气候变化领域集成服务门户(CCPortal): Phosphorus supply level is more important than wheat variety in safe utilization of cadmium-contaminated calcareous soil

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DOI	10.1016/j.jhazmat.2021.127224
	Phosphorus supply level is more important than wheat variety in safe utilization of cadmium-contaminated calcareous soil
	Ma, Shuangjin; Nan, Zhongren; Hu, Yahu; Chen, Shuai; Yang, Xiaoyan; Su, Jieqiong
通讯作者	Hu, YH (通讯作者)，Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China. ; Hu, YH (通讯作者)，Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Peoples R China.
发表日期	2022
ISSN	0304-3894
EISSN	1873-3336
卷号	424
英文摘要	Screening and cultivating crop varieties with low Cd accumulation is an effective way to safely utilize the Cd slightly contaminated soil. The characteristics and mechanism of Cd uptake by 13 wheat varieties in two calcareous soils with similar Cd contamination level but different P supply level were studied. The grain Cd concentration of almost all varieties in low-P soil was significantly higher than that in high-P soil and exceeded the maximum level of 0.2 mg kg-1 recommended by the Codex Alimentarius Commission. The pH value of low-P soil was significantly lower than that of high-P soil by 0.27 units, while leaf [Mn] (proxy for rhizosphere carboxylates) and the activities of soil alkaline phosphatase and phytase were significantly higher than those of high-P soil by 35%, 55%, and 286%, respectively. The exchangeable Cd concentration in low-P soil was 2.93 times higher than that in high-P soil, while the Cd concentration of oxides and organic species was significantly lower than that in high-P soil by 21% and 64%, respectively, collectively increasing soluble Cd concentration in low-P soil by 38%. In low-P calcareous soil, P mobilization induced the change of root-zone microenvironment, resulting in the mobilization of Cd.
关键词	TRITICUM-AESTIVUM L.METAL BIOAVAILABILITY CHEMICAL FORMS ARABLE SOILS ACCUMULATION CULTIVARS RHIZOSPHERE SPECIATION POPLAR SHOOT
英文关键词	Soil remediation; Trace metals; Nutrient management; Phosphorus; Calcareous soil
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000703551200005
来源期刊	JOURNAL OF HAZARDOUS MATERIALS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/255092
作者单位	[Ma, Shuangjin; Nan, Zhongren; Hu, Yahu; Chen, Shuai; Yang, Xiaoyan] Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China; [Ma, Shuangjin; Nan, Zhongren; Hu, Yahu; Chen, Shuai; Yang, Xiaoyan] Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Peoples R China; [Su, Jieqiong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Ma, Shuangjin,Nan, Zhongren,Hu, Yahu,et al. Phosphorus supply level is more important than wheat variety in safe utilization of cadmium-contaminated calcareous soil[J]. 中国科学院西北生态环境资源研究院,2022,424.
APA	Ma, Shuangjin,Nan, Zhongren,Hu, Yahu,Chen, Shuai,Yang, Xiaoyan,&Su, Jieqiong.(2022).Phosphorus supply level is more important than wheat variety in safe utilization of cadmium-contaminated calcareous soil.JOURNAL OF HAZARDOUS MATERIALS,424.
MLA	Ma, Shuangjin,et al."Phosphorus supply level is more important than wheat variety in safe utilization of cadmium-contaminated calcareous soil".JOURNAL OF HAZARDOUS MATERIALS 424(2022).