Development of soil phosphorus storage capacity for phosphorus retention/release assessment in neutral or alkaline soils

doi:10.17221/482/2021-PSE

	Development of soil phosphorus storage capacity for phosphorus retention/release assessment in neutral or alkaline soils
	Xu, Gang1,2 ; Yue, Mengyu 1; Song, Jiawei 2,3; Chen, Xiaobing2 ; Ren, Yuxuan 1
发表期刊	PLANT SOIL AND ENVIRONMENT
ISSN	1214-1178
	2022-02-24
页码	9
关键词	macronutrient accumulation environmental risk external phosphorus pollution land uses
DOI	10.17221/482/2021-PSE
通讯作者	Xu, Gang([email protected])
英文摘要	The concept of the soil phosphorus storage capacity (SPSC) was successfully used to evaluate the phosphorus (P) loss risk and the P retention capacity of acidic soil. This study extended the concept of SPSC from acidic soil to neutral or alkaline soil. A total of 95 surfaces (0-10 cm) soil samples were collected from the Yellow River Delta (YRD) for use in this study. Batch sorption experiments, correlation analysis, stepwise regression, and a split-linemodel were used to calculate the threshold value of the degree of P saturation (DPS). The SPSC was developed based on the DPS threshold value. Based on a DPS threshold value of 11.5%, we developed the following equation for calculating the SPSC: SPSC = (11.5% - soil DPS) x (0.113 x SOM (soil organic matter) + 1.343 x CaCO3). In the continuous system in this watershed, from wetland to farmland, the SPSC for vegetable fields (-94.7 +/- 79.1 mg/kg) was lowest and that of the restored wetland (76.3 +/- 26.1 mg/kg) was the highest. Along the transition zone in the YRD, both the natural soil development and human alternations significantly affected the soil P loss/retention capacity. In terms of P storage, the restored wetlands are the highlands for P retention and the vegetable fields contribute significantly to the P loss in the YRD. As a result, we strongly recommend that the restored wetlands be fully utilised for P retention and that P fertiliser no be applied to the fields to prevent P loss into the watershed.
资助机构	National Natural Science Foundation of China
收录类别	SCI
语种	英语
关键词[WOS]	AGRICULTURAL SOILS ; CALCAREOUS SOILS ; COASTAL-PLAIN ; RISK ; LOSSES ; LAND ; SATURATION ; SORPTION ; WETLANDS ; INDEXES
研究领域[WOS]	Agriculture
WOS记录号	WOS:000761635700001
引用统计	被引频次：3[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/133337/37636
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
通讯作者	Xu, Gang
作者单位	1.Qufu Normal Univ, Sch Geog & Tourism, Rizhao, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xu, Gang,Yue, Mengyu,Song, Jiawei,et al. Development of soil phosphorus storage capacity for phosphorus retention/release assessment in neutral or alkaline soils[J]. PLANT SOIL AND ENVIRONMENT,2022:9.
APA	Xu, Gang,Yue, Mengyu,Song, Jiawei,Chen, Xiaobing,&Ren, Yuxuan.(2022).Development of soil phosphorus storage capacity for phosphorus retention/release assessment in neutral or alkaline soils.PLANT SOIL AND ENVIRONMENT,9.
MLA	Xu, Gang,et al."Development of soil phosphorus storage capacity for phosphorus retention/release assessment in neutral or alkaline soils".PLANT SOIL AND ENVIRONMENT (2022):9.