Comparison of methods for evaluating soil quality of semiarid ecosystem and evaluation of the effects of physico-chemical properties and factor soil erodibility (Northern Plateau, Spain)

Santos-Francés, Fernando; Martínez-Graña, Antonio Miguel; Ávila-Zarza, Carmelo; Criado, Marco; Sánchez, Yolanda Sánchez

doi:10.1016/j.geoderma.2019.07.030

Cited by 54 publications

(49 citation statements)

References 47 publications

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“…The study area has moderate and good quality soils [87], therefore being an area of good agricultural aptitude, which explains why these soils have been cultivated for centuries, being already one of the main food sources of the Roman Empire after reaching Hispania, who considered these zones as "the granary of Spain" [88]. However, the abundance of agricultural soils should not be an excuse to promote the sealing of higher quality soils (Class II).…”

Section: Discussionmentioning

confidence: 99%

“…In short, the urban expansion has not followed rigorous sustainable criteria: the invasion of restrictive areas (with risks to the population and higher agro-environmental quality) has increased 2.5 times from 1985 to 2018. As an example, Figure 9 shows the construction of new buildings in the last few years in Salamanca-vicinity floodplains, which have occupied high-quality soils and areas with flood risk The study area has moderate and good quality soils [87], therefore being an area of good agricultural aptitude, which explains why these soils have been cultivated for centuries, being already one of the main food sources of the Roman Empire after reaching Hispania, who considered these zones as "the granary of Spain" [88]. However, the abundance of agricultural soils should not be an excuse to promote the sealing of higher quality soils (Class II).…”

Section: Discussionmentioning

confidence: 99%

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Multitemporal Analysis of Soil Sealing and Land Use Changes Linked to Urban Expansion of Salamanca (Spain) Using Landsat Images and Soil Carbon Management as a Mitigating Tool for Climate Change

et al. 2020

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The lack of urban sustainability is a widespread deficiency in urban agglomerations. To achieve adequate land use, we present a methodology that allows for: 1) the identification of the impacts caused by urban expansion since 1956 to the present in Salamanca (Spain); and 2) the promotion of a more sustainable future in urban development. A multi-temporal assessment of land use was made by remote sensing, while sustainability criteria were analyzed using the multicriteria analysis (MCA) with Geographical Information Systems (GIS). In addition, we established recommendations for soil carbon management in semi-arid ecosystem soils that contribute to climate change mitigation. The results show an increase of the urbanized area from 3.8% to 22.3% in the studied period, identifying up to 15% of buildings in zones with some type of restriction. In 71% of the cases, urbanization caused the sealing of productive agricultural soils (2519 Ha), almost 20% of which were of the highest quality. In last few decades, an excessive increase of built-up areas in comparison to population dynamics was identified, which causes unnecessary soil sealing that affects the food production and the capacity to mitigate climate change by managing the carbon cycle in the soil.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Multitemporal Analysis of Soil Sealing and Land Use Changes Linked to Urban Expansion of Salamanca (Spain) Using Landsat Images and Soil Carbon Management as a Mitigating Tool for Climate Change

et al. 2020

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“…The total data set were the following soil properties: soil texture, pH, OC, BD, PO, EC, MWD, CEC, CCE, SMR, ESP, TN, AK, AP, AFe, AMn, AZn, and ACu. These soil properties were selected based on previous literature [5,15,16,17,22,24,26,27,33,50,51,52,53,54]. Initially, the soil quality indicators that did not demonstrate a significant correlation with wheat yields were removed and were not included in the MDS [6].…”

Section: Assessment Of Soil Quality Index (Sqi) 241 Determining Thmentioning

confidence: 99%

“…This is the most frequently used process for assessing soil quality. Soil quality indicators generate SQIs in an easy and flexible format based on an integrated valuation of SQIs and their weights [14][15][16][17]. SQIs have been successfully applied at various scales for different purposes such as assessing the impacts of agricultural practices, soil management, salinization and alkalization on soil quality and crop production [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…By comparison, cultivated crops can grow vigorously on deeper soils (e.g. inceptisols), which have greater soil depth, permeability, water retention, and fertility and a lower degree of erosion [5,32,33,15]. Therefore, a systematic soil quality assessment for rainfed winter wheat, as one of the most important crops throughout the world, based on yield under various soil types is essential to develop appropriate soil management strategies and to enhance rainfed winter wheat yield.…”

Section: Introductionmentioning

confidence: 99%

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Assessing the Influence of Soil Quality on Rainfed Wheat Yield

