Characteristics and sources of soil nutrients for the floodplain forestation and a proposal for the management

河漫滩造林土壤养分特征、来源及管理建议

• 批准号: 21360232
• 负责人: ASAEDA Takashi
• 金额: $ 10.9万
• 依托单位: Saitama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21360232/
• 关键词: 河川管理; 樹林化; 窒素; ヤナギ; ニセアカシア; 河川樹林化; 砂州; 栄養塩; 植生の一次遷移; 砂礫河原; 草本類; 河川生態; 氾濫原; レキ河原; アキグミ; 根粒菌

Floodplain forestation in a river channel increases the risk of floods and also deteriorates the original ecosystem. The soil of a floodplain is usually sterile and has very limited in nitrogen content. Therefore, plant succession in the floodplain is largely governed by the availability of soil nitrogen. The nitrogen pool in the floodplain soil expands due to atmospheric fallout and microbial N-fixation. However, the nitrogen enrichment in soil and its processing at the plant-soil interface is often intervened by the flooding events. After evaluating these processes, the prediction model of the plant succession was developed.

在河道中植树造林增加了洪水的风险，也恶化了原有的生态系统。泛滥平原的土壤通常是贫瘠的，含氮量非常有限。因此，洪泛平原的植物演替在很大程度上取决于土壤氮素的有效性。由于大气降尘和微生物固氮作用，滩涂土壤中的氮库扩大。然而，土壤中氮素的富集性及其在植物-土壤界面的处理往往受到洪涝灾害的干扰。在对这些过程进行评价的基础上，建立了植物演替预测模型。

项目成果

Spatial and temporal tree colonization in a midstream sediment bar and the mechanism governing tree mortality during a flood event.

中流沉积物坝中树木的时空定殖以及洪水事件期间控制树木死亡的机制。

• 发表时间: 2010
• 期刊: River Research and Applications
• 影响因子: 2.2
• 作者: Asaeda;T.;Gomes;P.I.A.;T akeda,E.
• 通讯作者: T akeda,E.

The effect of the succession from grasses to trees on the nutrient budgets of the surface soil of the sand bar in the gravelly rivers

草木演替对砾石河沙洲表层土壤养分收支的影响

• 发表时间: 2011
• 作者: Asaeda;T.;Rashid;Md. H.
• 通讯作者: Md. H.

THE ROLE OF SOIL CHARACTERISTICS IN THE SUCCESSION OF TWO HERBACEOUS LIANAS IN A MODIFIED RIVER FLOODPLAIN

• DOI: 10.1002/rra.1374
• 发表时间: 2011-06-01
• 期刊: RIVER RESEARCH AND APPLICATIONS
• 影响因子: 2.2
• 作者: Asaeda, T.;Rashid, Md. H.;Uchida, T.
• 通讯作者: Uchida, T.

多摩川河岸の薮化における窒素律速緩和の影響

氮肥限速放宽对多摩川河岸增厚的影响

• 发表时间: 2010
• 作者: 菅原久嗣;浅枝隆
• 通讯作者: 浅枝隆

渡良瀬川砂州上におけるハリエンジュの繁茂状況に関する基礎的調査

渡良濑川沙洲粳稻生长状况基础调查

• 发表时间: 2012
• 期刊: 河川技術論文集
• 作者: 池田裕一;亀田涼;浅枝隆;坂本健太郎
• 通讯作者: 坂本健太郎