Soil Taxonomy & Classification – مرکز انتشارات توسعه علوم واحد مطالعات و تحقیقات https://www.copdsiran.org فعالیت فرهنگی - تحقیاتی و چاپ و نشرکتاب Wed, 11 Dec 2019 06:24:51 +0000 fa-IR hourly 1 https://wordpress.org/?v=6.4.2 https://www.copdsiran.org/wp-content/uploads/2018/09/cropped-Logo-1-32x32.jpg Soil Taxonomy & Classification – مرکز انتشارات توسعه علوم واحد مطالعات و تحقیقات https://www.copdsiran.org 32 32 رده بندی خاک – Environment USDA Soil Taxonomy: Soil Orders And Their Major Characteristics https://www.copdsiran.org/%d8%b1%d8%af%d9%87-%d8%a8%d9%86%d8%af%db%8c-%d8%ae%d8%a7%da%a9 https://www.copdsiran.org/%d8%b1%d8%af%d9%87-%d8%a8%d9%86%d8%af%db%8c-%d8%ae%d8%a7%da%a9#comments Thu, 20 Sep 2018 15:06:57 +0000 http://www.copdsiran.org/?p=420

USDA soil taxonomy (ST) developed by United States Department of Agriculture and the National Cooperative Soil Survey provides an elaborate classification of soil types according to several parameters (most commonly their properties) and in several levels: Order, Suborder, Great Group, Subgroup, Family, and Series. The classification was originally developed by Guy Donald Smith, former director of the U.S. Department of Agriculture’s soil survey investigations

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