ѵԢͧشԹѴ


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ͪشԹ  :    Phayao (Pao)
 
 
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͸Ժª鹴Թ
A
0-6
Light brown (7.5YR6/4) dry, brown (7.5YR5/4) moist, fine sandy loam; weak medium and coarse subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; common fine and few medium roots; very strongly acid (field pH 5.0); clear, smooth boundary.
Bw
6-22
Reddish yellow (7.5YR7/6) dry, yellowish red (5YR4/8) moist, fine sandy clay loam; moderate coarse and medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; very few, very small hard, spherical ironstone nodules; common fine, very fine, few medium and coarse roots; very strongly acid (field pH 4.5); gradual, smooth boundary.
Bt1
22-36
Reddish yellow (5YR6/6) dry, yellowish red (5YR5/8) moist, sandy clay loam; moderate coarse and medium subangular blocky structure; hard, friable, sticky, plastic; very thin patchy clay coatings in tubular pores; very few, small, hard irregular and spherical ironstone nodules; few angular sandstone fragments; few fine and medium roots; very strongly acid (field pH 4.5); abrupt, wavy boundary.
2Bt2
36-110+
Yellowish red (5YR5/6) moist; very gravelly clay (gravels about 70-80% by volume); common reddish gray mottles; gravels consisting of angular iron-manganese coated quartz and sandstone; moderate medium and fine subangular blocky structure; firms, sticky, plastic; many clay films on gravel and ped faces; few fine, medium and coarse roots; strongly acid (field pH 5.5).