Evaluation for ecological functions of the fragmented urban forests by landscape ecological methods and molecular ecological methods

景观生态学方法和分子生态学方法评价破碎化城市森林的生态功能

• 批准号: 15570026
• 负责人: MANABE Tohru
• 金额: $ 2.43万
• 依托单位: Kitakyushu Museum of Natural History and Human History
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15570026/
• 关键词: landscape ecology; molecular ecology; habitat function; fragmentation; GIS; AFLP analysis; population dynamics; small mammals; ハビタット機能,; 実生・稚樹集団; 小型哺乳類相; 稚樹・実生集団; オルソフォト; 分子マーカー; 齧歯類

Factors affecting fragmentation of urban forests, size structure and genetic structure of woody species communities, species composition of small mammal communities, and the changes of inter-specific relationships by fragmentation of their habitats were analyzed in the northern part of Kitakyushu City.Main results of the studies were as follow : 1)the regulation systems contributed to conserve the area of urban forests, 2)there were certain site conditions that were prone to be destructed, 3)some forests could become the key stones for conserving regional biological diversity even the forests had been fragmented, and 4)certain species might be severely affected on their population structure, population dynamics and genetic structures by the effects of habitat fragmentation.Some ecological functions involved in those fragmented forests could be evaluated by integrating above results. For example, Castanopsis cuspidate, which was one of dominant canopy species in the region, formed abundant seedling bank in the highly fragmented forests with canopy dominated by the Castanopsis. This is attributable to the fact that the number of small rodents that could become main seed predator of the Castanopsis was very few in the forests. Thus, the habitat function of this type of forests was lower for some rodent species, but higher for Castanopsis cuspidata.

本文分析了北九州市北方城市森林破碎化的影响因素、木本植物群落的大小结构和遗传结构、小型哺乳动物群落的物种组成以及生境破碎化引起的种间关系的变化。1）调控体系有助于保护城市森林的面积，2）存在某些易被破坏的立地条件，3）有些森林即使破碎化，也可能成为保护区域生物多样性的基石; 4）某些物种的种群结构可能受到严重影响，种群动态和遗传结构的变化，综合上述结果，可以对破碎化森林的生态功能进行评价。以该地区林冠优势种之一的东北锥为例，在以东北锥为主的高度破碎化林分中形成了丰富的幼苗库。这是由于森林中能成为锥属树种主要捕食者的小型啮齿动物数量很少。因此，这种类型的森林的栖息地功能是较低的一些啮齿动物物种，但较高的锥。

项目成果

デジタル相観植生図を用いた北九州市北部域の景観変遷の解析

利用数字地形植被图分析北九州市北部地区的景观变化

• 发表时间: 2004
• 期刊: 北九州市立自然史・歴史博物館研究報告A類 2
• 作者: Isono;D. et al.;鈴木 武夫ほか
• 通讯作者: 鈴木 武夫ほか

都市計画における都市緑地の保全と配置に関する研究-北九州市を対象とした土地利用と土地被覆の差異について-

城市规划中城市绿地的保护和布局研究 - 北九州市土地利用和土地覆盖的差异 -

• 发表时间: 2006
• 期刊: 九州森林研究 59(印刷中)
• 作者: 梅野 岳;伊東啓太郎;真鍋 徹
• 通讯作者: 真鍋 徹

都市の森林パッチの面積変遷-北九州市中央部を対象に

城市森林斑块面积变化 - 以北九州市中部为对象

• 发表时间: 2006
• 期刊: 九州森林研究 59
• 作者: J.Yoshimura;T.Fujiki;T.Kawai;H.Amagai.;磯野 大ほか
• 通讯作者: 磯野 大ほか

北九州市における社寺林の残存状況と生態学的評価に関する基礎的研究

北九州市神社寺林生存现状及生态评价基础研究

• 发表时间: 2006
• 期刊: 九州森林研究 59
• 作者: T.Miyazaki;K.Takeya;T.Togashi;N.Nakagiri;T.Suzuki;J.Yoshimura;前迫 ゆり;橋本 大輔ほか
• 通讯作者: 橋本 大輔ほか

Basic study on distributional patterns and ecological characteristics of shrine/temple forests in Kitakyushu City.

北九州市神社寺林分布格局及生态特征的基础研究。

• 发表时间: 2006
• 期刊: Kyushu Journal of Forest Research 59
• 作者: Hashimoto;D. et al.
• 通讯作者: D. et al.