森林のリターフォール生産速度とその養分含有率に及ぼす土壌条件の影響

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タイトル別名
  • ON THE EFFECTS OF SOIL FERTILITY ON THE RATE AND THE NUTRIENT ELEMENT CONCENTRATIONS OF LITTERFALL IN A FOREST
  • 森林のリターフォール生産速度とその養分含有率に及ぼす土壌条件の影響〔英文〕
  • シンリン ノ リターフォール セイサン ソクド ト ソノ ヨウブン ガンユウリ

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Changes in the amounts and nutrient concentrations of litterfall in a forest in relation to soil fertility were studied. The results obtained in four 26-year-old Chamaecyparis obtusa stands and in 19 plots of natural deciduous broadleaved forests, all of which grew in different soil conditions, indicated that the production of leaf and total litterfall was positively correlated with soil fertility when the annual increment of stem velume of the stand or the mean height of the trees were used as an index of soil fertility. The weighted annual mean concentrations of N and P of leaf and total litterfall decreased with the decrease in soil fertility. There was no relationship between soil fertility and the concentrations of Ca, Mg and K in the litterfall. The quantitative effects exerted by soil fertility on the rate and nutrient concentrations of litterfall could not be assessed using the present experimental data. However, data showed that the amount of nutrients contained in the litterfall decreased in the poor soil compared to the rich soil, particularly for N and P, due to the decrease in production and nutrient concentration of the litterfall.

収録刊行物

  • 日本生態学会誌

    日本生態学会誌 33 (3), 313-322, 1983

    一般社団法人 日本生態学会

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