soil productivity 土壤生产力 ; 地力 ; 土壤地力 ; 土地生产力 Productivity growth 生产率增长 ; 生产率成长率 ; 生产率增长 ; 生产率成长率 .
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土壤动力学与地震工程 SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
本文从育林措施、气候、土壤、人工林群落结构、树种等方面概述了引起地力衰退的主要因素和应对策略。
This paper treats of the causes of site productivity decline of artificial forest, including planting methods, climate, soil, population structure, species and the proper measures.
玉米秸秆还田可以培肥地力,平衡土壤养分。
Corn straws as fertilizers may make the soil fertile and balance the nutrients.
农田土壤质量评价是耕地地力升降实行奖惩使用的前提。
Farm soil quality appraise is the prerequisite to realize the system of rewards and punisher - ents for using farm.
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