive local features in Tumed Left Banner, Inner Mongolia[J]. Geophysical and Geochemical Exploration, 2023, 47(2): 487-495.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2023.1044 OR https://www.wutanyuhuatan.com/EN/Y2023/V47/I2/487

Land use status map of Tumd Left Banner

Bitmap of sampling points

Analysis supporting scheme, detection limit, accuracy and precision control, statistical table of qualified rate of monitoring samples

Total nitrogen, phosphorus and potassium in soil and grading standard of selenium

Comprehensive classification table of soil nutrient geochemistry

Screening value of soil pollution risk for agricultural land

Classification of soil environmental geochemistry

Graphical representation and meaning of soil quality geochemical comprehensive grades

Soil pH distribution

Characteristic values and classification statistics of soil nutrient indicators

Geochemical characteristic values and classification statistics of soil selenium

Classification of selenium levels in soil

Statistical of comprehensive grade classification of soil nutrient geochemistry

The comprehensive grading map of soil nutrient geochemistry

Classification of single index geochemical grades of heavy metal elements

Comprehensive classification of soil environmental geochemistry in the study area

The comprehensive grading map of soil environmental geochemical quality

The comprehensive classification of soil quality and geochemistry

The comprehensive grading map of
soil quality geochemistry

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