The history of human impact on natural environment in Iizuna Kogen Heights, Nagano City, central Japan
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Accession number;04A0286776
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| Title;The history of human impact on natural environment in Iizuna Kogen Heights, Nagano City, central Japan |
| Author;
TOGASHI HITOSHI
(Nagano-Ken Shizen Hogo Kenkyusho)
TANAKA NORIFUMI
(Parino・sabei)
OKITSU MASAHIRO
(Parino・sabei)
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Journal Title;Naganoken Shizen Hogo Kenkyujo Kiyo
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Journal Code:J1502A
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ISSN:1344-0780
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VOL.7;NO.;PAGE.1-16(2004)
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| Figure&Table&Reference;FIG.7, TBL.2, REF.35 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;A small moor, Sakasayachi Moor (about 4.5 hectares), Iizuna Kogen Heights, is situated at 934 m above sea level in the southeastern foot of Iizuna volcano. In the core sample collected from the Moor, we analyzed pollen and microscopic charcoal, and determined carbon-14 ages. It became clear that there has been a close correspondence between vegetation changes and human activities during last 9000 years. Since late Jomon period (about 3000 years BP), field firing became active in Iizuna Kogen Heights, and the influence of this on forest vegetation is clearly recognized in the core. Destruction of the forest reached climax during medieval times (about 700 years BP) and vast grassland appeared. In early modern times (after about 400 years BP), field firing became restrained, and the forest started to recover with Japanese red pine and cedar as dominant species. The interaction between man and nature as described here makes a prehistory of the modern Satoyama (a forested area close to human habitation) utilization, an essential relation in the wise exploitation of natural resources of the country. Such history as above cannot be ignored to consider Satoyama environment. (author abst.) |
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