sampling plot中文是什么意思

• 采样小区

• sampling    n. 1.取样(品)，取标(本)〔指行动或程序〕。 2. ...
• plot    n. 1.小块地，一块地；一块地上的作物。 2.〔美国〕 ...
• plot sampling core    中心取样
• variable plot sampling    可变区取样
• a plot    一爿田
• by-plot    (小说、戏剧的)从属情节，次要情节。
• plot    n. 1.阴谋(事件)，策划。 2.(小说、戏剧等的)情节。 3.【炮兵】测算表。 hatch a plot 策划阴谋。 be privy to a plot 参与阴谋。 The plot thickens. 情节复杂起来了。 vt. (-tt-) 1.密谋，图谋；策划。 2.绘(图)；画(设计图)。 3.把…记入(海图)。 4.拟定(剧本等的)情节。 vi. 图谋，策划 (for against)。 n. 1.小块地，一块地；一块地上的作物。 2.〔美国〕地基；基址图；【军事】标绘(图)。 an experimental plot 试验田。 reserved private plots 自留地。 a garden plot 园地。 a plot of barley 一块大麦地。 a radar plot 雷达测绘板；雷达情报站。 vt. (-tt-) 区划(土地)；划分。 plot out one's time 分配自己的时间。
• the plot    墓地
• sampling    n. 1.取样(品)，取标(本)〔指行动或程序〕。 2.样品，标本。 3. 剽窃拼凑歌曲。
• a box plot    箱图
• a master plot    最重要的情节
• a plot with blood    血花泪影
• a stupid plot    乏味的剧情
• agricultural plot    家田
• air plot    按无风航迹求推算位置; 航迹战斗部位指挥点; 航空标绘
• alkalized plot    碱化地段
• amenity plot    小园地
• arrhenius plot    阿雷尼乌斯图; 阿累尼乌斯曲线图; 阿利纽斯作图法
• arrow plot    箭头图
• autoradar plot    雷达自动绘图器
• bar plot    条形图
• beer plot    比尔氏图解法
• block plot    方格透明图
• bode plot    波德图; 波迪图; 波特图
• bojinka plot    波金卡计划

