Study On The Status And The Countermeasures Of The Agricultural Industry In Baiyun Town,Zitong County

In this research,the agricultural ecosystem of Baiyun Town was studied.The energy flow and nutrient balance of its sub-system,such as agricultural industrial structure,planting,orchard and woodland,animal husbandry,fishery were analyzed.The comprehensive evaluation of agro-ecosystem was carried out through using yaahp software,Delphi method and Analytic hierarchy process?AHP?and on the basis of this;the eco-agriculture regions were divided.Through a series of empirical analysis,this study drew the following main conclusions:?1?Through energy flow analysis,it was obtained that the average level of artificial auxiliary energy input and the ratio of energy output to input were 12.59×10¹⁰J/hm² and2.79 respectively.However,the level of artificial auxiliary energy and energy output was high.The structure of energy input,average input of organic energy and input of inorganic energy were 0.80,5.60×10¹⁰J/hm² and 6.99×10¹⁰J/hm² respectively.Moreover,the use of agricultural fertilizer was greater.The whole organic energy input and energy flow cycle index were lower.The energy circulation index of the whole energy flow was 0.44,the energy structure of planting and aquaculture was unreasonable.The utilization efficiency of organic energy was low,the stability of agricultural ecosystem was poor,and the ability to resist disasters was low.LuoBao,BaoCheng,Hui Shui,Jiulin,these four villages'organic investment was low.?2?The utilization ratio of light energy in the subsystem of planting industry was1.6%,and the overall utilization rate of light energy was still on the low side.The light energy utilization ratio of each crop followed the trend as corn>rice>peanut>soybean>potato>sweet potato>wheat>pea>rape.?3?The output of forest land subsystem in orchard was 1.82,artificial auxiliary energy input mainly consisted of inorganic energy,but less organic energy,and the structure of energy input was not reasonable.Chemical fertilizer,pesticide and electric power accounted for 23.7%,19.5%and 20.3%respectively.LuoBao village's orchard output was relatively low.?4?The ratio of output and input of animal husbandry in Baiyun town was 0.55,which was at a high level.The order of output and input ratio of each village in animal husbandry subsystem was:YuLong village?0.97?>ChangChun village?0.90?>LuoBao village?0.47?>HuiShui village?0.43?>BaoCheng village?0.42?>HongHua village?0.40?>JiuLin village?0.35?.Jiulin and Honghua Village also have greater room for development,beef cattle and mutton production capacity was low,the scale of aquaculture was at bottom.?5?The ratio of total output to input of fishery subsystem in BaiYun Town was 0.52,which developed well,but there was a great difference among different villages.The ratio of output to investment in safflower village was only 0.11,and that in YuLong village was0.33.?6?Through the analysis of logistics,in the nutrient cycle of plant industry subsystem in Baiyun town,the whole town has surplus state of nitrogen,phosphorus and potash fertilizer,and the phenomenon of unreasonable fertilization exists in Baiyun town.The input N was 594.82 kg/hm²?P ₂O₅ was 193.01 kg/hm²?K₂O was 360.70kg/hm².The input ratio of N,P₂O₅ and K₂O was 3.06:1:1.82.The N and P of the seven villages were all in surplus state.LuoBao and HuiShui Village were in a state of loss of potassium.?7?The comprehensive level of sustainable development of agricultural ecosystem in BaiYun Town was analyzed by yaahp software.BaiYun town agricultural ecosystem as a whole showed a good upward trend of development,but the internal structure of each system is unreasonable and uncoordinated.From 2012 to 2015,the integrated level of sustainable development of BaiYun town agri-ecosystem showed an upward trend,from0.99 in 2013 to 1.11 in 2016.The development of agricultural economic system as a whole is increasing gradually.The overall agricultural ecosystem fluctuated not much,but presented a downward trend.The development of agricultural environmental system fluctuated greatly,showing a trend of decline and rise and then decline.The overall development of agricultural social system showed an upward trend.?8?On the basis of the above analysis,BaiYun Town is divided into three regions according to the principle of regionalization,the structure of agricultural ecosystem and the industrial superiority of every village in BaiYun Town."HuiShui-HongHua"grain and oil crop ecological area,"LuoBao–BaoCheng-ChangChun"agricultural cycle ecological area,"Jiulin-Yulong"characteristic agricultural ecological area,and determined the main ecological agriculture mode of transformation and development of each region.