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首页> 外文期刊>Journal of the American Water Resources Association >NUTRIENT FLUXES IN PRECIPITATION, THROUGHFALL, AND STEMFLOW IN AN OAK‐HICKORY FOREST1
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NUTRIENT FLUXES IN PRECIPITATION, THROUGHFALL, AND STEMFLOW IN AN OAK‐HICKORY FOREST1

机译:橡树山核桃FOREST1中降水、流水和茎流中的养分通量

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ABSTRACT:Nutrient fluxes in precipitation, throughfall, and stemflow were studied in an oak‐hickory forest in southern Illinois for a three‐year period beginning in 1973. Nutrient inputs in these water related pathways were approximately one‐half those of litterfall; a major nutrient return mechanism. Considering these water carried nutrients (116 kg/ha/yr), 38 was contributed by precipitation, 35 by throughfall and approximately 27 by stemflow. Although the total nutrient input is only one‐half that of litterfall, the net impact on short‐term nutrient requirements is considerable because of their immediate availability. Nutrient inputs in litter represent a delayed return mechanism because of the relatively slow decompositio
机译:摘要: 从 1973 年开始,在伊利诺伊州南部的橡树山核桃林中研究了降水、通过和茎流中的养分通量,为期三年。这些与水有关的途径中的养分输入大约是凋落物的一半;一种主要的养分回返机制。考虑到这些水携带的养分(116公斤/公顷/年),38%由降水贡献,35%由通过流量贡献,约27%由茎流贡献。虽然总养分输入量仅为凋落物的一半,但由于其即时可用性,对短期养分需求的净影响是相当大的。凋落物中的养分输入代表了一种延迟的回归机制,因为分解速度相对较慢

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