Environmental Science A Study of interrelationships Unite 6 Soil and its uses
Unite 6 Unite 6 Soil and its Uses Soil and its Uses Environmental Science Environmental Science A Study of interrelationships A Study of interrelationships
Useful Words and Expressions Crust-地壳 Mantle-地幔 Lithosphere-岩石圈 Asthenosphere-岩流圈 Plate Tectonics-板块构造学说 Weathering-风化 Hydrolysis-水解 ava-熔岩 Parent materia-原生材料
Useful Words and Expressions • Crust –地壳 • Mantle –地幔 • Lithosphere – 岩石圈 • Asthenosphere – 岩流圈 • Plate Tectonics – 板块构造学说 • Weathering – 风化 • Hydrolysis – 水解 • Lava –熔岩 • Parent material –原生材料
Useful Words and Expressions Humus一腐殖质 Soil profile-土壤剖面 Soil texture-土壤构成 Soil structure-土壤结构 Soil erosion-土壤侵蚀 Contour farming-仿地形耕种 Strip farming-间耕 Soil conservation practices-水土保持
Useful Words and Expressions • Humus – 腐殖质 • Soil profile – 土壤剖面 • Soil texture – 土壤构成 • Soil structure – 土壤结构 • Soil erosion – 土壤侵蚀 • Contour farming – 仿地形耕种 • Strip farming – 间耕 • Soil conservation practices –水土保持
Geologic Processes(地质学过程) Crust(地壳)- Extremely thin, less-dense soil Mantle(地幔)- Makes up majority of earth Oceanic crust Uppermost mantle Inner portion is sAid km是 Asthenosphere (part of mantle) 200km core mantle continues downward Lithosphere:岩石圈 ter portion Capable of flow Asthenosphere:岩流圈 (the plastic louter layer
Geologic Processes (地质学过程 ) • Crust (地壳） - Extremely thin, less-dense soil. • Mantle（地幔） - Makes up majority of earth. Lithosphere: 岩石圈 Asthenosphere: 岩流圈 Surrounds core of iron；Inner portion is solid Outer portion capable of flow (the plastic outer layer )
Geologic Processes Plate Tectonics(板块构造学说)- is the concept that the outer surface of the Earth consist of large plates composed of the crust and the outer portion of the mantle ( lithosphere and that these plates are slowly moving over the surface of the liquid outer mantle Heat from earth core causes movement , Plates are pulling apart in some areas, and colliding in others due to the fact that the movements of the plates on this plastic outer layer of the mantle are independent of each other Building processes counteracted by processes tending to tear down land
– Heat from earth core causes movement. Plates are pulling apart in some areas, and colliding in others due to the fact that the movements of the plates on this plastic outer layer of the mantle are independent of each other. Geologic Processes • Plate Tectonics（板块构造学说） - is the concept that the outer surface of the Earth consist of large plates composed of the crust and the outer portion of the mantle （lithosphere ） and that these plates are slowly moving over the surface of the liquid outer mantle. – Building processes counteracted by processes tending to tear down land