Page 179 - การศึกษาลักษณะและสมบัติของดินที่มีวัตถุต้นกำเนิดจากหินแกรนิตบริเวณจังหวัดอุทัยธานี
P. 179
ห้องสมุดกรมพัฒนาที่ดิน
141
คําอธิบายหนาตัดดิน 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.

