Jornada Experimental Range NEON (JORN) Soil Descriptions

A--0 to 18 centimeters (0.0 to 7.1 inches); brown (7.5YR 5/4) crushed sandy loam, brown (7.5YR 4/4) crushed, moist; 65 percent sand; 25 percent silt; 10 percent clay; weak thick platy parts to weak medium subangular blocky, and weak thick platy parts to moderate fine subangular blocky structure; soft, very friable, slightly sticky, nonplastic; low excavation difficulty; common very fine roots throughout and common medium roots throughout and many fine roots throughout; common very fine irregular and common very fine tubular pores; noneffervescent, by HCl, 1 normal; neutral, pH 7.1, pH meter; clear smooth boundary. Lab sample # 13N03593

Bw--18 to 46 centimeters (7.1 to 18.1 inches); strong brown (7.5YR 5/6) crushed sandy loam, strong brown (7.5YR 4/6) crushed, moist; 65 percent sand; 27 percent silt; 8 percent clay; weak medium subangular blocky parts to moderate fine subangular blocky structure; soft, very friable, slightly sticky, nonplastic; low excavation difficulty; common very fine roots throughout; common very fine irregular and common fine tubular pores; carbonate, finely disseminated throughout; slight effervescence, by HCl, 1 normal; slightly alkaline, pH 7.7, pH meter; gradual smooth boundary. Lab sample # 13N03594

2Bk--46 to 78 centimeters (18.1 to 30.7 inches); strong brown (7.5YR 5/6) crushed and strong brown (7.5YR 4/6) crushed sandy clay loam; 70 percent sand; 8 percent silt; 22 percent clay; moderate medium subangular blocky structure; slightly hard, friable, moderately sticky, slightly plastic; moderate excavation difficulty; common very fine roots throughout and few medium roots throughout; common very fine irregular and common very fine tubular pores; carbonate, finely disseminated throughout and 10 percent fine prominent threadlike 7.5YR 9.5/1), dry, carbonate masses with clear boundaries lining pores; 1 percent nonflat subrounded indurated 2 to 75-millimeter mixed rock fragments; strong effervescence, by HCl, 1 normal; slightly alkaline, pH 7.8, pH meter; abrupt smooth boundary. Lab sample # 13N03595

2Bkkm--78 to 110 centimeters (30.7 to 43.3 inches); white (7.5YR 9.5/1) broken face cemented material, pale pinkish white (7.5YR 9/2) broken face, moist; indurated by carbonates; very high excavation difficulty; common very fine roots in cracks and common medium roots in cracks; 90 percent prominent 7.5YR 9.5/1), dry, carbonate coats on rock fragments; carbonate, finely disseminated throughout and 70 percent extremely coarse prominent irregular indurated cemented 7.5YR 9.5/1), dry, carbonate nodules with sharp boundaries in matrix; 6 percent nonflat subrounded indurated 2 to 75-millimeter mixed rock fragments; violent effervescence, by HCl, 1 normal; moderately alkaline, pH 7.9, pH meter; clear smooth boundary. Lab sample # 13N03596

2Bkk1--110 to 173 centimeters (43.3 to 68.1 inches); white (7.5YR 9.5/1) broken face sandy loam, pale pinkish white (7.5YR 9/2) broken face, moist; 60 percent sand; 34 percent silt; 6 percent clay; moderate medium subangular blocky, and weak fine subangular blocky structure; extremely hard, very rigid, slightly sticky, nonplastic; high excavation difficulty; many very fine roots throughout and common medium roots throughout and many fine roots throughout and common coarse roots throughout; many very fine irregular pores; 90 percent prominent 7.5YR 9.5/1), dry, carbonate coats on rock fragments; 50 percent extremely coarse prominent irregular indurated cemented 7.5YR 9.5/1), dry, carbonate nodules with sharp boundaries in matrix; 2 percent nonflat subrounded indurated 2 to 75-millimeter mixed rock fragments; violent effervescence, by HCl, 1 normal; moderately alkaline, pH 7.9, pH meter; gradual smooth boundary. Lab sample # 13N03597

2Bkk2--173 to 200 centimeters (68.1 to 78.7 inches); white (7.5YR 9/1) broken face sandy loam, pale pinkish white (7.5YR 9/2) broken face, moist; 65 percent sand; 27 percent silt; 8 percent clay; moderate medium subangular blocky, and weak fine subangular blocky structure; extremely hard, very rigid, slightly sticky, nonplastic; high excavation difficulty; many very fine roots throughout and common fine roots throughout; many very fine irregular pores; 90 percent prominent carbonate coats on rock fragments; carbonate, finely disseminated throughout and 35 percent extremely coarse prominent irregular indurated cemented 7.5YR 9/1), dry, carbonate nodules with sharp boundaries in matrix; 1 percent nonflat subrounded indurated 2 to 75-millimeter mixed rock fragments; violent effervescence, by HCl, 1 normal; slightly alkaline, pH 7.7, pH meter. Lab sample # 13N03598