2021 Fiscal Year Final Research Report
The effects of changes in chemical properties of soil especially neutralization of acid by urbanization on carbon dynamics in urban forests
| Project/Area Number |
19K06333
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 41050:Environmental agriculture-related
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| Research Institution | Chiba University |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 都市化 / 都市緑地 / 土壌 / 有機物分解 / 生物多様性 / 土壌酸性 |
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| Outline of Final Research Achievements |
With urbanization, the concentration of calcium, magnesium, etc. derived from dust in the soil increased, the amount of manganese absorbed by plants decreased relatively, and the nitrogen concentration increased, resulting in difficult decomposition contained in leaves. Decomposition of sex organic substances was suppressed and the carbon concentration in the soil increased. In addition, the acid in the soil was neutralized by the influence of dust due to urbanization, and the diversity of soil animals was reduced, so that the decomposition of foliage by soil animals was suppressed, which was also a factor in increasing the carbon concentration in the soil.
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| Free Research Field |
緑化工学
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| Academic Significance and Societal Importance of the Research Achievements |
都市緑地を管理する際に、都市環境が都市緑地生態系におよぼす影響に配慮する必要がある。現在の都市緑地での植物管理は、山岳地の森林や農地といった、都市化の影響をあまり受けていない地域で得られた知見に基づいて行われている。今後、都市域での緑地管理には、自然界の物質循環の要素を取り入れた管理を行うことが望ましく、都市環境が物質循環特性におよぼす影響を明らかにした本研究の成果が活かされると考える。
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