北方农牧交错带农业系统生产力研究方法分析

Analyses on agricultural systematic productivity in ecotone between agriculture and animal husbandry in Northern China

提高农业系统生产力是农牧交错带生态恢复与重建的关键所在。农牧交错带区域条件下的农业系统生产力是指植被系统净初级生产力、动物次级生产力、农户经济生产力和生态系统服务耦合的整体生态经济功能。研究农业系统生产力要采取农业系统论、生态系统生态学、恢复生态学、生产力生态学以及生态经济学的交叉方法。图 2 ,表 1,参 2 2。

It was pointed that increasing agricultural systematic productivity(ASP) is a critical issue for the eclogical restoration and reconstruction in ecotone between agriculture and animal husbandry.Under such special conditions of the ecotone region,ASP was considered an integrated ecological-economic functions which include net rpimary productivity(NPP),secondary productivity(SP),economic productivity of farm household(EP) and ecological services value (ESV).ASP can be studied and estimated by means of an inter-disciplinary approach of agro-system theory,ecosystem ecology,restoration ecology,productivity ecology as well as ecological-economics interation.