Temporal variation of significant soil hydrological parameters in the Yutian oasis in Northwest China from 2001 to 2010

Mamat, Zulpiya; Halik, Ümüt; Muhtar, Polat; Nurmamat, Ilyas; Abliz, Abdulla

doi:10.1007/s12665-015-5152-6

Cited by 6 publications

(2 citation statements)

References 25 publications

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“…Both the maximum and minimum values appeared in ECav05. The average values of ECav05 and ECav01 were higher than ECa h05 and ECah01, which was related to the continuous increase of total amount of soil water content from top to bottom layer in the study area, relatively [71]. Bennett and George [72] and Mcfarlane and Ryder [73] reported that moisture content plays an important role in electromagnetic induction measurements.…”

Section: Statistical Description Of Eca and Ec Datamentioning

confidence: 87%

Using Apparent Electrical Conductivity as Indicator for Investigating Potential Spatial Variation of Soil Salinity across Seven Oases along Tarim River in Southern Xinjiang, China

et al. 2020

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Soil salinization is a major soil health issue globally. Over the past 40 years, extreme weather and increasing human activity have profoundly changed the spatial distribution of land use and water resources across seven oases in southern Xinjiang, China. However, knowledge of the spatial distribution of soil salinization in this region has not been updated since a land survey in the 1970s to 1980s (the harmonized world soil database, HWSD) due to scarce observational data. Now, given the uncertainty raised by near future climate change, it is important to develop quick, reliable and accurate estimates of soil salinity at larger scales for a better manage strategy to the local fragile ecosystem that with limited land and water resources. This study collected electromagnetic induction (EMI) readings near surface soil to update on the spatial distribution and changes of water and salt in the region and to map apparent electrical conductivity (ECa, mS·m−1), in four coil configurations: vertical dipole in 1.50 m (ECav01) and 0.75 m (ECav05), so as the horizontal dipole in 0.75 m (ECah01) and 0.37 m (ECah05), then all the ECa coil configurations were modeled with random forest algorithm. The validation results showed an R2 range of 0.77–0.84 and an RMSE range of 115.17–142.76 mS·m−1. The validation accuracy of deep ECa dipole (ECah01, ECav05, and ECav01) was greater than that of shallow ECa (ECah05), as the former integrated a thicker portion of the subsurface. The range of EC spatial variability that can be explained by ECa is 0.19–0.36 (farmland, mean value is 0.28), grassland is 0.16–0.49 (shrub/grassland, mean value is 0.34), and bare land is 0.28–0.70 (bare land, mean value is 0.56). Among them, ECav01 has the best predictive ability. As the depth increased, the influence of soil-related variables decreased, and the contribution of climate-related variables increased. The main factor affecting ECa variation was climate-related variables, followed by vegetation-related variables and soil-related variables. Scatter plot show ECa was significantly correlated with ECe_HWSD_030 (0–30 cm, r = 0.482, p < 0.01) and ECe_HWSD_30100 (30–100 cm, r = 0.556, p < 0.01). The predicted spatial ECa maps were similar to the ECe values from HWSD, but also implies that the distribution of soil water and salt has undergone tremendous changes since 1980s. The study demonstrates that EMI data provide a reliable and cost-effective tool for obtaining high-resolution soil maps that can be used for better land evaluation and soil improvement at larger scales.

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Section: Statistical Description Of Eca and Ec Datamentioning

confidence: 87%

Using Apparent Electrical Conductivity as Indicator for Investigating Potential Spatial Variation of Soil Salinity across Seven Oases along Tarim River in Southern Xinjiang, China

et al. 2020

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“…Many water resource investigations and geological surveys have been planned to support the Silk Road project, and some research institutes have been established. Researchers are also exploring the contradiction between economic growth and environmental protection (e.g., Chen et al 2016a;Li et al 2016a;Mamat et al 2016;Peng et al 2016;Xie et al 2015). These studies are one small step toward the sustainable development of society and the environment.…”

Section: Introductionmentioning

confidence: 99%

Groundwater Quality in Western China: Challenges and Paths Forward for Groundwater Quality Research in Western China

2016

Expo Health

140

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Groundwater quality issues are becoming as important as groundwater quantity issues, making groundwater quality research a hot topic worldwide. With human activity intensifying in western China as a result of the West Development Program and the Silk Road economic belt project of China, groundwater quality in western China is deteriorating rapidly. This special issue of Exposure and Health promotes groundwater quality research to respond to these challenges. This introductory article details the challenges faced by contemporary groundwater quality researchers, and proposes ways to advance groundwater quality research in western China. The paper also introduces the articles that follow in this special issue. The key goal of this work is to encourage new and experienced scholars to engage with this field.

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Estimation of water consumption of riparian forest in the lower reaches of Tarim River, northwest China

2017

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Temporal variation of significant soil hydrological parameters in the Yutian oasis in Northwest China from 2001 to 2010

Cited by 6 publications

References 25 publications

Using Apparent Electrical Conductivity as Indicator for Investigating Potential Spatial Variation of Soil Salinity across Seven Oases along Tarim River in Southern Xinjiang, China

Using Apparent Electrical Conductivity as Indicator for Investigating Potential Spatial Variation of Soil Salinity across Seven Oases along Tarim River in Southern Xinjiang, China

Groundwater Quality in Western China: Challenges and Paths Forward for Groundwater Quality Research in Western China

Estimation of water consumption of riparian forest in the lower reaches of Tarim River, northwest China

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