Accumulation characteristics, driving factors, and model prediction of cadmium in soil-highland barley system on the Tibetan Plateau
文献类型：期刊论文
| 作者 | Li, Ruxia1; Zhang, Ru; Yang, Yi1; Li, Yonghua |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2023-07-05 |
| 卷号 | 453页码:131407 |
| ISSN号 | 0304-3894 |
| 关键词 | Cadmium Highland barley Soil properties Geographic factors Tibetan Plateau |
| DOI | 10.1016/j.jhazmat.2023.131407 |
| 文献子类 | Article |
| 英文摘要 | Cadmium (Cd) poses major human health problems due to its high toxicity and organ bioaccumulation potential. This study collected and analysed 130 pairs of representative soil-highland barley samples on the Tibetan Plateau. The total soil Cd content (Cd-soil), available soil Cd (Cd-ava), and highland barley Cd contents (Cd-barley) ranged from 0.03 to 0.46 mg kg -1, 0.006-0.185 mg kg -1, and 0.57-13.62 mu g kg-1, with mean values of 0.19 +/- 0.01 mg kg -1, 0.045 +/- 0.003 mg kg-1, and 4.57 +/- 0.17 mu g kg-1, respectively. Redundancy analysis (RDA) demonstrated that geographic factors and soil properties explained 28.46% of the variation in Cd-soil and Cd-ava, and precipitation (14.6%) and pH (9.1%) were the dominant factors. The structural equation model (SEM) indicated that Cd-soil and Cd-ava were predominantly controlled by pH. Furthermore, the Cd-soil, Cd-ava, and Cd-barley with significantly different environmental conditions were more accurately predicted by condi-tional inference trees-multiple linear regression (CITs-MLR). When Cd-soil is more than 0.376 mg kg -1, Cd-ava obtains the most accurate predictor (R2 =0.64, P < 0.01). This study provides new scientific insight into un-derstanding the environmental biogeochemical nexus of Cd in the complex and fragile plateau environment and evaluating food security on the Tibetan Plateau under the self-sufficiency model of highland barley. |
| 学科主题 | Engineering ; Environmental Sciences & Ecology |
| WOS关键词 | HEAVY-METALS ; RICE ; CD ; AVAILABILITY ; BIOAVAILABILITY ; ENRICHMENT ; THRESHOLD ; POLLUTION ; BIOCHAR ; CHINA |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/193466]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Ruxia,Zhang, Ru,Yang, Yi,et al. Accumulation characteristics, driving factors, and model prediction of cadmium in soil-highland barley system on the Tibetan Plateau[J]. JOURNAL OF HAZARDOUS MATERIALS,2023,453:131407. |
| APA | Li, Ruxia,Zhang, Ru,Yang, Yi,&Li, Yonghua.(2023).Accumulation characteristics, driving factors, and model prediction of cadmium in soil-highland barley system on the Tibetan Plateau.JOURNAL OF HAZARDOUS MATERIALS,453,131407. |
| MLA | Li, Ruxia,et al."Accumulation characteristics, driving factors, and model prediction of cadmium in soil-highland barley system on the Tibetan Plateau".JOURNAL OF HAZARDOUS MATERIALS 453(2023):131407. |
入库方式： OAI收割
来源：地理科学与资源研究所
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