Page 179 - การศึกษาลักษณะและสมบัติของดินที่มีวัตถุต้นกำเนิดจากหินแกรนิตบริเวณจังหวัดอุทัยธานี
P. 179

ห้องสมุดกรมพัฒนาที่ดิน
                                                                                                       141







                                   คําอธิบายหนาตัดดิน พีดอน 5 ชุดดินหนองฉาง (Nong Chang Series)
                       I  Information on the site
                       Profile symbol                      : Pedon 5
                       Soil name                           : Nong Chang series
                       Classification                      : Fine-loamy, mixed, semiactive, isohyperthermic
                                                            Aeric  Endoaqualfs
                       Date of examination                 : February 21, 2016
                       Described by                        : Danai Sanchanthong, Krishna Rammasoot,
                                                           Pochara Ariyaskul and Meta Srithongkhum
                       Location                            : Near Thap Salao canal, Tambon Uthai Kao,
                                                             Amphoe Nong Chang, Changwat Uthaithani
                       Elevation                           : Approximately 66 m (MSL)
                       Map sheet number                    : 4939 IV Coordination: 47P 0556500E, 1703576N
                       Landform
                            1. Physiographic position      : Alluvium fan
                            2. Surrounding land form       : Nearly flat
                            3. Slope on which profile site  : 1 %
                       Land use                            : Paddy field
                       Annual rainfall                     : Approximately 1,141 mm
                                                                               ๐
                       Mean temperature                    : Approximately 29.5  C
                       Climate                             : Tropical savanna
                       II  General information on the soil
                       Parent material                     : Alluvium over alluvium from granite
                       Drainage                            : Somewhat poorly drained
                       Permeability                        : very slow
                       Runoff                              : slow
                       Depth of ground water               : 180 cm
                       II  Profile description

                           Horizon  Depth                                Description
                                      (cm)

                           Apg        0-12        Mixed  dark  gray  (7.5YR  4/1)  50%  and  brown  (7.5YR  4/3)
                                                  50% clay loam; many fine distinct dark brown (7.5YR 3/4)
                                                  mottles;  moderate  medium  to  coarse  angular  blocky
                                                  structure;  very  friable,  slightly  sticky  and  slightly  plastic;
                                                  many  fine  dendritic  tubular  pores;  common  fine  roots;
                                                  slightly acid (field pH 6.5); clear, smooth boundary to Btg1.
   174   175   176   177   178   179   180   181   182   183   184