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首页> 外文期刊>Fresenius Environmental Bulletin >IDENTIFICATION OF PHOSPHORUS-SENSITIVE REGIONS USING FIELD DATA, REMOTE SENSING IMAGERY AND KRIGING TECHNIQUES TO MITIGATE OVERUSE OF FERTILIZER IN A NORTHWESTERN TOWN OF TURKEY
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IDENTIFICATION OF PHOSPHORUS-SENSITIVE REGIONS USING FIELD DATA, REMOTE SENSING IMAGERY AND KRIGING TECHNIQUES TO MITIGATE OVERUSE OF FERTILIZER IN A NORTHWESTERN TOWN OF TURKEY

机译：利用田间数据，遥感影像和Kriging技术识别磷敏感区，以减轻土耳其西北城镇化肥的过度使用

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摘要

As part of its environmental compliance program required for joining the European Union, Turkey must deal with the problem of excess runoff of nutrients from both chemical fertilizers and manure into water. Manure and other fertilizers cause eutrophication and other water quality problems. It had been thought that phosphorus, which is in manure as well as chemical fertilizers, was so strongly bound to soil particles that it did not readily leach into water. However, recent studies show that phosphorus is mobile and so poses a threat to water quality. For this study, soil testing for phosphorus was performed in 832 fields within a 133,000 ha area in the Canakkale province of northwest Turkey. The region is dominated by crop fields, and also a large number of livestock. Soils were classified into five categories with respect to phosphorus sensitivity. Satellite imagery was used to calculate the size of each class. Over 70,000 hectares of cropland were classified as phosphorus-sensitive due to overapplication of chemical fertilizers. Chemical fertilizer applications increased not only the phosphorus values, but also the zinc content of the soil.
机译：作为加入欧盟所需的环境合规计划的一部分，土耳其必须处理化肥和粪便中的养分流失过多的问题。肥料和其他肥料会引起富营养化和其他水质问题。曾经有人认为，肥料中的磷以及化肥都与土壤颗粒紧密结合，以至于不易渗入水中。但是，最近的研究表明磷是可移动的，因此对水质构成威胁。对于这项研究，在土耳其西北部恰纳卡莱省133,000公顷的面积内的832个田中对磷进行了土壤测试。该地区以农田为主，还有大量牲畜。就磷敏感性而言，土壤分为五类。卫星图像用于计算每个类别的大小。由于过度使用化肥，超过70,000公顷农田被归为对磷敏感的地区。化肥的施用不仅增加了土壤的磷含量，而且还增加了土壤中的锌含量。

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