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从小麦田到果园的土地利用变化增加了化物积累和相关的环境风险

Xunrong Huang¹, Hongbing Gao², Kun Chen¹

¹College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China.

Journal of hazardous materials

|August 15, 2025

概括

西省的密集种植基维果显著增加了土壤化物积累,特别是在表面层,由于使用酸盐肥料. 这种土地利用变化带来了环境风险,强调了需要优化施肥策略来管理化物水平的必要性.

科学领域:

环境科学环境科学
土壤科学土壤科学
农业科学农业科学

背景情况:

山西的农田越来越多地转化为果园,投入高的酸盐肥料和灌.
这种土地利用变化对土壤化物积累和分布的长期影响仍然不清楚.

研究的目的:

研究将谷物作物农田转换为果园对土壤化物积累和垂直分布的影响.
评估西主要果生产地区的相关环境风险.

主要方法:

从不同年龄 (10,20,30年) 的小麦田和果园收集了土壤样本,深度高达100厘米.
分析了土壤特性,包括电导率 (EC),有机物质 (SOM),Mg2+,总 (TP),可用 (AP),总化物 (TF) 和水溶性化物 (WSF).

主要成果:

与小麦田相比,基维果园在表面土壤中显示出更高的EC,SOM,Mg2+,TP和AP.
果园土壤中平均TF (688.2814.4毫克/公斤) 和WSF (7.4210.46毫克/公斤) 度随着年龄的增长而增加,高于小麦田.
据估计,TF的累积率为6.1mg/kg/年,在表面土壤中度最高,反映了的分布.

结论:

土地利用转变为密集果园,显著提高了土壤化物积累,特别是在表面土壤中.
过度应用酸盐肥料是化物积累的关键驱动因素,造成环境风险.
这些发现支持了在果种植中优化化肥料策略的必要性,以减轻化物积累.

关键词:

在受精过程中受精.化物的积累化物的积累果 - - 果 - - 果.垂直变化的垂直变化

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