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城市土壤
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城市土壤
Encyclopedia
理学
城市生态环境
释
urban soil
城市土壤
出现在城区或郊区,由于土地的混合、填埋或污染而形成的,非农业的、人为的表层厚度大于50厘米的土壤。城市土壤的物质组成、人类活动规模和强度均与周边农业或森林地区土壤显著不同。
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fork
fork brace piece under the ridge purlin
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