Nabiollahi¹,

Heshmat²,

Mosavi³

et al. 2020

Preprint

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Soil quality assessment based on crop yields and identification of key indicators of it can be used for better management of agricultural production. In the current research, the weighted additive soil quality index (SQIw), factor analysis (FA) and multiple linear regression (MLR) method are used to assess the soil quality of rainfed winter wheat fields with two soil orders on 53.20 km2 of agricultural land in western Iran. A total of 18 soil quality indicators were determined for 100 soil samples (0-20 cm depth) from two soil orders (Inceptisols and Entisols). The soil properties measured were: pH, soil texture, organic carbon (OC), cation exchange capacity (CEC), electrical conductivity (EC), soil microbial respiration (SMR), carbonate calcium equivalent (CCE), soil porosity (SP), bulk density (BD), exchangeable sodium percentage (ESP), mean weight diameter (MWD), available potassium (AK), total nitrogen (TN), available phosphorus (AP), available Fe (AFe), available Zn (AZn), available Mn (AMn), and available Cu (ACu). Mean wheat grain yield for the two years for all of the 100 sampling sites was also gathered. The SQIw was calculated using two weighting methods (FA and MLR) and maps were created using a digital soil mapping framework. The soil indicators taken in the minimum data set (MDS) were AK, clay, CEC, AP, SMR, and sand. The correlation between the MLR weighting technique (SQI-M) and the rainfed wheat yield (r=0.62) was slightly larger than that the correlation of yield with the FA weighted technique (SQI-F) (r=0.58). Results showed that the means of both SQI-M and SQI-F and rainfed wheat yield for Inceptisols were higher than for Entisols although these differences were not statistically significant. Both SQI-M and SQI-F showed that areas with Entisols had lower proportions of good soil quality grades (Grade I and II), and higher proportions of poor soil quality grades (Grade IV and V) compared to Inceptisols. Based on these results, soil type must be considered for soil quality assessment in future studies to maintain and enhance soil quality and sustainable production. The overall soil quality of the study region was of poor and moderate grades. To improve soil quality, it is therefore recommended that effective practices such as the implementation of scientific integrated nutrient management involving the combined use of organic and inorganic fertilizers in rainfed wheat fields be promoted.

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Soil quality assessment of cropland in China and its relationships with climate and topography

Chen

et al. 2022

Land Degrad Dev

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Assessing soil quality (SQ) of cropland is fundamental for food security and sustainable land management. However, there is limited information regarding SQ assessment on a national scale, which is vital to answer important SQ-related questions in quantitative terms on that scale. Here, the SQ of cropland in China was assessed by constructing a minimum data set (MDS) from 23 soil physicochemical properties based on principal component analysis. The interaction roles and relative contributions of climate and topography on SQ was evaluated by a structural equation model.The MDS comprised eight indicators: proportion of silt, bulk density, total phosphorus, total potassium, available nitrogen, exchangeable calcium, chlorite, and vermiculite. The soil quality index (SQI) varied from 0.245 to 0.705 and showed a clear pattern of decreasing quality from the north to the south of the country. Of the total cropland area in China, the largest share (27.91%) was of soils of high quality, followed by those of moderate quality (24.63%), low quality (20.37%), very high quality (14.18%), and very low quality (12.91%). The north and the south differed significantly in terms of total potassium, exchangeable calcium, chlorite, and vermiculite, which are the four most important indicators of SQ. Climate and elevation explained about 2.2%-30.1% of the variation in SQ on the national and regional scales. These findings suggest that croplands in southern China will benefit from potassium and calcium fertilizers, which will contribute to enhance food security and promote sustainable land management in China.

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Comparison of methods for evaluating soil quality of semiarid ecosystem and evaluation of the effects of physico-chemical properties and factor soil erodibility (Northern Plateau, Spain)

Cited by 54 publications

References 47 publications

Multitemporal Analysis of Soil Sealing and Land Use Changes Linked to Urban Expansion of Salamanca (Spain) Using Landsat Images and Soil Carbon Management as a Mitigating Tool for Climate Change

Multitemporal Analysis of Soil Sealing and Land Use Changes Linked to Urban Expansion of Salamanca (Spain) Using Landsat Images and Soil Carbon Management as a Mitigating Tool for Climate Change

Assessing the Influence of Soil Quality on Rainfed Wheat Yield

Soil quality assessment of cropland in China and its relationships with climate and topography

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