Nihon Seitai Gakkaishi
STUDIES ON THE RELATIONSHIP BETWEEN MISCANTHUS SINENSIS COMMUNITY AND SOIL : (1) RELATIONSHIP BETWEEN PRODUCTIVITY OF MISCANTHUS SINENSIS GRASSLAND AND MICROTOPOGRAPHY
of Agriculture , Kobe Unlversity , Kobe ) Studies on the relationship between Miscanthws sinensis community and soil ( 1) RelatiQnship between productivity of ルtiscanthus sinensis grassland and microtopQ − graphy Jap . J. Ecol,19,ヱ37 − 147 ( 1969). The areas studied are in the grass 夏 and of the K ψ Highland and of the outer rim of Mt . Aso and dur量 ng 1966 ・The area of the Kuju Highland has an eievation of about 55 〔 } _ 600m and 且 ssltuated o れ the gentle slope facing SW at the fo。t of Mt .
... the fo。t of Mt . Kuju. Eight plots were I at 〔 蹙 1inearly , c ・n ・ ide・ 孟 ng the variati ・n ・ f the pH v ・ lue ・f the s ・ ll a ・ a ・ ・ugh indlcat 。 r f。 r d三fferent plant communities . When the varlation of the pH values excee 覦 0. 1 − 0 . 2, a pit was bored to investigate the soil profile . The area of the Aso Highland is sltuated on the south . east sbpe , and in a grassland dominated by Miseanthus sinensis about 3km west of Daikanbo on the north portion of the outer r 玉 m of M し AsQ . The results Qf the survey are as follows ; Relationship between soil moisture and standing crop of the native grass ] and . Th ... il ・ i・ th・ tw ・ ・xp ・・im・n 惚 1 ・ ・ea ・ c ・ ・ t・ 圃 ・ufi ・i ・nt w ・ t・ ・, P ・ ・ti ・u1 ・ ・ly ・ t th ・ p1 。 t, s1tuated on the botLorn of a gorge or near the base Qf a slope . From this respect , the Miscan. thus sinensis grassland seems to grow weH in moist areas . However, there is a problem of 止 e b・1 ・ ・ce b・twee ・ w ・ ... a ・ d ・i ・ i ・ th ph ・・e 。 f ・・ i1 ・N ・m ・ly , th・ w ・ter − ai ・ ・ati ・ hユ th... ii m 。 y be a key for the prQductivity of the grasslands even when there is little d三 仔erence in the level of nutrlents 。 Relatienship between exchangeable bases of soil and standing crop of the nat 玉 ve grassland . 王 nthe Kulu − Aso Highlands the investment of calcium at the surface Iayer is h三 gh in the ・ place having a iarge standing crop , except the plQt 4 in Aso . The exchangeable potass 三 um contents increase mole or less in the upPer layer too・ It is noticeable that the p ! Ot having a Iarge ・ta・ ding・・Qp ・ h・w ・ the accum ・董 ・ti 。 ・ ・f ... n ・id ・・ab1 ・ q 岨 ntity ・f ・x ・h・ng ・・bl ・ p。 tassium . Introduction In thls country , natural and semi − natural grasslands occupy apProximately two million hectares . Most of these grasslands are located ln mountalnous reglons and their utilization as grazing 正 and and mowing land is due to eco .