Study on the spatial distribution of ecological environment in Songhuajing watershed based on land use and its change: Harbin region as example

Wenfeng Gong; Tiedong Liu

doi:10.1117/12.887831

4 February 2011 Study on the spatial distribution of ecological environment in Songhuajing watershed based on land use and its change: Harbin region as example

Wenfeng Gong, Tiedong Liu

Author Affiliations +

Proceedings Volume 7752, PIAGENG 2010: Photonics and Imaging for Agricultural Engineering; 775209 (2011) https://doi.org/10.1117/12.887831
Event: International Conference on Photonics and Image in Agricultural Engineering (PIAGENG 2010), 2010, Qingdao, China

Abstract

The Index system of land eco-environmental status evaluation was constructed from Landsat TM images of 1996 and 2005a, based on RS. Supported by the function of GIS special analysis and geological statistical, the mini-watersheds was used as evaluation units(5×5km) based on the land use and its changes, the land eco-environmental status index (EI) model was used to evaluate. The changes in results of EI were studied. The result shown that: the total land ecoenvironmental status in 2005 was general, the tendency was better compared with 1996, the area of slightly and basically better accounted for 21.39% of the total area, this region was mountains and hills and the conversion of from cultivated land to forestland was the main track, the proportion of unchanged region was 78.17%,which occupied the dominant position and was the major section for the activities of people living and agriculture, the proportion of slightly worse region was lowest, the region was the fragile of hills and plains and its ecological environment was sensitive. Therefore, this study's result had noticeable significance to the regional land eco-environment protection and its improvements.

Citation Download Citation

Wenfeng Gong and Tiedong Liu "Study on the spatial distribution of ecological environment in Songhuajing watershed based on land use and its change: Harbin region as example", Proc. SPIE 7752, PIAGENG 2010: Photonics and Imaging for Agricultural Engineering, 775209 (4 February 2011); https://doi.org/10.1117/12.887831

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Environmental sensing

Agriculture

Vegetation

Soil science

Statistical analysis

Geographic information systems

Earth observing sensors

Show All Keywords

Keywords/Phrases

Search In:

Publication Years