Page 175 - การศึกษาลักษณะและสมบัติของดินที่มีวัตถุต้นกำเนิดจากหินแกรนิตบริเวณจังหวัดอุทัยธานี
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ห้องสมุดกรมพัฒนาที่ดิน
137
อธิบายหนาตัดดิน 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.

