@article{oai:rekihaku.repo.nii.ac.jp:00001302,
 author = {村石, 眞澄 and Muraishi, Masumi},
 journal = {国立歴史民俗博物館研究報告, Bulletin of the National Museum of Japanese History},
 month = {Feb},
 note = {application/pdf, 伊興遺跡をはじめとする足立区北部の発掘調査に携わる中で，微地形分類をおこなった。微地形分類は空中写真を判読し，比高差・地表の含水状態・土地利用を基準として分類を行い，発掘調査での土層堆積の観察所見や旧版の地形図を参照した。こうした微地形分類により，埋没していた古地形を明らかにすることができた。そこでこの埋没古地形の変遷を明らかにするため，花粉化石や珪藻化石などの自然科学分析から植生や堆積環境の検討を行った。
そして自然環境を踏まえた上で，発掘調査によって発見された遺構や遺物，中世や近世の文献資料などを総合的に概観し，次のように伊興遺跡を中心とする毛長川周辺の自然環境と人間活動の変遷過程を次の五つの段階に捉え，それぞれの景観印象図を作成した。
1　縄文海進のピーク時にはこの地域では大半の土地が海中に没したが，その後徐々に干潟ができ陸化が進んだ時期［縄文時代後期～晩期前半］。一時的な利用で土器を残した。
2　毛長川が古利根川・古荒川の本流となり，大きな河道や微高地が形成された時期［縄文時代晩期後半～弥生時代］。人間活動の痕跡は希薄である。
3　古利根川・古荒川が東遷し，毛長川は大河でなくなった時期［弥生時代終末期～古墳時代］。本格的に居住が行われるようになる。伊興遺跡は特異な祭祀遺跡として大いに発展する。
4　毛長川の旧河道の埋積が進んだ時期［奈良時代～平安時代初期］。伊興遺跡では祭祀場もしくは官衙関連施設は存在するが，遺構・遺物の規模が減少傾向を示す。
5　毛長川の旧河道の埋積が進んだ時期［中世］。伊興遺跡ではさらに遺構・遺物は減少し，遺跡の中心が毛長川沿いから離れ水上交通の拠点としての役割を終える。, During the period of my involvement in the excavation survey in the northern part of Adachi-Ward involving the Ikou Site near the Kenaga River, I drew a micro-Geomorphological Land Classification Map of this region. The method adopted for this Micro-geomorphological classification entailed the interpretation of aerial photographs (S=1:20,000) taken by the US military and basing classifications on the following criteria: difference in relative elevation, water content in the ground and land use. When making these classifications I also referred to other materials, including observational findings of stratum sedimentation obtained from excavation and topographic maps compiled between about 1906 and 1937.
These classifications made it possible to discover old land forms that had been filled in. I also investigated vegetation and the sedimentary environment by employing natural science analysis that included pollen fossils and diatom fossils.
In addition to gaining an understanding of the natural environment surrounding the site, I undertook a general survey of the evidence that had been discovered as a result of the excavation and documents from the Middle Ages and Early Modern Period. As a result, I identified the following five stages and produced impressionistic maps of the landscape for the natural environment and the process of change in people's lives in the area surrounding Kenaga River based around the Ikou Site.
1. Late Jomon Period to Early Final Jomon
Although most of the land in this area was submerged in the sea at the culmination of the Holocene transgression, tidal flats gradually emerged and land was formed. Although Jomon people did not live here, they visited temporarily and left behind earthenware.
2. Late Final Jomon to Yayoi Period
The Kenaga River became the main river of the old Tone-and-Ara River, forming a large river course and low ridges. There are few traces of human activity.
3. End of the Yayoi Period to the Kofun Period
The old Tone-and-Ara River shifted east so that the Kenaga River was no longer a huge river. The basic topography that has lasted up to today comprising of the low ridges and the former river course was more or less formed. People came to live there. The Ikou Site underwent considerable development as a specific site for religious rites related to water transportation.
4. Nara Period to Early Heian Period
Infilling of the old river course of the Kenaga River progressed. Although the Ikou Site existed as a place for conducting religious rites and as a government office, there is a decrease in the amount of remains and artifacts from this time.
5. Middle Ages
The infilling of the old river course of the Kenaga River progressed. There are fewer remains and artifacts from the Ikou Site dating from this period and the center of sites from this period are to be found some distance from the side of the Kenaga River, spelling the end of their role as bases for water transportation.},
 pages = {93--117},
 title = {東京低地北部毛長川周辺の地形環境と遺跡立地 : 伊興遺跡を取り巻く環境},
 volume = {118},
 year = {2004},
 yomi = {ムライシ, マスミ}
}