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Lime concretion black soil
释义
Lime concretion black soil
Encyclopedia
农学
砂姜黑土
释
Lime concretion black soil
砂姜黑土
发育在第四纪河湖相沉积物上的上部为暗色土层、下部为砂姜层的土壤。在中国土壤分类暂行草案(1978)中和中国第二次土壤普查(1988)时,列为半水成土纲砂姜黑土土类;在中国土类系统分类(1991)中,列为潮湿土土纲正常潮湿土亚纲砂姜黑土土类;在中国土壤系统分类(2001)中,划分成钙积潮湿变性土[注]和砂姜潮湿雏形土[注];在美国土壤系统分类和世界土壤资源参比基础(2014)中,部分相当于变性土[注]。曾称砂姜土、潜育褐土和青黑土。
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shipping network
shipping of collection
shipping parcels
shipping planning
shipping-safety support technology
ship pollutant receiving and processing system
ship pollution prevention
ship pollution sources
ship power distribution system
ship power system
ship propeller noise
ship propulsion appliances
ship radiated noise
ship register
ship repair and building facilities of fishing port
ship repairing & building facilities
ship reporting systems
ship routing
ship safety inspection
ship safety management system
ship's cargo handling gear
ship's deadweight
ship seaworthness
ship security
ship sewage treatment system
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