The Study On Facility Agriculture And Its Irrigation Water In Hebei Province

Facility agriculture is an important part of modern agriculture,which formed an efficient and intensive industry with technology-intensive,labor intensive as the main characteristics,by using land,fund,technology and labor.It can help alleviate agriculture vulnerability led to the restriction of natural environment,provide a lot of vegetables in counter-season to the market,and also can largely satisfy the people diversified and multi-level consumer needs.At the same time,it improves the heat resources utilization,land resource utilization and the water resource utilization,in favor of protecting agricultural ecological environment.So,facility agriculture plays a significant role in ensuring the effective supply of agricultural products and promoting agricultural development and increase farmers’ income.Since the 80s,facility agriculture in Hebei province has developed rapidly.So far,it has become the important province with facility vegetables production and supply of products,making a significant contribution to enrich "vegetable basket" project of Beijing -Tianjin and the whole country.During the 30 years development history,the facility agriculture have changed a lot in many aspects of greenhouse structure.While the present study is only confined to a specific aspect,and the changing and developing process is not summarized systematically , especially lack of system research and summarize in considering the greenhouse structure , irrigation method and irrigation efficiency.Therefore,this paper make clear of each aspect of the facility agriculture development process in Hebei province according to the investigation and summarization,and make us understand the development process clearly,then the development of facility agriculture area in the future is forecasted.The main work is introduced as followings:(1) Take natural climate environment as the main consideration,this paper divide Hebei province into two areas based on the analyzing of the natural environment and environment in facilities: the midland and southern land,northern land.And the two facilities development process is analyzed and summarized from the facility structure types,roof angle,wall width and planting mode.(2) The irrigation facilities development process in Hebei province is studied and analyzed.Considering the practical present development of Hebei province,the low pressure pipe lines for water conveyance irrigation and drip irrigation under the film are selected as typical irrigation mode.Irrigation benefit is analyzed and calculated from the water-saving amount and water productive efficiency.(3) The different types facility areas is counted from 2000 to 2008,and the facility area development is analyzed and summarized.Finally,the facility agriculture areas of every district in developing year is forecasted with grey GM (1,1) model.