Stuies on the carbon- and mineral- cycling under changing enviromment Larix forests of Far East Asia

环境变化下远东落叶松林碳矿循环研究

• 批准号: 17255006
• 负责人: SATOH Fuyuki
• 金额: $ 18.14万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17255006/
• 关键词: southern limit of permafrost region; glboal warming; Larix forests; forest fire; carbon flux; china:Russia; international exchange of researchers; forest dynamics; 中国・ロシア

The carbon-, water- and mineral cycling were investigated in the Larix forest watersheds, associated with growth, succession and carbon storage, of southern limit area of permafrost region of Far East Asia. The research sites were set in the Larix (Larix gmelinii) forests of a) Maoershan Experimental Forestry Center, north Northeast Forestry University, Harbin, China (seasonally frozen area), b) the Greater Khingan Range, China, c) Mo-he, northernmost of China and d) Blagobeshensk, Amur Region, Russia (discontinuous permafrost region). The site c) and d) were affected by the forest fires repeatedly. The Larix forests in continuous permafrost area also investigated in northern mountain range in Amur region.'The distribution of Larix forest was strongly related to the presence of Permafrost layers which were barely preserved by the existence of forests and wet lands. The permafrost in this region is likely to disappear easily if forest cover or wet land were destroyed by global warming or forest fires, which results in the release of CO2 together with methan from accumulated organic substances inside or above permafrost. The organic carbon storage in the Great Khingan Range showed uneven distribution especially in and /or under wet land, which indicated the importance of the preservation of wet land in this area from the aspect of global warming.In the naturally regenerated forests after forest fire of Amur region, they exhibited high diversity of tree species such as Larix, oak (Quercus mongolica), birch (Betula platyphylla, Betula davurica), pine (Pinus sylvestris), aspen (Populus tremula) etc. Larix was estimated to regenerate simultaneously and make spatially concentrated distribution after forest fire. Repeated forest fire was considered to be the driving force of this type of regeneration through burning off the saplings and/or the young stands on the forest floor in addition to the extensive destruction of seed trees by forest fires in this region.

对远东多年冻土区南部极限区落叶松森林流域的碳、水和矿物循环进行了研究。研究地点设在：a)东北林业大学北部帽儿山实验林业中心，哈尔滨，中国(季节性冻土区)，b)大兴安岭，中国，c)莫和，中国最北端，d)俄罗斯阿穆尔地区布拉戈比申斯克(不连续多年冻土区)。C)和d)地点多次受到森林火灾的影响。连续多年冻土区的落叶松森林也在阿穆尔地区的北部山脉进行了调查。落叶松森林的分布与永久冻土层的存在密切相关，这些冻土层的存在几乎没有被森林和湿地的存在所保护。如果全球变暖或森林火灾破坏了森林覆盖或湿地，导致多年冻土内部或以上积累的有机物质释放出二氧化碳和甲烷，该地区的永久冻土很容易消失。大兴安岭地区的有机碳储量分布不均，尤其是在湿地和/或湿地之下，这从全球变暖的角度说明了该地区湿地保护的重要性。在阿穆尔地区森林火灾后的天然更新林中，表现出高度多样性的树种，如落叶松、栎树(Quercus Mongolica)、桦树(Betula Biryphy lla、Betula Davurica)、松树(Pinus Cervestris)、杨树(Pillius Tremula)等，估计落叶松在森林火灾后同步更新并在空间上集中分布。反复发生的森林大火被认为是这种更新的动力，除了该地区森林大火对种子树的广泛破坏外，还烧毁了森林地面上的树苗和/或幼林。

项目成果

Utility of spectral vegetation index for estimation of light conversion efficiency in coniferous forests in Japan

利用光谱植被指数估算日本针叶林光转换效率

• 发表时间: 2008
• 期刊: Agricultural and Forest Meteorology(掲載確定)
• 作者: Nakaji;T.
• 通讯作者: T.

火災が土壌特性に与える影響に関する国際会議に参加して

参加关于火灾对土壤性质影响的国际会议

• 发表时间: 2007
• 期刊: 北方林業 60
• 作者: 小林;真
• 通讯作者: 真

Report from the International Congress of Influence of Forest Fire on the Properties of Soil

国际森林火灾对土壤特性影响大会的报告

• 发表时间: 2007
• 期刊: Hoppo Ringyo 60 (in Japanese)
• 作者: Nakaji;T.;Kobayashi M.
• 通讯作者: Kobayashi M.

高CO_2環境下での冷温帯樹木の水利用特性の変化が葉柄の内部構造に与える影響

高CO_2环境下寒温带树木水分利用特性变化对叶柄内部结构的影响

• 发表时间: 2006
• 期刊: 日本森林学会北海道支部論文集 54
• 作者: 江口;則和
• 通讯作者: 則和

Characteristic change of water utility in boreal trees under high CO2 environment and their effect to the inner structure of petiol

高CO2环境下北方针叶林水分利用特征变化及其对叶柄内部结构的影响

• 发表时间: 2006
• 期刊: Transactions meeting in Hokkaido Branch Japanese Forestry Society 54 (in Japanese)
• 作者: Yamazaki;T.;Oda;H;Eguchi K.
• 通讯作者: Eguchi K.