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- Root biomass density 根生物量密度
- We found that there was a significant correlation between aboveground biomass density and the maximum annual NDVI when expressed as a power function (R 2=0.71, p<0.001). 结果表明 :草地植被地上生物量与当年最大NDVI值具有很好的相关关系 ;两者可以用幂函数很好地拟合 (R2 =0 .;71;p<0
- Root biomass of winter wheat in 0~30 cm and 0~100 cm soil layers was studied using root core and dig sampling method. 用挖坑冲洗法和改良根钻法研究了耕层(0~30cm)和1m土体内冬小麦根系生物量及其空间分布。
- S ratio (belowground to aboveground biomass ratio) has been widely used for estimating root biomass. 利用根冠比(R:S)和地上生物量来估算地下生物量是目前常用的方法，但目前缺乏根冠比的数据。
- Correlation between number of cellulolytic microbe and root biomass was not detected. 细菌和纤维素分解菌数量与根系呼吸显著正相关；
- There were significant difference in root biomass and dry matter among different desertification levels （SLD, MD, SD, and VSD）. 地下根系生物量也呈显著下降的趋势。
- The variety of Baici with low N efficiency had a decreased root biomass compared to other genotypes under N stress condition in the two light intensity. 在不同光照水平低氮胁迫时，氮低效品种白瓷与其它三个品种相比,根系的形态指标均有不同程度的降低。
- Shoot and root biomass of white maize and black maize significantly decreased in Cd and pyrene contaminated soil than that in uncontaminated soil, especially for root biomass. 这种毒害效应多环芳烃和重金属的复合作用比其单独作用要强烈很多[12]。
- We found that roots biomass increased but the ratio of root to shoot decrease with successional stage extend. 一般来说，根系的垂直分布是较浅的，尤其是细根。
- Further more, the research of root biomass and its distribution in succession can provide the new theoretic bases for forest dynamics, also maybe the one focus of the belowground ecology. 在演替过程中，根系生物量及其分布动态的研究，可以为森林群落动态学提供新的理论基础，是未来地下生态学研究的焦点之一。
- The root biomass, stem biomass and total biomass of seedling in gap center plots were ratherish higher than those of seedling in gap middle plots, but the difference was not evident. 经过一个生长季后，林窗中心样地中幼苗的根生物量、茎生物量和总生物量均略高于林窗中部样地的幼苗，但差异并不显著。
- Distribution patterns of Fraxinus mandshurica root biomass, specific root length and root length density 水曲柳根系生物量、比根长和根长密度的分布格局
- SEASONAL DYNAMICS OF FINE ROOT BIOMASS, ROOT LENGTH DENSITY, SPECIFIC ROOT LENGTH AND SOIL RESOURCE AVAILABILITY IN A LARIX GMELINI PLANTATION 落叶松人工林细根动态与土壤资源有效性关系研究
- It is vain to attempt to root out heresy by force. 试图用暴力消除异端邪说是徒劳的。
- Root Biomass of Natural Japanese Red Pine in Yanbian Area 延边地区天然赤松林单木根系生物量的研究
- The gardener tore up the plant, root and all. 园丁把园中的花草树木连根全挖了出来。
- The plant has not struck root yet. 那棵植物还没生根。
- Unhappiness is the root cause of his illness. 不开心是他生病的根源。
- Idleness is the root of all evil. 懒惰乃万恶之源。
- The density of population in this city is very high. 这个城市的人口密度非常高。
