Development of soil phosphorus storage capacity for phosphorus retention/release assessment in neutral or alkaline soils
Xu, Gang1,2; Yue, Mengyu1; Song, Jiawei2,3; Chen, Xiaobing2; Ren, Yuxuan1
发表期刊PLANT SOIL AND ENVIRONMENT
ISSN1214-1178
2022-02-24
页码9
关键词macronutrient accumulation environmental risk external phosphorus pollution land uses
DOI10.17221/482/2021-PSE
通讯作者Xu, Gang(gxu126@foxmail.com)
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/133337/31496
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.
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