|
ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
|
|
|
A
|
0-7
|
Dark reddish brown (5YR3/2-3) gravelly loam; slightly sticky, slightly plastic; many very fine and fine tubular and interstitial, few medium interstitial pores; many small hard subrounded Fe/Mn concretion (about 30% by volume); many very fine and fine roots, few medium roots; neutral (field pH 7.0); clear, slightly wavy boundary. |
|
|
|
Bt1
|
7-24
|
Dark reddish brown (2.5YR3/4); very gravelly clay loam to clay; sticky, plastic; many very fine and fine tubular and interstitial, few medium interstitial pores; many small hard subrounded and irregular weathered basalt (about 70%) one large decayed root; many very fine, fine and few large roots; medium acid (field pH 6.0); clear, slightly wavy boundary. |
|
|
|
Bt2
|
24-74
|
Dark reddish brown (2.5YR3/4); very gravelly clay; sticky, plastic; many very fine, fine tubular and interstitial, few medium interstitial pores; few fine (1.0-2.0 cm) animal holes; many small and large hard subrounded and irregular weathered basalt (about 80%) common pressure faces, many very fine and fine roots, few medium roots, few medium decayed roots; very strongly acid (field pH 4.5-5.0); gradual, wavy boundary. |
|
|
|
Bt3
|
74-121
|
Dark reddish brown (2.5YR3/4); very gravelly clay; sticky and plastic; many very fine, few fine tubular and interstitial, few medium interstitial pores; few pressure faces; many small hard subrounded and irregular weathered basalt (about 80% by volume); few very fine and fine roots; few fine decayed roots; very strongly acid to strong acid (field pH 5.0). |
|
|
|
|
|
