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Ecological Function Regionalization for the Sihe River Drainage Area

Author: SunJingJie
Tutor: ZhangZuLu
School: Shandong Normal University
Course: Physical Geography
Keywords: Si River Ecological sensitivity Ecosystem services Ecological function zoning
CLC: X171
Type: Master's thesis
Year: 2011
Downloads: 146
Quote: 1
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Abstract

Ecological function zoning in ecological surveys, based on the analysis of regional ecological characteristics of ecosystem services and ecological sensitivity of spatial distribution pattern, determine the ecological functions of different geographical units. Ecological function zoning district is the implementation of the regional ecological environment management foundation and prerequisite for the development of regional environmental protection, maintenance of regional ecological security, conservation of the regional ecological environment to provide scientific basis for environmental management and decision-making departments to provide management information and management tool. Conduct Si River Basin Ecological Function Regionalization research, not only for the entire Nansi Lake watershed ecological function regionalization study provides a paradigm, but also help to improve the ecological environment, improve the quality of life of local residents, and promote the economic development of the basin, properly solve watershed water quality protection and local economic and social development of the contradictions and achieve win-win economic and social environment synchronization. This paper surveys and collect data in the field, based on the use of ecological principles to analyze Si River Basin Ecological Environment, and uses a combination of qualitative and quantitative methods, the Si River ecological sensitivity, to evaluate the importance of ecosystem services reveals its Variation; On this basis, combining economic and social development watershed characteristics for Si River Basin ecological function zoning, and according to the various functional areas of ecological environment characteristics, the main environmental problems and leading ecological functions, proposed ecological conservation and construction of key tasks and specific measures. (L) Si rich river basin ecosystem types, there is a regional ecological problems of uneven spatial and temporal distribution of water resources, influenced by precipitation, combined with regional rivers are subject to different degrees of pollution, water shortages in some regions. Affected by mining and other human activities, the local area is more serious soil erosion. High forest coverage in some areas, but stand structure is not rational. (2) Si River Basin ecological sensitivity spatial distribution pattern showed that soil erosion is mainly distributed in a very sensitive area Si River basin upstream of the hilly area to spring Town largest distribution area; geological disasters in very sensitive areas are mainly distributed in Si River valley to the southeast, mainly in mountainous and hilly, Si Zhang Zhen, Miao town hall, before the city is the main town and Tian Huang Zhen distribution; water pollution is very sensitive areas are mainly distributed in Si River in the northwest. (3) Si River Basin ecosystem services spatial pattern that ecosystem services are mainly distributed in a very important area: the spring Town as the center of the eastern hilly area to Shimenshan and Longmen as the center of North Down District to Benny Hill Benny Hill National Forest Park and Reservoir as the center of the southern region, with \(4) the use of GIS technology, through spatial overlay, the Si River basin is divided into eight ecological function zones, and the various functional areas of ecological sensitivity, ecosystem services and problems are analyzed, presented each function District development.

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