Ecological characteristics and variations among the strains of switchgrass planting on soil erosion in the hills of the Loess Plateau in China

黄土高原丘陵地区柳枝稷种植对水土流失的生态特征及变异

• 批准号: 16580010
• 负责人: ICHIZEN Nobumasa
• 金额: $ 2.37万
• 依托单位: Utsunomiya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16580010/
• 关键词: switchgrass; Loess Plateau; prevention of dust storm; prevention of; China; switchgrass; 雑草利用; 砂漠化防止; 黄砂

As a result of poor management, the vegetation on the Loess Plateau, consisting of forests and grassland, has been completely destroyed during the past 2000-year period. Since 1988, we have performed weed species selection tests for the recovery of vegetation in the hills of this plateau. About 20,000 species were introduced from foreign countries on to the slope. As a result, switchgrass (Panicum virgatum) has been chosen as a candidate species for the vegetation recovery. In this study, the ecological characteristics and variations among the strains of switchgrass planting on soil erosion in the hills of the Loess Plateau in China was studied.Switchgrass rhizome showed superior cold and dry tolerance in test plants. The rhizome had higher concentration of lipids and higher proportions of unsaturated fatty acid than did other spesies rhizome. This difference may contribute to the superior cold tolerance of switchgrass. Switchgrass has excellent root system and was effective for the prevention of soil erosion due to tight soil binding force. In switchgrass planting field, switchgrass became dominant, but native species have been survived. Switchgrass had many strains in ecologically and hereditarily.

由于管理不善，在过去的2000年里，黄土高原上由森林和草原组成的植被被完全破坏。自1988年以来，我们在该高原丘陵地区进行了杂草物种选择试验，以恢复植被。大约有2万种植物从国外引进到这个斜坡上。因此，柳枝条被选为植被恢复的候选树种。本文研究了中国黄土高原丘陵地区种植柳枝花的生态特性及品系间的变异规律。与其他种根状茎相比，根状茎具有更高的脂肪浓度和更高的不饱和脂肪酸比例。这种差异可能是柳枝菊具有较强的耐寒性的原因之一。柳枝花具有优良的根系，土壤结合力较强，对防止土壤侵蚀效果显著。柳枝条种植地，柳枝枝草成为优势种，但乡土树种得以幸存。柳枝藤在生态和遗传上具有多个品系。

项目成果

Gas exchange biomass partition and water relation of three grass seedling under water stress

水分胁迫下三种草苗气体交换生物量分配与水分关系

• 发表时间: 2006
• 期刊: Weed Biology and Management 6,2(In press)
• 作者: K.Morimoto;Y.Yamasue;BINGCHENG XU
• 通讯作者: BINGCHENG XU

Impacts of switchgrass planting on soil erosion in the hills of the Loess Plateau in China

黄土高原丘陵种植柳枝稷对土壤侵蚀的影响

• 发表时间: 2005
• 期刊: Weed Biology and Management 5,1
• 作者: K.Morimoto;Y.Yamasue;NOBUMASA ICHIZEN
• 通讯作者: NOBUMASA ICHIZEN

Physiological and ecological characteristics of switchgrass (In Japanese)

柳枝稷的生理生态特性（日语）

• 发表时间: 2005
• 期刊: J.Weed Sci.Tech. Vol.50(Sup.)
• 作者: K.Morimoto;Y.Yamasue;NOBUMASA ICHIZEN;NOBUMASA ICHIZEN;NOBUMASA ICHIZEN
• 通讯作者: NOBUMASA ICHIZEN

Gas exchange, biomass partition, and water relation of three grass seedling under water stress

水分胁迫下三种草苗的气体交换、生物量分配及水分关系

• 发表时间: 2006
• 期刊: Weed Biology and Management 5・4(In press)
• 作者: Abe;T.;Sugawara;H.;Kinouchi;M.;Kanaya;S.;Ikemura;T.;BINGCHENG XU
• 通讯作者: BINGCHENG XU