Soil Quality Assessment in Farmland of a Rapidly Industrializing Area in the Yangtze Delta, China

Zhang, Xiangling; Wang, Genmei; Zhang, Huanchao; Yu, Ruisi; Li, Ning; Zheng, Jiexiang; Yu, Ye

doi:10.3390/ijerph191912912

Cited by 5 publications

(4 citation statements)

References 63 publications

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“…The entropy weight method is a technique used to objectively quantify and synthesize multi‐factor decision‐making (An et al., 2022) and the TOPSIS method is widely employed in land evaluation and does not have strict restrictions on data distribution or sample size (Zhang et al., 2022). The calculation process for the entropy weight TOPSIS method is as follows:…”

Section: Methodsmentioning

confidence: 99%

Soil health assessment of an acidic red soil agricultural area and its restoration with biochar soil conditioners

Li,

Jiang,

Lyu

2023

Soil Use and Management

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In light of growing concerns regarding food security and soil health, there is increasing emphasis on the assessment of soil health and efforts to improve or maintain the soil health of cultivated land. This case study Niutian Town in Jiangxi Province in southern China was selected as a typical red soil and a major grain‐producing area. This research involves an integrated evaluation model based on Entropy weight TOPSIS and emergy analysis to assess the soil health of cultivated land. An evaluation system was developed, comprising 31 indicators selected on the basis of resources and environments, with an emphasis on sensitive and promising microorganisms category indicators. Additionally, experiments were conducted to assess the ecological risk of soil pollution and develop novel soil conditioners. Our results indicate that Pb, Hg and Cd present a moderate ecological risk on 92.1% of the cultivated land. Furthermore, 56.8% of the cultivated land was ‘sub‐healthy’ or ‘unhealthy’. Biochar was found to be a soil conditioner with a good adsorption effect, with absorption rates reaching up to 99.9% and 88.3% for Pb and Cd, respectively. Additionally, g‐C3N4 was added to address pesticide contamination, which showed an adsorption rate of up to 75.2% for atrazine. This work develops a targeted remediation approach based on assessment results to address regional cropland soil health issues.

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Section: Methodsmentioning

confidence: 99%

Soil health assessment of an acidic red soil agricultural area and its restoration with biochar soil conditioners

Li,

Jiang,

Lyu

2023

Soil Use and Management

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“…The salt content (WSSC) was determined by the gravimetric method. The content of soil organic matter (SOM) was determined by the potassium dichromate volumetric method and by the external heating method [31]. The content of total nitrogen (TN) was determined by the semi-trace Kelvin method [32].…”

Section: Soil Data Sources and Sample Collectionmentioning

confidence: 99%

Soil Quality Evaluation Based on A Minimum Data Set (MDS)—A Case Study of Tieling County, Northeast China

Qian¹,

Yu²,

Dong³

et al. 2023

Preprint

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Soil quality is related to food security and human survival and development. In recent years, due to the acceleration of urbanization and the increase of abandoned land, land degradation occurs, poor topsoil quality. In this study, the minimum data set (MDS) was constructed through principal component analysis (PCA) to determine the indicator data set for evaluating topsoil quality in Tieling County, China. In addition, the soil quality index (SQI) was calculated to analyze the spatial distribution characteristics and influencing reasons of topsoil quality in Tieling County. The re-sults showed that MDS included total potassium (TK), Clay, zinc (Zn), soil organic matter (SOM), soil water content (SWC), cation exchange capacity (CEC), pH, and copper (Cu). The MDS indicators can well replace all indicators to evaluate the topsoil quality in the study area. The overall soil quality of Tieling County showed a trend of low in the east and high in the west, and gradually increased from the hilly area to the plain area. The evaluation results are consistent with field research, which can provide reference for other topsoil quality evaluation, and it also provide a basis for the formulation of soil quality improvement measures.

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“…The salt content (WSSC) was determined by the gravimetric method. The content of soil organic matter (SOM) was determined by the potassium dichromate volumetric method and by the external heating method [30]. The content of total nitrogen (TN) was determined by the semi-trace Kelvin method [31].…”

Section: Soil Data Sources and Sample Collectionmentioning

confidence: 99%

Soil Quality Evaluation Based on a Minimum Data Set (MDS)—A Case Study of Tieling County, Northeast China

Qian

Xiuru

et al. 2023

Land

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Soil quality is related to food security and human survival and development. Due to the acceleration of urbanization and the increase in abandoned land, the quality of topsoil has deteriorated, thus resulting in land degradation in recent years. In this study, a minimum data set (MDS) was constructed through principal component analysis (PCA) to determine the indicator data set for evaluating topsoil quality in Tieling County, northeast China. In addition, the soil quality index (SQI) was calculated to analyze the spatial distribution characteristics of the topsoil quality and the influencing factors. The results showed that the MDS included total potassium (TK), clay, zinc (Zn), soil organic matter (SOM), soil water content (SWC), cation exchange capacity (CEC), pH, and copper (Cu), which could replace all other indicators for assessing the topsoil quality in the research region. The overall soil quality of Tieling County showed a trend of being low in the east and high in the west, and it gradually increased from the hilly area to the plain area. The topsoil quality of Tieling County is divided into one to five levels, with grade-I being the best and grade-V being the worst. The proportion of Grade-II and grade-III is the largest, which is 28.5% and 26.3%, respectively, and grade-V is the smallest, which is 9.6%. The evaluation results are consistent with field research, which can provide a reference for other topsoil quality evaluations, and it also provides a basis for the formulation of soil quality improvement measures.

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Soil Quality Assessment in Farmland of a Rapidly Industrializing Area in the Yangtze Delta, China

Cited by 5 publications

References 63 publications

Soil health assessment of an acidic red soil agricultural area and its restoration with biochar soil conditioners

Soil health assessment of an acidic red soil agricultural area and its restoration with biochar soil conditioners

Soil Quality Evaluation Based on A Minimum Data Set (MDS)—A Case Study of Tieling County, Northeast China

Soil Quality Evaluation Based on a Minimum Data Set (MDS)—A Case Study of Tieling County, Northeast China

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