• Within the stand one sample plot is laid down, often covering a large part of the stand .
  在群落片段范围内设置一个样地，通常应占据群落片段的大部。
• Thus setting up a single sample plot in an area can produce some rather bewildering result .
  因此，如果在某个地区内只在某单块抽样小区内采样，那末就可能得到某种较为含糊的结果。
• The species diversity was richer , and diversity indexes varied with different sample plots
  根据物种多样性分析的结果，小陇山白皮松物种多样性较丰富，不同样地多样性指数差异较大。
• 5 ) according to the results of investigating and analyzing plenty of sample plots and combing the conclusions of the succession process in the yellow river delta , the formation and succession of the wetland vegetation has two ways
  5 )根据大量的样方调查分析结果，结合黄河三角洲湿地植被演替过程的研究结论，得出了湿地植被形成和演替的规律。
• The training sample , valid sample and test sample were developed , taking data of 26 sample plots from may to october of 2001 as input indicators and phytoplankton biomass of each sample site as output factor
  以2001年5 ~ 10月全太湖26个采样点的实测水文、水质、气象等资料作为输人因子，建立了训练样本、检验样本和测试样本，并以各采样点的浮游植物量作为输出因子。
• Every soil fertility factor was recorded both in the early 1980s and 2000 at the same sample plot . all socio - economic data were derived from interviews with the production team leaders in charge of the sample plots , and were also gathered in both periods . after describing the trends in changes in soil nutrients from the early 1980s to 2000 , the dissertation sets up an econometric model to measure the possible impact of socio - economic factors on soil fertility
  本研究样本数据的特点之一是每个样本地块都有80年代初和2000年两个时期的4个土壤肥力因子的观测值，同时两个时期的土壤采样季节、技术以及实验分析方法等基本相似，这保证了土壤肥力数据具有完全的可比性。
• On the loess plateau , water is the main limiting factors for vegetation growth . root distribution characters have special ecological meaning as it reflected the utilizations of trees to the environments . even - aged stands of robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation . investigatiing results showed that indicated that on all sites , root biomass decreased with depth , and the distribution depth of fine root was deeper than that of coarser root . the results of variance analysis indicated that there were great differences in root biomass among different diameter classes , and coarser root was the main sources of variance , and the root biomass , especially fine root ( < 3mm ) biomass on northern exposition sites was bigger than that on southern exposition sites . analysis of the vertical root distribution parameters , root extinction coefficient , indicated that the value of on northern exposition was more than 0 . 982 , while the value of on southern exposition was less than 0 . 982 , which indicated that the vertical root distribution depth of robinia pseudoacacia on southern exposition was deeper than that on southern exposition . and the distribution depth of fine roots ( < 1mm ) was deeper than that of thicker roots ( < 3mm ) , which was in favor of the uptake of water and nutrients from deeper layers , helped the trees to adapt the arid environment , and promoted the growth of the upper parts of the tree
  在中国西北黄土高原地区,水分是树木生长发育的主要限制因子.根系分布特征由于反映了树木对环境条件的利用程度而具有更加特殊的生态意义.本研究选择阳坡和阴坡不同立地上年龄一致的刺槐林调查了根系分布特征.根系垂直分布特征的调查结果表明,在所有立地上,根系生物量随着深度的增加而降低,其中细根的分布深度大于粗根的分布深度.方差分析结果表明:不同立地上不同径级根系的分布特征也有明显的差别,粗根是差异存在的主要原因,阴坡立地上的根系生物量,特别是细根生物量大于阳坡立地上的.对根系消弱系数的分析结果表明,阴坡立地上的根系消弱系数大于0 . 982 ,而阳坡立地上的根系消弱系数小于0 . 982 ,说明阴坡立地上刺槐根系的生物量在深层土壤中的分布相对量更大一些.其中细根的根系消弱系数大于粗根的,这种根系分布特征有利于根系对深层土壤水分养分的吸收利用,进而促进树木地上部分的生长发育.图3表3参15
• The data used in this dissertation originate from 3 regions in china - the northeast , the north china plain and the mid - lower yangtze river - and cover 6 provinces , 15 counties , and 180 sample plots . the data include information on soil fertility , quality , and corresponding socio - economic data for the households farming the sample plots . the primary soil fertility indicators analyzed are soil organic matter , total nitrogen , effective phosphorus , and effective potassium
  本文选择有机质、全氮、速效磷和速效钾4个与农作物生长发育密切相关的土壤化学指标作为土壤肥力的基本分析指标；选取东北、华北和长江中下游3个地区，包括黑龙江、吉林、北京、河北、江苏和浙江6个省份15个县市180个样本地块。
• By surveying the sample plot , the relations between the stabil ity of the mountai n slope of soil preparation for planting by using explosion and other factors s uch as precipitation , terrain ， were studied . by using the method of quantitative t heory i , the interrelation between the damaged degrees of soil preparation progra ms by using explosion in low mountain area with abundant precipitation and terrain factors was systematically analysed , and the mathematical models relate d were developed . the results show that the precipitation in early days and the m aximum precipitation per day are the primary factors causing the soil prepara tion program damaged . the main terrain factors of the mountain slope that affect the program stability are according to their importance , slope , position and dir ection . the suitable mountain slope for soil preparation by using explosion is th e slope of less than 25
  通过典型标准样地调查资料，探讨了造林爆破整地工程的坡地稳定性与降水、地形等因子的相互关系，应用数量化理论，对在有充分降水条件下的低山丘陵区的爆破整地工程损失程度与地形因子之间的关系进行了系统分析，并建立了相应的数学模型，研究指出，充分的前期降水和日最大降雨量是引起爆破整地工程损失的激发因素；影响爆破整地工程稳定性的主要地形因子是地面坡度，其次为坡位、坡向，实施爆破整地工程的地面坡度以不超过25为宜。
• Abstract : on the loess plateau , water is the main limiting factors for vegetation growth . root distribution characters have special ecological meaning as it reflected the utilizations of trees to the environments . even - aged stands of robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation . investigatiing results showed that indicated that on all sites , root biomass decreased with depth , and the distribution depth of fine root was deeper than that of coarser root . the results of variance analysis indicated that there were great differences in root biomass among different diameter classes , and coarser root was the main sources of variance , and the root biomass , especially fine root ( < 3mm ) biomass on northern exposition sites was bigger than that on southern exposition sites . analysis of the vertical root distribution parameters , root extinction coefficient , indicated that the value of on northern exposition was more than 0 . 982 , while the value of on southern exposition was less than 0 . 982 , which indicated that the vertical root distribution depth of robinia pseudoacacia on southern exposition was deeper than that on southern exposition . and the distribution depth of fine roots ( < 1mm ) was deeper than that of thicker roots ( < 3mm ) , which was in favor of the uptake of water and nutrients from deeper layers , helped the trees to adapt the arid environment , and promoted the growth of the upper parts of the tree
  文摘:在中国西北黄土高原地区,水分是树木生长发育的主要限制因子.根系分布特征由于反映了树木对环境条件的利用程度而具有更加特殊的生态意义.本研究选择阳坡和阴坡不同立地上年龄一致的刺槐林调查了根系分布特征.根系垂直分布特征的调查结果表明,在所有立地上,根系生物量随着深度的增加而降低,其中细根的分布深度大于粗根的分布深度.方差分析结果表明:不同立地上不同径级根系的分布特征也有明显的差别,粗根是差异存在的主要原因,阴坡立地上的根系生物量,特别是细根生物量大于阳坡立地上的.对根系消弱系数的分析结果表明,阴坡立地上的根系消弱系数大于0 . 982 ,而阳坡立地上的根系消弱系数小于0 . 982 ,说明阴坡立地上刺槐根系的生物量在深层土壤中的分布相对量更大一些.其中细根的根系消弱系数大于粗根的,这种根系分布特征有利于根系对深层土壤水分养分的吸收利用,进而促进树木地上部分的生长发育.图3表3参15