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タイトルヨミ
ボクソウ サイバイ ニ ヨル カンタクチ ノ ドジョウ コウゾウ ノ ヘンカ 2 ヤスギ チク ノ ジレイ
日本語以外のタイトル
Change of Soil Structure in Drained Area by Grass Culture(II) : Study Case in YASUGI Resion
ファイル
言語
日本語
著者
福桜 盛一
今尾 昭夫
内容記述(抄録等)
Following the our previous report, this time also, in order to clarify the index of a maturation of plow layer soil of drained area by the method of civil engineering, the change of soil structure (ped and void of soil) caused by grass culture was investigated in YASUGI region of NAKAUMI drained area.
The results obtained are as followes :
1) In the case of continuation of grass culture, namely case A, soil peds were restructured and coarse peds(l0mm or more) increased. On the other hand, in case of soil left as it is, case B, it was progressing to break a clod into fine pineces.
2) The above mentioned tendency was more obvious in the case of wet seave method, i. e., water resistance aggregates were formed in case A, otherwize, in case B, a clod was broken to fine grains of diameter less than 1mm.
3) In case of A, a clod was very stable to slaking and crumbled scarcely in water, but in case of B, a clod broke down easily.
4) By grass culture, coarce pores (corresponding pF 1.8 or less) decreased, while available pores (pF 1.8~3.0) and fine pores (pF 4.0 or more) increased.
掲載誌名
島根大学農学部研究報告
24
開始ページ
172
終了ページ
178
ISSN
0370940X
発行日
1990-12-21
NCID
AN00108015
出版者
島根大学農学部
出版者別表記
Shimane University, Faculty of Agriculture
資料タイプ
紀要論文
部局
生物資源科学部
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