先驱者和演替植物群落据说是以1-500年的时间区间变化的。
Pioneer and successional plant communities are said to change over periods from 1 to 500 years.
利用生态学和经济学统计方法分析了1950-2000年庙岛群岛海岸带农田生态系统服务价值的演替变化。
The successive variation in ecosystem service value of farmland in Miaodao archipelago from 1950 to 2000 is analyzed by using ecological and economics methods.
最后一次耕种，特别指最后一次耕种的耕种面状况、有无翻耕是影响当地弃耕地植被演替路径的两个重要因素。（3）弃耕早期阶段弃耕地往往会被周边某种离它较近的一年生草本所占据。
Particularly last time tillage and plowed or not were significant elements that affecting the succession way in the locality(. 3)At early stage, the old-fields were often occupied by annual herbs.
应用推荐