Action Mechanism of Forage Grass Roots on the Soil Structure

饲草草根对土壤结构的作用机制

• 批准号: 02660285
• 负责人: KOBAYASHI Hiroshi
• 金额: $ 1.34万
• 依托单位: Kitasato University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02660285/
• 关键词: grassland soil; soil structure; forage roots; root mat; superficial roots; マルチ裁培; 永年草地; 牧草根群

On a permanent grassland, it was observed that living and dead roots and subterranean stems were accumulated in the ground surface. They were divided into three layers. The topmost layer was composed of plant material with no soil particles and was called R-layer. The second intermediate layer was made of soil particles bound by living and dead roots and was called the RS-layer. Both the R and the RS-layers could be lifted together easily away from the underlying layer in field.The lowest layer was called the Slayer and was composed of soil with a small quantity of plant material. The two uppermost layers taken together are referred to as the root mat. The thickness of the root mat increased with age. In comparing the R-layer with the RS-layer, the change in the thickness of the R-layer was more affected by time.This results suggests that the root mat formation is dependent on the accumulation of grass roots which can not penetrate into the ground.

在永久草地上，观察到活根和死根以及地下茎积累在地表中。它们分为三层。最上层由植物材料组成，不含土壤颗粒，称为 R 层。第二个中间层由活根和死根结合的土壤颗粒组成，称为 RS 层。 R 层和 RS 层都可以在田间轻松地一起从下层提起。最底层称为 Slayer，由土壤和少量植物材料组成。最上面的两层一起称为根垫。根垫的厚度随着年龄的增长而增加。比较R层和RS层，R层厚度的变化受时间影响更大。这一结果表明，根垫的形成取决于不能渗入地下的草根的积累。

项目成果

小林 裕志,鈴木 創三,杉浦 俊弘: "R層構成因子としてのイネ科牧草の地表根発達" 日本草地学会誌. 36ー別. 75-76 (1990)

Hiroshi Kobayashi、Sozo Suzuki、Toshihiro Sugiura：“禾本科草的表面根发育作为 R 层组成因素”，日本草原协会杂志 36-Separate（1990 年）。

小林,鈴木,杉浦: "モデル培地におけるイネ科牧草地表根の形態学的特徴" 日本草地学会誌. 36ー別. 77-78 (1990)

Kobayashi、Suzuki、Sugiura：“模型介质中禾本科草的表面根的形态特征”，日本草原协会杂志 36-Separate（1990 年）。

Hiroshi KOBAYASHI, et al: "Effect of superficial roots of forage grass on R-layer formation." J. Japan. Grass. Sci.36-Add.75-76 (1990)

Hiroshi KOBAYASHI 等人：“饲草浅根对 R 层形成的影响。”

Hiroshi KOBAYASHI, et al: "Role of forage roots in permanent grasslant on soil conservation." J. Japan. Grass. Sci.

Hiroshi KOBAYASHI 等人：“永久性草地中饲料根对土壤保持的作用。”

小林 裕志 他: "モデル培地におけるイネ科牧草地表根の形態学的特徴" 日本草地学会誌別号. 36. 77-78 (1990)

Hiroshi Kobayashi 等：“模型培养基中禾本科草表面根的形态特征”，日本草地学会杂志，特刊 36. 77-78 (1990)。