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北 陸 の 植 物 第21巻 第 1号 昭和48年4月

ような帯状分布のみられる水域では, よく発達しない。

以上のような, 夏季, 水路に発達する帯状の植生帯を形成させる環境要因は, おもに,

水流と水深の相互の慟きによるものと考えられる。

参 考 文 献

岡田勇作 19 66 水田雑草群落形成過程の生態学的研究 雑草研究No.5, P. 6 2-66.

清水建美 1965 木曽三川河口附近における水生植物のフコラと生態 木曽三川河口資源 調査報告 No.2 . p. 573-5 93,

沼田 真 1949 雑草群落の類型 生態学研究 12. 1 - 2. P42-48.

沼田 真・大野崇徳 19 52 帰化植物の生態学的研究. I . 生態学会報 2. 3 . P 117-122,

沼田 真 1965 草地の状態診断に関する研究I . 日本草地学会誌11. 1 . P 20-33.

浜島繁隆 1969 名古屋市東部, 溜め池の植物 市部学園紀要 No. 1. P 33-40, 浜島繁隆 1970 溜め池の水生植物の生態学的研究 北陸の植物18, 3 - 4.

P 116-120,

浜島繁隆 197 1 木曽川デルタ地帯の水生植物の分布と生態 愛知県私学研究梨録7.

P 1 - 7 .

Summary

Ecological study was made about vascular plants grown in the various四ters scattered around the Lower Kiso.

Waters were divided into three ; creek 1 (which water flows throughout the year), creek 2 (which water flows only occasionally) and water reservoir. For each of the three kinds of waters, life-form spectrum was drawn as shown in Fig.

1,

classifying the plants found there according the types in dormancy, in migrule and in leaf form. The leaf form of aquatic plants was tentatively typed by the author (L

1

-L孔

As seen in Fig. 1, creek 1 and water reservoir shown distinct type composition, H.G.-S-R

1

_ 3-D

1

-L

2

and H.G-ny-R

1

-3.s-D

1

-L1, respectively, and that of creek

2.

is intermediate between the two.

In many creeks belonging to category

2,

the banding distribution of aquatic plants appears along the water-side, as shown in Fig. 2. 3.

- 18 -

参照

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