Page 175 - การศึกษาลักษณะและสมบัติของดินที่มีวัตถุต้นกำเนิดจากหินแกรนิตบริเวณจังหวัดอุทัยธานี
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ห้องสมุดกรมพัฒนาที่ดิน
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                                      อธิบายหนาตัดดิน พีดอน 3 ชุดดินลานสัก (Lan Suk series)
                       I  Information on the site

                       Profile symbol                      : Pedon 3
                       Soil name                           : Lan Suk series
                       Classification                      : Coarse-loamy, mixed, semiactive, isohyperthermic
                                                           Typic Paleustalfs
                       Date of examination                 : February 19, 2014
                       Described by                        : Danai Sanchanthong, Krishna Rammasoot,
                                                           Pochara Ariyaskul and Meta Srithongkhum
                       Location                            : Ban Pong Samsip, Tumbon Rabum,
                                                             Amphoe Lan Suk, Changwat Uthai Thani
                       Elevation                           : Approximately 225 m (MSL)
                       Map sheet number                    : 4839 I  Coordination: 47P 0547013E, 1709253N
                       Landform
                            1. Physiographic position      : hills
                            2. Surrounding land form       : Undulating
                            3. Slope on which profile site  : 6 %
                       Land use                            : Sweet corn and cassava
                       Annual rainfall                     : Approximately 1,141 mm
                                                                               ๐
                       Mean temperature                    : Approximately 29.5  C
                       Climate                             : Tropical savanna
                       II  General information on the soil
                       Parent material                     : Residuum and colluviums from granite
                       Drainage                            : Well drained
                       Permeability                        : Moderately rapid
                       Runoff                              : Medium
                       Depth of ground water               : -
                       II  Profile description

                          Horizon  Depth                               Description
                                      (cm)

                          Ap          0-12       Brown  (7.5YR  4/3);  sandy  loam;  weak  fine  subangular
                                                 blocky structure; soft, very friable, non sticky and non
                                                 plastic; many very fine interstitial pores; common fine to
                                                 coarse  roots;  moderately  acid  (field  pH  6.0);  clear,
                                                 smooth boundary to BA.
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