secondary productivity meaning in English
次级生产力
Examples
- ( 2 ) the secondary productivity increases quickly in this area , however the effect of coupling between agriculture and animal husbandry is poor
( 2 )区域的次级生产力发展较快，但案例研究表明，农牧系统相互耦合机制尚未形成，农牧业整体上仍处于非协调发展时期。 - 1 . this paper first puts forward the framework of agro - ecosystem productivity constituted by primary productivity . secondary productivity . economic productivity of peasants household , ecosystem services productivity and their evaluation indices , in which the approach of emergy analysis and ecosystem service was introduced and applied after being revised
论文的主要进展归纳如下： (一)本文创造性地提出了由区域初级生产力、次级生产力、农户经济生产力以及生态系统服务生产力四部分组成的农业生态系统生产力分析框架模型及评价指标体系。