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The soils of Abu Dhabi Emirate were mapped on the basis of observations at more than 22,000 sites in combination with satellite imagery interpretation. The survey was conducted as a field investigation between May 2006 and September 2007. Field techniques, soil classification, nomenclature and interpretation were based on the scientific and technical standards of the United States Department of Agriculture-Natural Resources Conservation Service (USDA-NRCS). The survey was undertaken as a fourth order survey at a scale of 1:100,000, supported by laboratory data. Soil map units are a collection of areas defined and named the same according to the relative proportion of the soil components that they contain. Map units are named according to the dominant soil or contrasting soils which typically account for at least 50% of the extent of the map unit. The identification and allocation of soil components to map units evolved through a number of iterations. In finalizing the component soils to an acceptable number, consideration was given to maintaining the diversity of soil types within the map unit, ensuring that soils with a greater occurrence throughout the Emirate were adequately represented, and maintaining the overall nature of individual map units. || تم رسم خريطة لتربة إمارة أبوظبي بناءً على الملاحظات في أكثر من 22,000 موقع، مع دمج تفسير صور الأقمار الصناعية. تم إجراء المسح كتحقيق ميداني بين مايو 2006 وسبتمبر 2007. تم استناد تقنيات الحقل، وتصنيف التربة، والمصطلحات، والتفسير إلى المعايير العلمية والفنية لوزارة الزراعة الأمريكية - خدمة الحفاظ على الموارد الطبيعية (USDA-NRCS). تم تنفيذ المسح كمسح من الدرجة الرابعة بمقياس 1:100,000، مدعومًا ببيانات مختبرية. وحدات خريطة التربة هي مجموعة من المناطق المحددة والمُسماة بنفس الطريقة وفقًا للنسبة النسبية لمكونات التربة التي تحتويها. يتم تسمية الوحدات الخرائطية وفقًا للتربة السائدة أو المتباينة التي تمثل عادةً على الأقل 50% من امتداد الوحدة الخرائطية. تطورت عملية التعرف على مكونات التربة وتخصيصها لوحدات الخريطة عبر عدة تكرارات. عند الانتهاء من تخصيص مكونات التربة لعدد مقبول، تم النظر في الحفاظ على تنوع أنواع التربة داخل الوحدة الخرائطية، وضمان تمثيل التربة التي تنتشر بشكل أكبر عبر الإمارة بشكل كافٍ، والحفاظ على الطبيعة العامة للوحدات الخرائطية الفردية.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 4326, "latestWkid": 4326, "xyTolerance": 8.98315284119521E-9, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -400, "falseY": -400, "xyUnits": 9.999999999999999E8, "falseZ": 0, "zUnits": 1, "falseM": 0, "mUnits": 1 }, "copyrightText": "Created by Environment Agency Abu Dhabi as part of the Abu Dhabi Soil Survey project. 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