減碳視角下北方農(nóng)牧交錯(cuò)帶農(nóng)業(yè)結(jié)構(gòu)調(diào)整法治體系構(gòu)建

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Abstract：The farming-pastoral ecotone in northern China is the climate intersection zone between the semihumid region and the semi-arid region.The adjustment of agricultural structure is an eternal theme in the process of agricultural economic development. From the perspective of reducing carbon emission and increasing carbon sink，and based on ecological priority development，opportunity cost，externality，law and economics， Pareto optimality and othertheoretical basis，this paper used carbon emission model，carbon absorption model， decoupling model and other methods to make an empirical analysis of the carbon emision of farmland ecosystem，carbon uptake of crops perunit area，and the decoupling relationship between carbon emission and agricultural output value. The research conclusion showed that to achieve the purpose of reducing carbon emission， enhancing carbon sink function and developing agricultural economy，the studied areas need to adjust and optimize agricultural structure.In addition，in view of the problems such as increasing oportunity cost，direct economic lossand positive externalities caused by agricultural structure adjustment，this paper puts forward the suggestion of building the legal system of agricultural structure adjustment to stimulate and regulate the agricultural structure adjustment behavior through macro-control and market regulation.

Key Words： Carbon reduction perspective;Northern farming-pastoral ecotone;Structural adjustment of agricul ture;Rule of law system

北方農(nóng)牧交錯(cuò)帶是我國(guó)繼牧區(qū)天然草原之后的第二道生態(tài)安全屏障，其農(nóng)業(yè)產(chǎn)業(yè)表現(xiàn)為農(nóng)田與草地交錯(cuò)分布、農(nóng)牧業(yè)產(chǎn)業(yè)并重的特征，該區(qū)域農(nóng)業(yè)面臨著氣候變化帶來(lái)的影響1，是我國(guó)典型生態(tài)脆弱區(qū)之一，其建設(shè)重點(diǎn)是強(qiáng)化植被修復(fù)與提升水源涵養(yǎng)能力、改善土壤養(yǎng)分3等。（剩余15122字）