| 渤海湾风暴潮倒灌对沿岸农田土壤盐分的影响 |
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| 引用本文： | 张国明,顾卫,吴之正,史培军.渤海湾风暴潮倒灌对沿岸农田土壤盐分的影响[J].地球科学进展,2006,21(2):157-160. |
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| 作者姓名： | 张国明 顾卫 吴之正 史培军 |
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| 作者单位： | 1. 北京师范大学资源学院灾害与公共安全研究所,北京,100875;北京师范大学环境演变与自然灾害教育部重点实验室,北京,100875
2. 北京师范大学地理学与遥感科学学院,北京,100875 |
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| 基金项目： | 国家科技攻关项目;国家高技术研究发展计划(863计划) |
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| 摘 要： | 2003年10月11日渤海湾沧州范围内发生特大温带风暴潮，其摧毁沿岸养殖场后涌向沿海农田区域，海水倒灌农田浸泡持续时间达10~15 d不等。2004年5月3日，对浸泡农田土壤采样进行盐分分析，结果表明，经海水浸泡后农田全部盐碱化，且盐分主要聚集在土壤表层；46%的土地出现碱斑，0~90 cm土体内土壤含盐量较浸泡前普遍增加，0~10 cm表层含盐量高达1.134%；浸泡后0~25 cm土体内含盐离子组成较之浸泡前有显著变化，Cl－含量增加了33.3%，Na++K+含量增加了39.4%；降雨淋溶可以使土壤盐分含量明显下降，且为主要影响因素；经过一年后，土壤盐分含量降低到0.308%，而两年后，受灾土壤盐分含量降低到0.265%左右，可以种植耐盐性较强的作物。
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| 关 键 词： | 风暴潮 土壤盐分 影响 农田 |
| 文章编号： | 1001-8166（2006）02-0157-04 |
| 收稿时间： | 2005-12-20 |
| 修稿时间： | 2006-01-16 |
The Effect of Storm Surge on Soil Salt Content of the Farmlands along the Bohai Bay in China |
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| ZHANG Guo-ming,GU Wei,WU Zhi-zheng,SHI Pei-jun.The Effect of Storm Surge on Soil Salt Content of the Farmlands along the Bohai Bay in China[J].Advance in Earth Sciences,2006,21(2):157-160. |
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| Authors: | ZHANG Guo-ming GU Wei WU Zhi-zheng SHI Pei-jun |
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| Institution: | 1.Institute of Disaster and Public Security, College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China;2.Key Laboratory of Environmental Change and Natural Disasters,Ministry of Education, Beijing Normal University,Beijing 100875,China;3. College of Geography and Remote Sensing Science, Beijing Normal University,Beijing 100875, China |
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| Abstract: | On October 11,2003,a huge storm surge attacked the Changzhou region in the Bohai bay of China.The surge smashed the shrimp breeding fields and flooded the coastal farms.These farms were inundated for a period from 10 days to 15 days.On May 3,2004,a salinity analysis was carried out for the soil samples from the seawater-soaked farms.Result shows that these farms had all been salinized: 46% of the lands had alkali pots;the content of salts in the soil(0~90cm) had increased evidently while the salts mainly concentrated at the surface layer(0~10cm),where the salt content was as high as 1.134%;constitutes of saline ions at the 0~25cm layer also changed greatly: the Cl~(-)increased for 33.3%,while the Na~(+)and K~(+) altogether increased for 39.4%.It is found that rainfall is an effective and also primary way to desalinize these soils.Two years after the storm surge,salt content of the affected soils had dropped to around 0.265%,at which level some salt-enduring crops can be grown. |
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| Keywords: | Storm surge Salt content Effect Farmlands |
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