共生理论视角下创新农业生态经济研究范式

共生理论认为异质共生生物在其生存过程中会表现出相互依存的关系。试图将这一论点移植到农业生态经济研究中,用以处理农业生产中生态效益与经济效益之间矛盾的问题。为此,把农业生态经济视为由生态单元与经济单元组成的异质共生体,分析了该共生体的结构与共生模式,并采用Logistic方程与数值模拟方法,探讨农业生态经济共生体的共生机制,揭示共生单元间的演化规律与成长特征。研究表明:共生模式在农业实践上创新应用的主要目标是将共生体从寄生共生模式向互惠共生模式转型,并提出正向转型的激励策略。共生单元的选择必须具有兼容性,共生单元间有明确的共生界面,促使物质、能量和信息的交流,以增加共生体内自由能。共生关系正向发展要遵循共生演进规律,偏利共生模式是演进到互惠共生模式的必经过程。培育互惠共生适存的共生环境对促进共生体演进至关重要。这些研究成果为农业生态经济研究提供一个新范式,并开创一条研究新思路与方法。

Innovative research paradigm of agricultural eco-economy from the perspective of symbiosis theory

Symbiosis theory reveals that creatures with heterogeneous symbiosis are interdependent with each other during the survival period. The present study attempts to place this theory into the eco-economy research field to solve the contradiction problems between ecological benefit and economic benefit in agriculture. For this purpose, the agricultural eco-economy was regarded as a heterogeneous symbiont consisting of an ecological unit and an economic unit. The structure and symbiotic patterns of the eco-economy symbiont were analyzed. The symbiotic mechanism of the eco-economy symbiont was explored with the Logistic equation and numerical simulation. The evolution rules and formative characteristics of the symbiont were revealed. The research showed that the main goal of innovative applications of symbiosis models in agricultural practices is the regulation of the symbiont to transform from the parasitism model to the mutualism model, and the excitation strategy of the positive transition was proposed. The choice of symbiotic units must be of a compatible nature and there must be a clear symbiotic interface between symbiotic units, prompting the exchange of matter, energy and information for enhancing the number of free energy within the symbiont. The positive development of a symbiotic relationship follows the rules of symbiotic evolution,the commensalism model is an inevitable process of the evolution to reach the mutualism model. Fostering the symbiotic environment for mutualism is very important for the evolution of the symbiont. The research results provide a new paradigm and opens up new thoughts and methods for research of the agricultural eco-economy.