Xie, Z., Zhang, F., Ye, C., Wang, H., Wei, W., Li, C. and Shi, X. (2021) A tool (SPOLERC) to guide the evaluation of phosphorus leaching for agricultural soil by using the change point value in the Xingkai Lake Basin, China. Environmental Sciences Europe, 33(1), 132. (doi: 10.1186/s12302-021-00572-1)
Text
259672.pdf - Published Version Available under License Creative Commons Attribution. 2MB |
Abstract
Abstract: Background: The soil P leaching change point (CP) has been widely used to evaluate soil P leaching risk. However, an automation calculation method for soil P leaching CP value, and an effective risk grading method performed for classifying soil P leaching risk evaluation have not been developed. Results: This study optimized the calculation process for soil P leaching CP value with two different fitting models. Subsequently, based on the Python programming language, a computation tool named Soil Phosphorus Leaching Risk Calculator (SPOLERC) was developed for soil P leaching risk assessment. SPOLERC not only embedded the calculation process of the soil P leaching CP value, but also introduced the single factor index (SFI) method to grade the soil P leaching risk level. The relationships between the soil Olsen-P and leachable P were fitted by using SPOLERC in paddy soils and arid agricultural soils in the Xingkai Lake Basin, and the results showed that there was a good linear fitting relationship between the soil Olsen-P and leachable P; and the CP values were 59.63 and 35.35 mg Olsen-P kg−1 for paddy soils and arid agricultural soils, respectively. Additionally, 32.7, 21.8, and 3.64% of arid agricultural soil samples were at low risk, medium risk, and high risk of P leaching, and 40.6% of paddy soil samples were at low risk. Conclusions: SPOLERC can accurately fit the split-line model relationship between the soil Olsen-P and leachable P, and greatly improved the calculation efficiency for the soil P leaching CP value. Additionally, the obtained CP value can be used for soil P leaching risk assessment, which could help recognize key area of soil P leaching.
Item Type: | Articles |
---|---|
Additional Information: | This project was funded by the National Key Research and Development Project of China (Watershed non-point source pollution prevention and control technology and application demonstration, 2021YFC3201500-2) and the Xingkai lake Basin Ecological Environment Survey Project. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Shi, Dr John Xiaogang |
Creator Roles: | |
Authors: | Xie, Z., Zhang, F., Ye, C., Wang, H., Wei, W., Li, C., and Shi, X. |
College/School: | College of Social Sciences > School of Social & Environmental Sustainability |
Journal Name: | Environmental Sciences Europe |
Publisher: | Springer |
ISSN: | 2190-4707 |
ISSN (Online): | 2190-4715 |
Copyright Holders: | Copyright © 2021 The Authors |
First Published: | First published in Environmental Sciences Europe 33(1):132 |
Publisher Policy: | Reproduced under a Creative Commons License |
University Staff: Request a correction | Enlighten Editors: Update this record