2 0 0 0 OA 地理情報システムを用いた半乾燥地域での土壌侵食の評価
- 著者
- 森下 英治
- 出版者
- Geographic Information Systems Association
- 雑誌
- GIS-理論と応用 (ISSN:13405381)
- 巻号頁・発行日
- vol.1, no.1, pp.35-45, 1993-03-25 (Released:2009-05-29)
- 参考文献数
- 10
Environmental issues involve a variety of underlying, interwoven factors.Geographical Information Systems (GIS) can be effectively utilized, both inanalyzing such factors and in organizing environmental preservation programs.This study aims to investigate, by utilizing GIS, the relationship between humanactivities and desertification in a semi-aridarea, based on which to proposefeasible measures toward sustainable aguriculture. An equation to compute theamount of soil loss was formulated from field data collected in Makutapora, andinput data to GIS are produced by digitizing existing materials available for thesurvey area, such as topographic maps and multispectral image data. The equationand data are then combined to GIS, in order to identify causal factors and assessthe areal distribution of soil losses
1 0 0 0 OA 移動時間を用いた都市圏における自然へのアクセシビリティ評価
- 著者
- 森下 英治 原科 幸彦
- 出版者
- Geographic Information Systems Association
- 雑誌
- GIS-理論と応用 (ISSN:13405381)
- 巻号頁・発行日
- vol.2, no.1, pp.131-139, 1994-03-31 (Released:2009-05-29)
- 参考文献数
- 5
This study aims to evaluate the accessibility to the natural environments of residential environment evaluation in Utsunomiya City. For the purpose, the evaluation functions which use multiple regression analy-sis with residents'evacuation of accessibility as the criterion variable and the traveling time to the destinations as explanatory variables were developed using GIS.As the result, compared with the case which the air distance was used as explanatory variables, the coefficient of determination becomes more than two times. And this result shows that traveling time is an effective factor and GIS is useful tool for this kinds of study.