Environmental Chemistry

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4.2.2 • Mineral Components and Physicochemical Properties of Soil Particles Mineral Components The weatherability (抵抗风化的能力) of each type of mineral is different, thus the distribution of them in each particle classification differs. • Quarts has strong weatherability and thus commonly is in the form of coarse soil particle. • Mica and hornblende are weatherable and thus commonly in the form of relatively tiny soil particles.
• Chemical components • The smaller the soil particles, the more nutrients they contain (Ca, Mg, P, K, etc.)
Page 1 and 2: Environmental Chemistry Part 4 Pedo
Page 3 and 4: Fig 4.2 the general ratio of differ
Page 5 and 6: Fig 4.3b Typical layers found in a
Page 7 and 8: a lower horizon showing loss of mat
Page 9 and 10: three steps of rock weathering incl
Page 12 and 13: (2) Secondary minerals:most are new
Page 14 and 15: •Ledikite (or hydromica) a type o
Page 16 and 17: 2. Organic matter • Any of a clas
Page 18 and 19: (2) Humus: It’s dark, formless ma
Page 20 and 21: • Soil humus is a type of ampholy
Page 22 and 23: 4.1.2 soil moisture and soil soluti
Page 24 and 25: From the prospective of function re
Page 26 and 27: • Formation of water solution is
Page 28 and 29: • • 4.1.3 soil air Mixture of d
Page 30 and 31: 4.1.4 microorganism in soil • The
Page 32 and 33: • (3) fixation of nitrogen Nitrog
Page 34 and 35: 4.2 Particle-Size and Texture Class
Page 38 and 39: • Physicochemical properties and
Page 40 and 41: 4.2.3 classification of soil textur
Page 42 and 43: Standard for classification of soil
Page 44 and 45: • 表 4.8 Clay loam (壤土) comb

Environmental Chemistry

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