水稻—红螯螯虾种养模式的经济效益分析

Economic Benefit Analysis of Rice-Cherax quadricarinatus Co-farming Model

明确水稻—红螯螯虾种养的经济效益,分析其总效益、净效益、投入产出等,为制定政策以精准支持水稻—红螯螯虾种养模式的推广提供参考。通过访谈调研、查阅台账、问卷调查等方法,跟踪调研了浙江宁波地区20家经营主体近3年的投入产出情况,分析比较了水稻—红螯螯虾共作与水稻单作2种模式的经济效益。结果表明:开展水稻—红螯螯虾共作近3年的平均总收益为139500元/hm2、净收益50835元/hm2,远远高于水稻单作;开展水稻—红螯螯虾共作近3年的平均总投入为88665元/hm2,是水稻单作的2.83倍;开展水稻—红螯螯虾种养近3年的平均产出投入比为1.65,是水稻单作的1.94倍;在水稻—红螯螯虾共作中,净收益的构成为稻虾米占70.6%、红螯螯虾占29.4%,稻虾米对净收益的贡献率大于红螯螯虾。建议政府加大对水稻—红螯螯虾种养模式的支持力度,强化对水稻—红螯螯虾共作模式中基础设施的投入改造、虾苗购买、品牌打造、技术推广与培训等关键环节的扶持力度。

The economic benefits of rice-Cherax quadricarinatus co-farming were clarified,and the total benefits,net benefits,input-output,etc.,were analyzed,which can provide reference for the precise policy support for the promotion of rice�Cherax quadricarinatus co-farming model.The input-output situation of 20 business owners in Ningbo City,Zhejiang Province in recent 3 years was followed up and investigated by interviews and surveys,checking accounts and questionnaires,and the economic benefits of rice-Cherax quadricarinatus co-farming and rice single cropping were analyzed and compared.The results showed that the average total income and net income were 139500 and 50835 yuan/hm2 respectively,which were much higher than that of rice monoculture.In the past three years,the average total investment of rice-Cherax quadricarinatus co-farming was 88665 yuan/hm2,which was 2.83 times that of rice monoculture.The average output-input ratio in recent three years was 1.65,which was 1.94 times that of rice monoculture.In rice-Cherax quadricarinatus co-farming,the composition of net income was 70.6%for rice and 29.4%for Cherax quadricarinatus,and the contribution of rice to net income was greater than that of Cherax quadricarinatus.It is suggested that the government should strengthen support for rice-Cherax quadricarinatus co�farming model,and strengthen support for key links such as infrastructure investment transformation,shrimp fry purchase,brand building,technology promotion and training in rice-Cherax quadricarinatus co-farming model.