primary succession

Primary succession is the result of interaction between BDF ( biological driving forces ) and ER ( environmental resistances ), and the way in that the primary succession proceeds depends on the growth and decline in BDF and ER .

植被原生演替是生物驱动因素与环境阻力相互作用的结果，二者的消长决定原生演替进行的模式。

The community was in primary stage of succession , or was disturbed severely by outside .

群落尚处在演替初期阶段，或群落受到外界严重干扰。

In this format is to adjust the strategy to expand product range to meet the low-end market price , is still focused on primary and secondary succession of high-end market , Dig ?

在这种格式下，是要调整战略、扩大产品价格范围以适应低端市场，仍是继承专注于一二级高端市场的深掘？

The system can induce the action of people , and the action of people can influence the ecological environment , and the system is the primary inducement factor for succession of ecosystem in the arid region .

制度将诱导人的行为，而行为会影响生态环境质量，制度是干旱区生态环境演替的主要诱因。