| 天津市富钾土地资源评价 |
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| 引用本文： | 曹淑萍,程绪江.天津市富钾土地资源评价[J].中国农业资源与区划,2011,32(6):66-70. |
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| 作者姓名： | 曹淑萍 程绪江 |
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| 作者单位： | 天津市地质调查研究院,天津,300191 |
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| 基金项目： | 资料来源：天津市水土环境地球化学调查，津城调任[2005]006 |
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| 摘 要： | 天津市水土环境地球化学调查发现了大面积的富钾土地资源,该文利用调查数据圈定富钾土地资源区,并对其储量进行估算,目的是为保护和合理利用富钾土地资源提供科学依据.依据土壤全钾含量大于2.5％圈定了8个富钾土地资源区,主要分布在宁河-汉沽地区,其次分布在蓟县山区.蓟县富钾土地由富钾岩石风化形成,宁河-汉沽富钾土地形成与退海古泻湖有关.富钾土地资源区总面积约1303.17km2,耕植层(0～20cm)和0～100cm土体中估算全钾总储量分别为8 638.36t和47 327.65t.
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| 关 键 词： | 富钾 成因 钾储量 土地利用建议 |
| 收稿时间： | 2010/7/21 0:00:00 |
ASSESSMENT OF POTASSIUM-RICH LAND RESOURCES IN TIANJIN |
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| Cao Shuping and Cheng Xujiang.ASSESSMENT OF POTASSIUM-RICH LAND RESOURCES IN TIANJIN[J].Journal of China Agricultural Resources and Regional Planning,2011,32(6):66-70. |
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| Authors: | Cao Shuping and Cheng Xujiang |
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| Institution: | (Tianjin geologic institute,Tianjin 300191) |
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| Abstract: | A present survey found that there were large areas of potassium-rich land resources in Tianjin.This paper delineated some potassium-rich land resources using surveying data and estimated the storage,aiming to provide scientific basis for protecting and rationally utilizing the land resources.The potassium-rich land resources can be divided into 8 areas according to the potassium content >2.5%,which mainly distributed in Jixian and Ninghe-Hangu.The potassium-rich lands in Jixian were shaped due to the rock decay,while the lands in Ninghe-Hangu were related to the ancient lagoon.The total area of potassium-rich land was 1303.17km2,and the storage of the soil potassium content in the depth of 20cm and 100cm were about 8638.36t and 47327.65t,respectively. |
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| Keywords: | Keywords abundant potassium genetic analysis potassium reserves suggestions |
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