Dissertation > Excellent graduate degree dissertation topics show

Assessment of Drought Resistance Ability for Pond and Retaining Dam Irrigated Area of Jianghuai Hilly Region

Author: YuanChenYang
Tutor: JinJuLiang
School: Hefei University of Technology
Course: Municipal Engineering
Keywords: pond and retaining dam irrigated area drought resistance ability agricultural irrigation irrigation water demand pond and retainingdam available water supply Jianghuai hilly region
CLC: S274
Type: Master's thesis
Year: 2013
Downloads: 29
Quote: 0
Read: Download Dissertation

Abstract


Historically, because of natural factors (such as climate condition, geographicenvironment), socioeconomic development, and the influence of human activities,drought disasters happened frequently in Jianghuai hilly region. Especially in thewatershed regions between yangtze river and huaihe river, the drought conflicts gotmore pungent. And the drought disasters have hindered the development ofeconomic production. Surface water resources as the main body of Jianghuai hillyarea water resource, the quantity only account for21.8%of the total waterresources quantity of Anhui, while the arable area of Jianghuai hilly area accountfor31.8%of the total total area of Anhui province. What’s more, the main crop ofthe area is rice, what need great water consumption, this leads to the conflict of thewater resources and water supply. And the unequal rainfall distribution on spaceand time intensifies shortage of water on parts of the area. The varied topographyof Jianghuai hilly area leads many problems to build large-scale water conservancyworks, so ponds and other small-scale reservoirs play the importment role in thewater storage. Recently, however, with the idea of valuing diversion and despisingstorage, filling ponds to make farm land and the development of urbanization, pondis occupied continually. Because of bad management, ponds of most area are siltedseriously, parts of them loss the functions of storage. what make the pond be unableto exert irrigation benefit normally. The above reasons make the quantity andcapacity of pond decrease in some degree. Therefore, the accurate calculation ofdrought resistance ability for pond and retaining dam irrigated area of Jianghuaihilly area has important significance to improve the storage function of pond,regulate reasonably agriculture planting structure, make the scientific droughtprevention and damage control plan, guide the pond construction orderly.According consult literature material and field investigation to get to know thehistory of pond construction, determine the number and capacity and irrigationarea of pond, confirm the change process of agriculture planting structure(such asmultiple cropping index and proportion of the paddy field and dry-farming growth).Based on comprehensive consideration of weather condition, agricultural plantingstructure and the change process of pond construction, the concept and calculationmodel of drought resistance ability for pond and retaining dam irrigated area areput forward from the view of banlance of water supplyment and requirement underthe condition of sufficient irrigation. The model calculate irrigation waterrequirement with the method of Penman-Monteith model and agriculture plantingstructure data, and the pond water supplyment is calculated with water-storagefrequency.The main achievements obtained in thethesis are as follows:(1)collect,research and analyse the quantity, capacity and irrigation area of pond accordingconsult literature material and field investigation, thus sorting out the improvementprocess of pond construction;(2)sort out the change process of agricultural plantingstructure of Jianghuai hilly area from the50’s of20centuries to the beginning of21century according consult literature material and field investigation;(3)calculatethe drought resistance ability for pond and retaining dam irrigated area of Jianghuaihilly area and the five cities from the50’s of20centuries to the beginning of21century, and based on the present situation, propose the method to improve thedrought resistance ability.

Related Dissertations

  1. Crop water requirement under climate change research,S162
  2. Legal regulation of agricultural irrigation water protection,D922.66
  3. Design and Implementation of Irrigation Water Distribution Terminal and Inquiry System Based on J2ME,TP311.52
  4. On Qihe Tianxin reservoir construction necessity,TV62
  5. The Study on the Drought Induced Proteins of Different-Drought-Resistance-Ability Winter Wheat Varieties and Hybridization Progeny,S512.11
  6. Study on the Method and Its Application of Agricultural Water Saving Potential in Hebei Province,S274
  7. Study on Metabolism and Transimission of the Pathogenic Bacteria in Soil after the Treated Water Irrigation,S154.3
  8. Studies on Main Crops’ Evapotranspiration in Hexi Corridor Based on the SIMETAW Model,S311
  9. Research on Agriculture Irrigation Management Programming Under Uncertainty,F323.213
  10. Optimization Study of Rainwater Accumulation and Utilization Project on Slope Agricultural Irrigation in the Hilly Area,S273.1
  11. The Study of Marketing Risk on Xinjiang Tianye Water-Saving Production,F205
  12. The Evaluation of the Surface Water Resource and Utilization on Haoshuichuan Basin,TV213.4
  13. The Design and Implement of Low-power Farmland Irrigation Monitoring-control System Based on ZigBee,TP277
  14. Climate change and human activities on water resources and the impact of case studies,TV213.4
  15. The Study on Prices Accounting Method of Agricultural Irrigation Water,F323.213
  16. The Calculation and Predication of Large-scale Domain Irrigation Water Demand,S274.3
  17. Computing and Study on Irrigation Requirement in Field of Bojili Irrigation District,S274
  18. The Karez culture of the Xinjiang Uygur,G127
  19. Agricultural Irrigation Water Requirement and Its Regional Characteristic in China,S274
  20. Shiyang River Basin crop production potential and irrigation on climate research,S274

CLC: > Agricultural Sciences > Agricultural Engineering > Irrigation and water conservancy > Irrigation system and management
© 2012 www.DissertationTopic.Net  Mobile