The characteristics of soil salinization effects on nitrogen mineralization and nitrification in upland fields

doi:10.3389/fenvs.2024.1369554

	The characteristics of soil salinization effects on nitrogen mineralization and nitrification in upland fields
	Tao, Yinglu 1; Xie, Wenjun 1; Xu, Lei 1; Zhang, Lichang 1; Wang, Guangmei2 ; Wang, Xiaoning 1; Shi, Cailing 1
发表期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
	2024-02-14
卷号	12 页码:11
关键词	salinity level N turnover soil properties N management meta-analysis
DOI	10.3389/fenvs.2024.1369554
通讯作者	Xie, Wenjun([email protected])
英文摘要	The influence of soil salinization on nitrogen (N) transformation is largely unknown, which impedes the reasonable management of N in saline fields. A comprehensive meta-analysis was thus conducted to evaluate the effects of salinity and relative soil physicochemical properties on net N mineralization and nitrification in upland soils. Results showed that effects of salinity on the net-N mineralization rate (Min) and nitrification rate (Nit) changed with the salinity level and incubation time. Generally, the inhibitory effect of salt on Min and Nit decreased gradually with incubation time. At 14-16 days of soil incubation, significant stimulatory effects on Min were observed in middle-level (ECe: 12-16 dS m(-1)) and high-level (ECe >16 dS m(-1)) saline soils, and on Nit in low-level (ECe: 4-12 dS m(-1)) saline soils. Regression analysis revealed that the effects of soil organic carbon (SOC), total N (TN), C/N, pH, and clay content on Min and Nit were closely related to salinity levels. Nit at 5-7 days of soil incubation first enhanced and then decreased with C/N increase, and the threshold value was 34.7. The effect of pH on Nit changed with salinity levels, and shifted from stimulation to inhibition with increasing pH. Min at 5-7 days of soil incubation in middle-level group first increased with increasing pH, and decreased when pH was higher than 8.1. Salinization deeply affected soil properties, which further influenced N turnover via alteration of the availability of substrates and microbial biomass and activities. Our findings suggest that the influence of salinity on soil N turnover closely related with salinity level, and salinity level should be considered fully when optimizing N management in saline upland fields.
资助机构	National Natural Science Foundation of China ; Talent Introduction Program of Qingdao University of Technology ; Science and Technology Specific Projects in Agricultural High-tech Industrial Demonstration Area of the Yellow River Delta
收录类别	SCI
语种	英语
关键词[WOS]	MICROBIAL BIOMASS ; ORGANIC-MATTER ; HETEROTROPHIC NITRIFICATION ; FOREST SOILS ; SALINITY ; CARBON ; RATES ; GROSS ; PH ; TRANSFORMATIONS
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:001175171200001
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/36117
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室支撑部门_黄河三角洲盐碱地农田生态系统观测研究站
通讯作者	Xie, Wenjun
作者单位	1.Qingdao Univ Technol, Sch Environm & Municipal Engn, Qingdao, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Key Lab Coastal Environm Proc, Yantai, Peoples R China
推荐引用方式 GB/T 7714	Tao, Yinglu,Xie, Wenjun,Xu, Lei,et al. The characteristics of soil salinization effects on nitrogen mineralization and nitrification in upland fields[J]. FRONTIERS IN ENVIRONMENTAL SCIENCE,2024,12:11.
APA	Tao, Yinglu.,Xie, Wenjun.,Xu, Lei.,Zhang, Lichang.,Wang, Guangmei.,...&Shi, Cailing.(2024).The characteristics of soil salinization effects on nitrogen mineralization and nitrification in upland fields.FRONTIERS IN ENVIRONMENTAL SCIENCE,12,11.
MLA	Tao, Yinglu,et al."The characteristics of soil salinization effects on nitrogen mineralization and nitrification in upland fields".FRONTIERS IN ENVIRONMENTAL SCIENCE 12(2024):11.