Dissertation > Excellent graduate degree dissertation topics show

Quality Assessment of Dasha River in Pulandian City of Dalian

Author: ZhouGuangFeng
Tutor: LiuXin
School: Liaoning Normal University
Course: Environmental Science
Keywords: Dasha River water environment Principal component analysis AHP SPSS
CLC: X824
Type: Master's thesis
Year: 2012
Downloads: 1
Quote: 0
Read: Download Dissertation

Abstract


Water is the important factor of various ecosystems on earth, any natural phenomenon and process are closely linked with water. Water, as the basis of natural resource, can not only maintain the production of industry and agriculture, but also support the survival and development of human as an indispensable finite resources. So we can say, without water there would be no life on the earth. The river is a kind of carrier for water, it is the main component of surface water, and the reasonable development and utilization of river water resources play a decisive role in economic, social and ecological development.Dasha river is the earliest River in water resources development in Pulandian city of Dalian. As a major river of the city, it is the main source in providing drinking water, industrial and agricultural water for the city. In recent years, with the accelerated development of industry and agriculture, the water environment of Dasha river basin was gradually deteriorated by sewage emissions from industry, agriculture and daily life. The consequence seriously affects the future urban and rural development. Therefore, we must be objective understanding of Dasha River water environment situation, investigate the main pollutant sources within Dasha River basin, and make some measures to restore the water environment of Dasha River after analysis.In this paper, we analyzed water quality monitoring data of11kinds of main pollutants in four monitoring points (Lejia, Yuantai, Maijia and Liuda reservoir) locate along Dasha River from2006to2009. By using principal component analysis method, we carried on the research and drew the following conclusion:(1) Located upstream of the Dasha River, the water quality of Lejia point and Liuda reservoir point is generally good (grade Ⅱ) without water pollution, and the self purification capacity of Liuda reservoir is also very strong, therefore, the upstream water quality has been good.(2) In the middle stream of the Dasha River, water quality of Yuantai point is slightly polluted(grade Ⅲ).(3) Located downstream of the Dasha River, water quality of Maijia point is grade IV, water quality was polluted greatly. In Dasha river basin, there has built some chemical fertilizer plants, oil plants, cement plants by downstream river and their pollutants lead to a significant degree of pollution.

Related Dissertations

  1. Regional Water Environment Pressure Zoning Based on GIS,X321
  2. Dalian Waters Fire-fighting Forces Deployment Scheme Research,U698.4
  3. Highland lakes Lakes sustainable development assessment system and model,X22
  4. Application of Improved Principal Component Analysis Algorithm in Course Construction,G642.4
  5. The Reaserch and Application of Fuzzy AHP,O225
  6. The Selection of Leading Industry and Industry Distribution in Environmentally Vulnerable Area,X321
  7. The Load Research and Comprehensive Evaluation on the Agricultural Non-Point Source Pollution in Nantong,X592
  8. Research on the Soil Environmental Function Zoning,X321
  9. Spatial Analysis and Pollution Evaluation about Water Environment Actuality of Rural Surface Water in Typical Regions of Jiangsu Province,S271
  10. Study on Fuel Supply of Henan Straw Power Generation,TM619
  11. A Comprehensive Evaluation of Heritage Trees,S788
  12. The Factors of Knowledge Sharing to Learners in Virtual Learning Community,G434
  13. Study of Evaluation System on Security Management of HS Company,F426.21
  14. Construction of the Social Assessment Model for the University,G647
  15. Research on the Early-warning Technical System for the Water Environment of the River Network,X853
  16. Research of Diagnosing Cucumber Diseases Based on Hyperspectral Imaging,S436.421
  17. The Impact of Tourism on Typical Vegetation in Luya Mountain Nature Reserve, Shanxi Province,S759.9
  18. Mine water inrush investigation Risk Assessment,TD745
  19. Dairy Enterprise Competitiveness Evaluation System,F224
  20. Road Traffic Safety Comprehensive Evaluation Method,U492.8
  21. Macaca mulatta palm morphological study of pattern ridge count,Q954

CLC: > Environmental science, safety science > Environmental Quality Assessment and Environmental Monitoring > Analysis and Evaluation of Environmental Quality > Water Quality Assessment
© 2012 www.DissertationTopic.Net  Mobile