| Intelligent water-saving irrigation could improve the utilization coefficient of water and the profitability of crop production,and it can also reduce chemical fertilizer to the soil and water pollution,alleviate agricultural non-point source pollution.But at present the application of water-saving irrigation area of Zhuji city is only 2.13khm2,constrained by economic,social and ecological factors,intelligent irrigation application area is smaller.Therefore,agricultural park intelligent micro irrigation of Zhuji city is designed in this paper.Based on SWOT analysis,development environment and the demand of intelligent micro-irrigation project in Zhuji city were analyzed,and construction principles and the overall layout were discussed in the thesis,the cost and benefit were also analyzed.The main contents and conclusions of the study are as follows:(1)Results show the technology development have advantages as obvious economic,social and ecological benefits;there are also weaknesses as application basis,cost,user’s ability.Facing the opportunities of increasing importance the government has attached to,higher income level of farmers.Meanwhile,there exist the threats as small land area,lag-behind field fundamental construction.(2)Efficient water-saving micro-irrigation project layout includes the Northern Lake Plain with a construction area of 510.33 ha,389.33 ha in eastern mountain area,and western agricultural park553.67 ha.Among them,to be newly built system covers 451.33 acres,and the other devices of1002 ha need to be upgraded.(3)Zhuji City micro irrigation engineering construction contents include New pavement 67.65 km,62 sets of moisture monitoring facilities,1500 new inspection wells,and drainage ditch excavation volume 29.3km3,backfill 5.8km3.The project is expected to have a total investment amounted to RMB 117.6 million Yuan,including the construction cost of 12.13 million Yuan and irrigation engineering mechanical and electrical equipment and installation costs of RMB 105.48 million Yuan.(4)The implementation of the project will effectively improve the agricultural production conditions of Zhuji city agriculture park,the irrigation guarantee rate in the project area will be increased to90%,and irrigation water use efficiency reached 0.9.It is estimated to achieve an annual festival of saving water and fertilizer and pesticide production of about RMB 67 million Yuan. |
