多変量解析的手法による茨城県阿字ヶ浦砂丘の植生と土壌環境の解析 : I.アソシエーションアナリシス

概要

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The association-analysis of WILLIAMS and LAMBERT was applied to the vegetation of the dune system at Azigaura, Ibaraki Pref. Four types of associations were recognized and their relations with edaphic environments were investigated. The association characterized by Carex kobomugi and Carystegia soldanella was situated on the fore dunes near the sea and its soil had a large amount of exchangeable cations. The second association containing Ischaemum antephoroides, Glehnia littoralis, Zoysia macrostachya, Oenothera erythrosepala, etc. occurred on the semi-fixed dunes. The vegetation on sandy hillocks and well drained grasslands was divided as the third association. It was dominated by Indigofera pseudo-tinctoria associated with Erigeron canadensis and E. sumatrensis. Its habitat was characterized by higt organic matter and nutrient content. The fourth association defined by the presence or Erigeron annuus was situated on slacks and low-lying wet regions and characterized by high soil moisture.
1979-03-30