o pyright (C) 2000, Galt Technology Inc. TIANDCSK wwwwallpaperworld.com Chapter 1 Soil Mineral Material
Chapter 1 Soil Mineral Material
Section 1 The chemical and mineral constitutes of soil parent minerals The chemical constitutes of soil parent minerals Soil 0sAFCNKM 1 ■其它元素
Section 1 The chemical and mineral constitutes of soil parent minerals 一、The chemical constitutes of soil parent minerals Soil
Mineral material 38%,(95%) Organic matter 12%,(5%) Solution (15-35% Air (15-35%)
Mineral Material 38%，(95%) Organic matter 12%，(5%) Solution (15-35%) Air (15-35%)
表1-1地壳和土壤的平均化学组成(重量%(维诺格拉多夫,1950、1962) 元素 地壳中 土壤中 地壳中 土壤中 47.0 49.0 0.10 0.085 S 29.0 33.0 0.093 Al 8.05 7.13 0.09 0.085 4.65 3.80 0.023 2.0 2.96 1.37 0.01 0.1 1.67 0.002 0.005 0.005 Mg 0.60 0.003 0.0008 0.45 0.40 0.003 0.001 (0.15) 0.003 0.0003 根据克拉克等(1924)、费尔斯曼(1939)和泰勒(1964)的估计,地壳的化学元素组成与此表稍有不同,但总 的趋势是一致的
表 1-1 地壳和土壤的平均化学组成（重量%） （维诺格拉多夫，1950、1962） * 元 素 地壳中 土壤中 元 素 地壳中 土壤中 O S i A l F e C a N a K M g T i H 47.0 29.0 8.05 4.65 2.96 2.50 2.50 1.37 0.45 (0.15) 49.0 33.0 7.13 3.80 1.37 1.67 1.36 0.60 0.40 ? M n P S C N C u Z n C o B M o 0.10 0.093 0.09 0.023 0.01 0.01 0.005 0.003 0.003 0.003 0.085 0.08 0.085 2.0 0.1 0.002 0.005 0.0008 0.001 0.0003 * 根据克拉克等(1924)、费尔斯曼(1939)和泰勒(1964)的估计,地壳的化学元素组成与此表稍有不同,但总 的趋势是一致的
Distributive law (1) The oxygen(O) and silicon( Si) are main two elements in the earth crust. The second elements are iron and aluminum. Four elements occupy about 88.7% weight of the le earth crust (2) The essential elements for plant growing are very low and distribute unbalance in earth crust
Distributive law （1）The oxygen( O) and silicon( Si) are main two elements in the earth crust. The second elements are iron and aluminum. Four elements occupy about 88.7% weight of the earth crust. （2）The essential elements for plant growing are very low and distribute unbalance in earth crust