...营养元素; 分布特征; 控制因素; 表层沉积物; 长江口 中图分类号: P736 4 文献标识码: A 文章编号: 1007 6336( 2005) 03 0001 0[gap=1195]Key words:nut rient ; dist ribution charact erist ics; cont rolling f act ors; surf ace sediment ; C..
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Nut rient balance 营养平衡
There is semi-variance structure in soil nutrient status.
平衡施肥竹林土壤养分存在半方差结构。
参考来源 - 毛竹林平衡施肥及营养管理研究Sulphur is an important nutrient in crop production.
硫是作物生长的重要营养元素之一。
参考来源 - 贵州省耕地土壤硫素调查及硫肥效益研究The DO concentration distribution of is different to nutrient. The DO distribution is higher in outer bay and center bay.
与营养盐分布不同,溶解氧浓度湾外高于湾内,湾中央高于沿岸。
参考来源 - 海湾入海污染物总量控制方法与应用研究Sludge composting is one sludge treatment and disposal method which is suitable for Chinese national conditions,because the organic matters,N,P and other nutrient elements in sludge can be used by the crops after composting.
污泥堆肥处理后其有机质和N、P等营养元素可被农作物利用,促进作物增产,被认为是适合中国国情的污泥处理与处置方式。
参考来源 - 城市污泥堆肥处理及其产业化发展中的几个关键问题Microorganisms are receiving increasing recognition for their essential ecosystem functions,such as biogeochemical cycling,sustaining soil nutrient status,as well as monitoring environmental quality.
在土壤生态系统中,土壤微生物担当了生物地球化学循环、土壤营养物质运转、环境污染净化等重要的生态功能。
参考来源 - 污水和污水污泥资源化对土壤微生物生态效应的影响ObjectiveTo understand the status of nutrient supplements adding to infants aged 4～12 months in rural area of Shunyi District of Beijing City.
目的了解北京市顺义区农村4～12月龄婴儿营养素补充剂现状。
参考来源 - 北京市顺义区农村4～12月龄婴幼儿营养素补充剂现状调查Objective To analyze the nutrient constituents of the gonad from Hemicentrotus pulcherrimus. The results could provide a theoretical basis for the development of the H. pulcherrimus.
目的通过对采自黄海海域的马粪海胆生殖腺的营养成分分析,为马粪海胆资源的开发利用提供理论依据。
参考来源 - 马粪海胆生殖腺营养成分的含量测定·2,447,543篇论文数据，部分数据来源于NoteExpress
N-COUNT Nutrients are substances that help plants and animals to grow. 营养物
In her first book she explained the role of vegetable fibres, vitamins, minerals, and other essential nutrients.
在她第一本书中，她解释了植物纤维、维生素、矿物质和其他重要营养物质的作用。
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