Clarifying factors affecting above-ground floristic composition and soil seed banks for the conservation and restoration of plant species in rice paddy fields
阐明影响地上植物区系组成和土壤种子库的因素,以保护和恢复稻田植物物种
基本信息
- 批准号:19780030
- 负责人:
- 金额:$ 1.64万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Young Scientists (B)
- 财政年份:2007
- 资助国家:日本
- 起止时间:2007 至 2009
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Cultivated and abandoned paddy field are floristically highly diverse, but the mechanisms affecting this diversity are not clear. The following studies were carried out. First, field surveys in cultivated rice paddy fields showed that influence of land improvement intensity on floristic composition was different among different land form types. This study also implied the importance of the period of rice harvest as a factor controlling floristic composition. A germination test was, hence, carried out using surface soils of a cultivated rice paddy. The results suggest that floristic composition just after the crop harvest in autumn was strongly different according to the timing of rice harvest, while in the subsequent spring floristic composition was less affected by the timing of rice harvest in the previous year. As the third study topic, floristic composition in the soil seed banks was investigated along a chronosequence in abandoned paddy fields, where soil seed banks of rare wetland floristic species are often maintained in the surface soils. This study illustrates that duration of abandonment clearly decreased the number of wetland species, whereas no less than half species observed in the start of abandonment persisted in the seed banks under germinable condition.
耕地和弃耕稻田植物区系高度多样性,但影响这种多样性的机制尚不清楚。进行了以下研究。首先,通过对稻田的实地调查,发现土地整治强度对不同地貌类型稻田植物区系组成的影响是不同的。这项研究还暗示了水稻收获期作为控制植物区系组成的一个因素的重要性。因此,使用栽培稻田的表层土壤进行发芽试验。结果表明,在秋季作物收获后的植物区系组成是强烈不同的水稻收获的时间,而在随后的春季植物区系组成的影响较小的水稻收获的时间在前一年。第三个研究课题是利用湿地珍稀植物种子库的优势种--弃耕稻田土壤种子库,沿着时间序列对弃耕稻田土壤种子库的植物区系组成进行研究。这项研究表明,遗弃的持续时间明显减少了湿地物种的数量,而不少于一半的物种观察到在开始遗弃坚持在种子库发芽条件下。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
農村の耕地植生における生物多様性管理
农村耕地植被生物多样性管理
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:李マイ;鈴木智子;清水圭一;七夕高也;篠崎良仁;高橋彩佳;渋谷健市;市村一雄;山田哲也;金勝一樹;山田晋;篠崎良仁;山田晋
- 通讯作者:山田晋
A comparative study of the seed banks of abandoned paddy fields along a chronosequence in Japan
日本废弃稻田种子库的时间序列比较研究
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:李マイ;鈴木智子;清水圭一;七夕高也;篠崎良仁;高橋彩佳;渋谷健市;市村一雄;山田哲也;金勝一樹;山田晋
- 通讯作者:山田晋
Landform condition and land improvement affect floristic composition in rice paddy fields, central Japan
地形条件和土地改良影响日本中部稻田的植物群组成
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:Yamada T;Ichimura K;Kanekatsu M;van Doorn WG;Kenichi Shibuya;Tetsuya Yamada;Yamada S.Kusumoto Y.Tokuoka Y.Yamamoto S.
- 通讯作者:Yamada S.Kusumoto Y.Tokuoka Y.Yamamoto S.
稲刈り時期はその後の雑草群落発達にどの程度影響を及ぼすか
水稻收获时间在多大程度上影响后续杂草群落的发展?
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:山田晋;楠本良延;徳岡良則;山本勝利
- 通讯作者:山本勝利
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YAMADA Susumu其他文献
YAMADA Susumu的其他文献
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{{ truncateString('YAMADA Susumu', 18)}}的其他基金
Are species-rich grassland vegetation restorable in riverdike?
河堤上物种丰富的草原植被可以恢复吗?
- 批准号:
17H03958 - 财政年份:2017
- 资助金额:
$ 1.64万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of restoration techniques for the re-creation of semi-natural grasslands in riverdykes
河堤半天然草地重建恢复技术开发
- 批准号:
26450492 - 财政年份:2014
- 资助金额:
$ 1.64万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of restoration technique using mown plant material in semi-natural grasslands and semi-open woodlands
半天然草原和半开放林地砍伐植物材料恢复技术的开发
- 批准号:
23780022 - 财政年份:2011
- 资助金额:
$ 1.64万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
Development of parallelization strategy and speedup technique for 2D quamntum system on many-core parallel machines
多核并行机上二维量子系统并行化策略及加速技术开发
- 批准号:
23500056 - 财政年份:2011
- 资助金额:
$ 1.64万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of Parallelization Method of Simulation Method for Quantum Many-body Problem
量子多体问题仿真方法并行化方法的发展
- 批准号:
20500044 - 财政年份:2008
- 资助金额:
$ 1.64万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Growth Mechanism of Polydiacetylene Monolayer at the Air-Water Interface
聚二乙炔单分子层在空气-水界面的生长机理
- 批准号:
08650394 - 财政年份:1996
- 资助金额:
$ 1.64万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Basic research for glucose metabolism in inflammatory tissue by positron-labelled glucose analog
正电子标记葡萄糖类似物对炎症组织葡萄糖代谢的基础研究
- 批准号:
06670899 - 财政年份:1994
- 资助金额:
$ 1.64万 - 项目类别:
Grant-in-Aid for Scientific Research (C)














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