Global patterns and drivers of phosphorus fraction variability in cropland soils

IF 10.9 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling Pub Date : 2025-07-11 DOI:10.1016/j.resconrec.2025.108498

Haiqing Gong , Yue Xiang , Mengcan Jin , Chen Chen

{"title":"Global patterns and drivers of phosphorus fraction variability in cropland soils","authors":"Haiqing Gong , Yue Xiang , Mengcan Jin , Chen Chen","doi":"10.1016/j.resconrec.2025.108498","DOIUrl":null,"url":null,"abstract":"<div><div>Understanding soil phosphorus fraction transformation efficiency (PTE) is critical for optimizing fertilizer use and promoting sustainable agriculture. However, the global variability in soil phosphorus (P) fraction responses to P inputs remains poorly understood, partly due to challenges in capturing spatial and environmental heterogeneity. Here, we integrated 454 global field observations with high-resolution climate and soil data using meta-analysis and machine learning to assess global variability in PTE and identify its key environmental drivers. Global mapping revealed PTEs of 1.12, 1.45, and 1.85 mg of P accumulated in the labile, moderately labile, and non-labile soil pools per kg of P input per hectare, respectively. Key drivers of PTE included soil total P, total nitrogen, mean annual temperature, and bulk density, with chemical properties exerting the strongest influence. Our high-resolution spatial analysis of PTE establishes a quantitative framework for site-specific P management, particularly identifying regions with contrasting climatic and edaphic conditions. The mechanistic understanding of P fraction transformation patterns provides actionable insights for improving P-use efficiency while maintaining agricultural productivity, prioritizing intervention strategies across global croplands.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"223 ","pages":"Article 108498"},"PeriodicalIF":10.9000,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Resources Conservation and Recycling","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0921344925003763","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}

引用次数: 0

Abstract

Understanding soil phosphorus fraction transformation efficiency (PTE) is critical for optimizing fertilizer use and promoting sustainable agriculture. However, the global variability in soil phosphorus (P) fraction responses to P inputs remains poorly understood, partly due to challenges in capturing spatial and environmental heterogeneity. Here, we integrated 454 global field observations with high-resolution climate and soil data using meta-analysis and machine learning to assess global variability in PTE and identify its key environmental drivers. Global mapping revealed PTEs of 1.12, 1.45, and 1.85 mg of P accumulated in the labile, moderately labile, and non-labile soil pools per kg of P input per hectare, respectively. Key drivers of PTE included soil total P, total nitrogen, mean annual temperature, and bulk density, with chemical properties exerting the strongest influence. Our high-resolution spatial analysis of PTE establishes a quantitative framework for site-specific P management, particularly identifying regions with contrasting climatic and edaphic conditions. The mechanistic understanding of P fraction transformation patterns provides actionable insights for improving P-use efficiency while maintaining agricultural productivity, prioritizing intervention strategies across global croplands.

查看原文本刊更多论文

农田土壤磷组分变化的全球格局和驱动因素

了解土壤磷组分转化效率（PTE）对优化肥料利用和促进农业可持续发展具有重要意义。然而，土壤磷(P)组分对磷输入响应的全球变异性仍然知之甚少，部分原因是在捕捉空间和环境异质性方面存在挑战。在这里，我们将454个全球实地观测与高分辨率气候和土壤数据结合起来，使用元分析和机器学习来评估PTE的全球变化，并确定其关键的环境驱动因素。全球图谱显示，每公顷每千克磷输入，在不稳定、中度不稳定和非不稳定土壤库中积累的磷的pte分别为1.12、1.45和1.85 mg。土壤全磷、全氮、年平均温度和容重是影响PTE的关键因素，其中化学性质对PTE的影响最大。我们对PTE的高分辨率空间分析为特定地点的P管理建立了定量框架，特别是识别具有不同气候和地理条件的地区。对磷组分转化模式的机理理解为在保持农业生产力的同时提高磷利用效率提供了可操作的见解，并为全球农田的干预策略提供了优先级。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Resources Conservation and Recycling 环境科学-工程：环境

CiteScore

22.90

自引率

6.10%

发文量

625

审稿时长

23 days

期刊介绍： The journal Resources, Conservation & Recycling welcomes contributions from research, which consider sustainable management and conservation of resources. The journal prioritizes understanding the transformation processes crucial for transitioning toward more sustainable production and consumption systems. It highlights technological, economic, institutional, and policy aspects related to specific resource management practices such as conservation, recycling, and resource substitution, as well as broader strategies like improving resource productivity and restructuring production and consumption patterns. Contributions may address regional, national, or international scales and can range from individual resources or technologies to entire sectors or systems. Authors are encouraged to explore scientific and methodological issues alongside practical, environmental, and economic implications. However, manuscripts focusing solely on laboratory experiments without discussing their broader implications will not be considered for publication in the journal.