second growth中文什么意思

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The ground was low and covered with a second growth of grey-green willows .
地勢很低洼，長滿了人工種下的灰綠色的柳樹。
It ' s the most well preserved river valley second growth forest in asia
它是亞洲保存最完整的河谷次生林。
Probe into the effective paths and methods for transforming the low - efficiency second growth
低效次生林改造的有效途徑和方法探討
Physiognomy classifies forests based on their overall physical structure or developmental stage ( e . g . old growth vs . second growth )
地貌樣式林根據(jù)它們整體物質(zhì)結(jié)構(gòu)或發(fā)展階段（例如原生和次生）。
The abundant degree of plants , seed seedling amount , and the diversified index in the seed bank of the urban green land are lower than the natural second growth forest in outer suburbs
城市綠地土壤種子庫中種的豐富度、種子苗量、多樣性指數(shù)均不如遠郊區(qū)山地天然次生林。