Amelioration of saline-sodic soil with mildly saline water in the Songnen Plain, northeast China
文献类型：期刊论文
| 作者 | Li, QS; Willardson, LS; Li, LX; Liu, CJ; Wu, LZ |
| 刊名 | SOIL USE AND MANAGEMENT
 |
| 出版日期 | 2004-12-01 |
| 卷号 | 20期号:4页码:439-443 |
| 关键词 | reclamation leaching schedule soil salinity soil sodicity crop yield |
| ISSN号 | 0266-0032 |
| DOI | 10.1079/SUM2004282 |
| 通讯作者 | Li, QS(liqusheng@21cn.com) |
| 英文摘要 | The saline-sodic soils of the dryland Songnen Plain in northeast China are only slowly permeable to fresh water because of their large content of montmorillinite clay and sodium bicarbonate. Use of slightly saline groundwater containing adequate dissolved calcium and magnesium for leaching and reclamation can potentially prevent dispersion of the clay soil particles during treatment. Amelioration was evaluated using shallow, mildly saline groundwater to irrigate sorghum-corn rotations in a two-year field experiment. After two growing seasons during which a total of 400 mm of leaching water was applied, in addition to some supplemental irrigation water, the average electrical conductivity (ECe) of the top 1.2 m of the soil profile decreased from 14.5+/-3.5 to 2.7+/-0.2 dS m(-1), and the sodium absorption ratio (SAR(e)) decreased from 35.3+/-4.1 to 10.1+/-2.5 (meq L-1)(0.5). The soil physical properties were improved: infiltration rate with mildly saline groundwater increased from 12.1 to 42 mm h(-1). Salinity changes in the top 1.2 m of soil layers after 700 mm of leaching produced no further improvement. Crop yields produced on plots undergoing amelioration increased by 64-562% compared with the rainfed control. The improved soil conditions after leaching resulted in 59-548% greater crop yields. |
| 收录类别 | SCI |
| WOS关键词 | STRATEGIES |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000226296400010 |
| 出版者 | C A B I PUBLISHING |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558441 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Li, QS |
| 作者单位 | 1.JiNan Univ, Dept Environm Engn, Guangzhou 510632, Peoples R China 2.Utah State Univ, Dept Biol & Irrigat Engn, Logan, UT 84322 USA 3.Chinese Acad Sci, NE Inst Geog & Agr Ecol, Changchun 130012, Peoples R China 4.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, QS,Willardson, LS,Li, LX,et al. Amelioration of saline-sodic soil with mildly saline water in the Songnen Plain, northeast China[J]. SOIL USE AND MANAGEMENT,2004,20(4):439-443. |
| APA | Li, QS,Willardson, LS,Li, LX,Liu, CJ,&Wu, LZ.(2004).Amelioration of saline-sodic soil with mildly saline water in the Songnen Plain, northeast China.SOIL USE AND MANAGEMENT,20(4),439-443. |
| MLA | Li, QS,et al."Amelioration of saline-sodic soil with mildly saline water in the Songnen Plain, northeast China".SOIL USE AND MANAGEMENT 20.4(2004):439-443. |
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来源：南京土壤研究所
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