| 浙南地区耕地土壤酸化特点及控治对策 |
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| 引用本文： | 张丽君,吴学荣.浙南地区耕地土壤酸化特点及控治对策[J].现代农业科技,2020(12). |
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| 作者姓名： | 张丽君 吴学荣 |
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| 作者单位： | 平阳县农业农村局,平阳县农业农村局 |
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| 摘 要： | 为全面了解浙江南部地区耕地土壤酸化规律,为土壤酸化防治提供依据,利用近期获得的温州和丽水2个市20个县(市、区)4 443个测定数据,统计分析了浙南地区耕地土壤酸碱度现状及其区域分布特点。结果表明,浙南地区耕地主要由酸性(p H值介于4.5～5.5)和微酸性(p H值介于5.5～6.5)土壤组成,地貌与成土母质是控制这一地区耕地土壤酸度的关键因素,人为活动加剧了耕地土壤酸化。丘陵与河谷平原中土壤pH值低于5.5的耕地占比均在83%以上,土壤酸化问题非常严重;滨海平原耕地土壤以中性和微酸性为主。分析认为,浙南地区耕地土壤酸化治理重点是丘陵与河谷平原,需通过施用碱性物质进行降酸;滨海平原与水网平原应做好耕地土壤酸化的预防工作。
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| 关 键 词： | 浙南地区 耕地土壤 酸化 控治对策 |
| 收稿时间： | 2020/3/10 0:00:00 |
| 修稿时间： | 2020/3/10 0:00:00 |
Characteristics and Control Countermeasures of Soil Acidification in Cultivated Land ofthe Southern Zhejiang Province |
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| Abstract: | To fully understand the characteristics of soil acidification of cultivated land in southern Zhejiang province and provide basis for soil acidification control, total of 4443 measured data were obtained from 20 counties of Wenzhou and Lishui Cities for analyzing the status and geomorphic distribution characteristics of soil acidity and alkalinity of cultivated land in the southern Zhejiang province. The results showed that the cultivated land in the region was mainly composed of acidy soil (pH4.5-5.5) and slightly acidy soil (pH5.5-6.5). Landform and parent materials were the key factors to control the acidity of the cultivated land in the region, and human activities aggravate the acidification of the cultivated land. The proportion of the cultivated land with pH value lower than 5.5 in both hilly and valley plain was more than 83%, and soil acidification was very serious in the areas. The cultivated land in coastal plain was mainly neutral and slightly acidic. According to above results, the key areas for controlling soil acidification in the southern Zhejiang province were hilly area and river valley plain, in which acidity of the soils needed to be reduced by the application of alkaline substances. While the prevention work of soil acidification in the coastal plain and water network plain should be carried out. |
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| Keywords: | South Zhejiang province cultivated soil acidification control countermeasures |
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