Study On Paddy Field Use In Fujin County

Rice is the crops with high yield and economic benefit.The development of paddy production plays an important role in increasing food production and fanners’ income, improving people’s lives, and developing the national economy, so that the optimal development scale of Paddy is a matter which should be concerned in the agricultural production.However,the detennination of the optimal scale of the paddy development is a study of the many influencing factors and decision-making is a complex project,which is affected by the agricultural policy, the national financial resources, the rural economy, the natural conditions, soil and water resources, water conservancy construction, water conservancy science and technology, agricultural technology.The Songliao Basin of Northeast China and the Sanjiang Plain, Known as the"Northern Granary"is one of the world’s three large black land.Sanjiang Plain is an important production base of the national commodity grain.Since the founding of New China, the agriculture in the Sanjiang Plain, has been developing rapidly and then it becomes an important commodity grain base in China nowadays.Fujin county is lacated in the northeast of Heilongjiang Province, and close to the south bank of the Songhua River, the Sanjiang Plain regional tectonic constraints on the Sanjiang Plain, fonning a hilly scattered wide, low plains of the vast expanse of the overall layout.Fujin resources territory fertile infinite, magnanimous as a whetstone, and high-quality rice, wheat, soybeans, corn areas that specialize.Agricultural base, is the hometown of Chinese soybean, the "eco-agricultural experimental counties, national food production advanced counties, State Key agricultural technology demonstration area and an important commodity grain production base.However, the uneven geographical distribution of the city in a temperate continental monsoon climate, surface water, inter-annual variation large,even distribution during the year, and surface water resources development and utilization of low degree, the ability to withstand natural disasters, poor, resulting in floods and droughts in disaster frequent occurrence;Plus large area for many years, land reclamation, wetland area of a large number of narrow, natural vegetation was severely damaged wet land ecosystem degradation, serious soil erosion, soil fertility decline, causing the land yield is not high, the total output instability, deteriorating ecological environment.In particular, is a substantial development of paddy field area in recent years, leading to excessive groundwater extraction, falling water tables,groundwater resources in dynamic equilibrium was severely damaged.These factors have restricted the sustainable development of agriculture in Fujin county.Therefore of great significance to study paddy field development of appropriate scale to ensure that food production continues to grow, to achieve maximum economic efficiencyMain contents and conclusions are as follows:(1) Sanjiang Plain four reclamation of the period distribution of the climax, and in recent years Statistical Yearbook especially Reclamation Statistical Yearbook "statistical position of the arable land in Fujin county, select the1976、1986、1996and2007topographic maps of the study area, remote sensing image,Vegetation maps reflect the land use maps of the use of information, analysis of water, land use status.(2) Paddy field development measure appropriate scale. Considering the global change, the national food demand, regional economic development, land resources situation, especially the potential of water resources sustainable utilization, this paper discusses the different situations sanjiang plain moderate size of northern paddy field development, this paper puts forward the development and utilization of paddy scheme, the number of paddy fields and layout, paddy field, protection, land consolidation and renovating the problems are discussed. According to the model calculation, when paddy field development to270240hectares, a dry land529960hectares, the irrigable land20ha can achieve economic benefit maximization10.3363billion yuan. When paddy field development area of more than this value, the water supply shortage could, with a serious loss of underground water level and cause a series of ecological environment problems.(3) The water and soil resources comprehensive utilization countermeasures. According to FuJin county paddy field development and utilization of existing problems, and based on this area of the water and soil resources situation, according to our country in recent years in land resources management and ecological construction, agriculture, rural areas and farmers policy, and other aspects of the major policy and the reform direction, put forward Fujin county and even northern sanjiang plain and water resources utilization, especially the development of strategic paddy and concrete measures:optimization paddy field use layout, reasonable development paddy fields; Save water resources, water resources optimization allocation; This in the middle-and-low-yielding fields, improving yield; In the early work, strengthening the irrigation irrigation and drainage engineering construction; Training agricultural technical personnel, increase the per capita quality.