understory
英
美
n. 下层；下（层林）木；下层植物
COCA.24746
双语例句
- Topographic Correlates of Understory Plant Species Distribution in Nanling National Nature Reserve, Guangdong
南岭国家级自然保护区林下植物分布的地形相关性 - Relationship Between Soil Moisture of Robinia pseudoacacia Forests and Aboveground Biomass of Understory Vegetation
刺槐林地土壤水分与林下植物生物量的关系 - Ecological Characteristics of Understory Plants of Four Artificial Forests in Karst Mountain Area of Southern Yunnan
滇南岩溶山地4种人工林林下植物群落学特征比较 - Effects of Adult Tree Density, Distance to Coast and Understory on Natural Regeneration of Pinus thunbergii Coastal Protection Forest in Yantai Region
成年个体密度、距海远近及下层植被对烟台黑松海防林天然更新的影响 - Effects of Understory Vegetation Litter Fall on Soil Animal Community in Chinese Fir Forest
杉木林林下植被凋落物对土壤动物群落的影响 - Spatial heterogeneity of understory soil physical properties for Picea schrenkiana var. tianschanica in the Tianshan mountains
天山云杉林下土壤物理性质空间异质性研究 - Biomass and Niche Characteristics of Understory Herb Layers in Three Types in the Eastern Mountain Area of Liaoning Province
辽东山区3种林型林下草本层生物量及生态位特征 - Amid the trees, half-concealed by a spreading understory, lie aluminum dishwasher parts and stainless steel cookware, their plastic handles splitting but still solid.
林木之中，郁郁葱葱的林下叶层半掩着铝制的洗碗机散件和不锈钢炊具，它们的塑料把手虽已开裂，却依然坚固。 - Effects of human disturbance on understory woody species composition and diversity in fengshui forests
人为干扰对风水林群落林下木本植物组成和多样性的影响 - Human-induced disturbance on the understory plant diversity of urban forest: a case study of Xiamen
人为干扰对城市森林灌草层植物多样性的影响&以厦门市为例 - The effect of Larix understory vegetation on changes of soil nutrient
落叶松林下植被对土壤养分变化的影响 - Study on the species and occurrence regularity of understory weeds on Chongming Island
上海崇明岛林下杂草种类及发生规律研究 - Effects of shrub on understory herbaceous plants and soil properties in the restoration processes of degraded vegetation in Horqin Sand Land
沙地退化植被恢复过程中灌木发育对草本植物和土壤的影响 - Effects of nitrogen deposition on tree growth and understory carbon pools in Chinese fir plantation
氮沉降对杉木人工林生长及林下植被碳库的影响 - The compare of the understory vegetation diversity and biomass of three types of forest
三种类型森林林下植物多样性及生物量比较 - Effects of Pinus massoniana plantation stand density on understory vegetation and soil properties
马尾松人工林林分密度对林下植被及土壤性质的影响 - To understand the characteristics of understory biomass and its ecological effects is of significance in studying the structure and function of forest ecosystem.
研究林下植被的生物量特征及其生态作用对深入研究森林生态系统结构和功能有重要意义。 - Understory vegetation is one of the main components of forest ecosystem.
林下植被是森林生态系统的重要组成部分。 - This paper discussed growth laws of understory plant of Chinese fir plantations in different ages, different site indexes and different rotations The results showed that the mean quantity of understory plant species show mature forest> young forest> middle aged forest;
对不同林龄、地位指数和连栽代数杉木林下植物的生长发育规律进行初步调查分析，结果表明：林下植物种类平均数量表现出成熟林>幼龄林>中龄林的趋势； - Further more, the biodiversity indexes of understory of different communities were calculated and compared, and the feasibility and rationality of this method was analyzed.
本项研究还利用各群落林下植物的生物量调查资料，计算和比较了不同群落林下植物的物种多样性，并探讨了这一方法的合理性和可行性。 - As an integrated reflections of habitat conditions, the relationship between the coverage of tree, shrub and herb layers and abiotic factors showed difference of ecological habits between the understory shrub and herb species.
乔、灌、草的覆盖度是生境条件的综合反映；它们与非生物因子的相关性显示了成熟林下灌木和草本层物种生态习性的整体差异。 - In the Virgin Forests, the coverage of understory plants was reduced and the shrubs and bryophytes were markedly depressed ( both in height and density).
在原始森林景点，较重的旅游干扰明显降低了灌木与苔藓植物的频度和盖度，显著抑制了灌木与苔藓植物发育（高度、密度降低）； - Density of both species during both seasons was directly correlated with decayed downed wood in the understory.
两种鼠在两个季节的密度与林下腐朽的倒木直接相关。 - The results were as follows: 1. Structure of community stand was divided into arbor layer, understory layer and litter layer for researching the community biomass, also, regression of biomass model was used.
研究结果如下：（1）群落的生物量测定采用回归生物量模型，将林分结构划分为乔木层、林下植物和枯枝落叶层，对各层的生物量进行研究。 - Understory plant diversity had the correlation with LAI index and habitat factors, and the correlation size was different.
叶面积指数和生境因子与林下植物多样性均存在相关性，但相关性大小不同。 - The coverage, species richness and diversity of understory vegetation were greatly improved after pruning. Green-pruning played a positive role in improving the forest stability and helping the dominant species 'change.
修枝后杉木人工林的林下植被盖度、种类丰富度和多样性大大提高，人工修枝对提高杉木人工林的林分稳定性和物种优势种的更迭起到一定作用。 - A certain intensity of forest fires interference can increase the species diversity and biomass of understory vegetation.
一定强度林火干扰能提高林下植被物种多样性和生物量。 - The influences of green-pruning on tree growth and productivity, wood physical properties and defects, and on the forest environment conditions, such as understory vegetation and forest soil, were studied.
系统地研究人工修枝对杉木生长和生产力、木材的物理力学性质和主要缺陷，以及林下植被和林地土壤等林分环境的影响作用。 - Though agroforestry system reduced PAR of understory, it prevented midday depression of photosynthesis appeared in crops.
农林复合降低了林下的光合有效辐射强度，但却使林下作物避免了午休现象的出现。 - The order of carbon storage distribution in the stand was soil layer tree layer litter layer understory vegetation layer.
碳储量在林分中分配的大小顺序为土壤层乔木层枯落物层灌草层，土壤层和乔木层是林分碳库的主体，乔木层是林分碳汇的主体。