Nutrient-uptake and nutrient-use efficiency of Pinus thunbergii Parl.along a topographical gradient of soil nutrient availability
書誌事項
- タイトル別名
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- Nutrient-uptake and nutrient-use effici
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<jats:title>Abstract</jats:title><jats:p>To examine responses of a plant species to nutrient availability, we investigated changes in soil nutrient availability, litterfall production and nutrient content in litterfall along a topographic gradient in a <jats:italic>Pinus thunbergii</jats:italic> Parl. plantation. Responses were evaluated in terms of three efficiency indices: (i) nutrient‐uptake efficiency (the ratio of nutrient return in litterfall to soil nutrient availability); (ii) nutrient‐use efficiency (the ratio of litterfall mass to nutrient return in litterfall); and (iii) nutrient‐response efficiency (the ratio of litterfall mass to soil nutrient availability). These indices can distinguish the ability of a species to acquire nutrients and its ability to use them in litterfall production. Nitrogen and phosphorus availabilities in soil were lower in upper slope positions. The three efficiencies were higher in upper slope positions and negatively correlated with soil nutrient availability for both nitrogen and phosphorus. An increase in nutrient‐response efficiency was achieved by both increases in nutrient‐uptake and nutrient‐use efficiencies.</jats:p>
収録刊行物
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- Ecological research / Ecological Society of Japan
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Ecological research / Ecological Society of Japan 12 (2), 191-199, 1997-08
Tokyo : Springer Japan
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詳細情報 詳細情報について
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- CRID
- 1523388079724145920
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- NII論文ID
- 10002710045
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- NII書誌ID
- AA10667816
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- ISSN
- 09123814
- 14401703
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- NDL書誌ID
- 4287979
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- 本文言語コード
- en
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- NDL 雑誌分類
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- ZR1(科学技術--生物学)
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- データソース種別
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- NDL
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