Landscape change based on RS and GIS in the Jinghe basin, China

Yonghua Zhao; Yi Guo; Chaoqun Mao; Zhimin Ma; Tuansheng Li

doi:10.1117/12.812721

5 November 2008 Landscape change based on RS and GIS in the Jinghe basin, China

Yonghua Zhao, Yi Guo, Chaoqun Mao, Zhimin Ma, Tuansheng Li

Proceedings Volume 7144, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: The Built Environment and Its Dynamics; 71440S (2008) https://doi.org/10.1117/12.812721
Event: Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 2008, Guangzhou, China

Abstract

Based on digital Landsat Thematic Mapper (TM/ETM⁺) (1986, 1995, and 2000) imagery interpretation, landscape changes were analyzed in the Jinghe basin, one of the soil erosion regions in China, to provide basic data for local decision-making as well as sustainable landscape use and management. Results showed that landscape from 1986 to 2000 changed at the basin scale as the area of grassland, shrubland, sparse forestland, and water area decreased, while cropland, built-up land, unused land, other forestland, and forestland increased. Landscape changes mainly occurred in cropland, grassland, built-up land, shrubland, and sparse forestland. Moreover, the changes and area in cropland and grassland were the largest, influencing the whole characteristics of the changes in the Jinghe basin. Analysis of the changes between 1986 and 2000 in the study area indicated that bidirectional change between 1995 and 2000 was more obvious than between 1986 and 1995. But landscape use extent between 1986 and 1995 was bigger than between 1995 and 2000. Landscape developed continuously and transformed obviously before 1995, and which were in the regulation stage after 1995. Based on comparing characteristics between big and small remote sensing satellites, we thought that small satellite could be applied in landscape ecology and land use etc for its merit. We were in preparation for using and validating data from a small satellite in studying landscape changes and comparing the results with some results from a small satellite data.

Citation Download Citation

Yonghua Zhao, Yi Guo, Chaoqun Mao, Zhimin Ma, and Tuansheng Li "Landscape change based on RS and GIS in the Jinghe basin, China", Proc. SPIE 7144, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: The Built Environment and Its Dynamics, 71440S (5 November 2008); https://doi.org/10.1117/12.812721

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KEYWORDS

Satellites

Geographic information systems

Remote sensing

Image classification

Earth observing sensors

Ecology

Landsat

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