Effect of rice straw mulching on migration and transportation of cd, cu, zn, and ni in surface runoff under simulated rainfall
文献类型：期刊论文
| 作者 | Rao, Zhong-Xiu1,2; Huang, Dao-You1; Zhu, Han-Hua1; Zhu, Qi-Hong1; Wang, Ji-Yu1; Luo, Zun-Chang3; Xu, Chao1; Shen, Xin1,2; He, Yan-Bing1,2 |
| 刊名 | Journal of soils and sediments
 |
| 出版日期 | 2016-08-01 |
| 卷号 | 16期号:8页码:2021-2029 |
| 关键词 | Heavy metals Migration Runoff Simulated rainfall Straw mulch |
| ISSN号 | 1439-0108 |
| DOI | 10.1007/s11368-016-1391-8 |
| 通讯作者 | Zhu, qi-hong(qhzhu@isa.ac.cn) |
| 英文摘要 | Heavy metals in runoff from contaminated land are becoming a major environmental problem. the presented paper considers the effects of mulching with rice straw on the migration and transportation of heavy metals from the soil into runoff under conditions of simulated rainfall. a simulated rainfall experiment was conducted to investigate the impact of rice straw mulching on emissions of sediment and heavy metals in runoff. the soil box was in 20-cm depth with a surface area of 1 m(2) and the slope was set to 10a degrees. the rainfall intensity was 90 mm h(-1)with a 60-min rainfall duration. the study involved samples with different treatments of rice straw mulching: bare soil (bs), low mulching (lm), and high mulching (hm), which had straw contents of 0, 200, and 500 g m(-2), respectively. the results showed that compared with bs, the cumulative runoff volume declined by 31 and 50 % and cumulative sediment declined significantly by 93 and 97 % for the lm and hm treatments, respectively. additionally, with an increase of straw mulching, the concentrations of total heavy metals in the lm and hm treatments declined by 79.90-82.84 and 81.90-90.07 %, and the cumulative total heavy metals decreased significantly by 86.5-87.0 and 90.3-94.6 %, respectively. particulate-bound heavy metals decreased by 88.1-88.9 % for the lm and 94.5-97.1 % for the hm. furthermore, cd, cu, zn, and ni migrated and transported mainly in particulate-bound form and had high enrichment in sediments. therefore, straw mulching on soil could reduce the sediment yields, and the loss of both particulate-bound heavy metals, especially for cd and ni, and cumulative total heavy metals in runoff. accordingly, it can be used as an effective measure to control heavy-metal-contaminated soil posing pollution risk to environment through surface runoff. |
| WOS关键词 | HEAVY-METALS ; AGRICULTURAL SOILS ; NITROGEN LOSS ; WATER ; SEDIMENTS ; INTENSITY ; CONSERVATION ; ENRICHMENT ; DYNAMICS ; SLOPE |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| WOS类目 | Environmental Sciences ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000379507100002 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374627 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhu, Qi-Hong |
| 作者单位 | 1.Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha, Hunan, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China 3.Hunan Soil & Fertilizer Inst, Changsha, Hunan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rao, Zhong-Xiu,Huang, Dao-You,Zhu, Han-Hua,et al. Effect of rice straw mulching on migration and transportation of cd, cu, zn, and ni in surface runoff under simulated rainfall[J]. Journal of soils and sediments,2016,16(8):2021-2029. |
| APA | Rao, Zhong-Xiu.,Huang, Dao-You.,Zhu, Han-Hua.,Zhu, Qi-Hong.,Wang, Ji-Yu.,...&He, Yan-Bing.(2016).Effect of rice straw mulching on migration and transportation of cd, cu, zn, and ni in surface runoff under simulated rainfall.Journal of soils and sediments,16(8),2021-2029. |
| MLA | Rao, Zhong-Xiu,et al."Effect of rice straw mulching on migration and transportation of cd, cu, zn, and ni in surface runoff under simulated rainfall".Journal of soils and sediments 16.8(2016):2021-2029. |
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来源：中国科学院大学
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