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sample plotting中文是什么意思

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  • 例句與用法
  • Within the stand one sample plot is laid down, often covering a large part of the stand .
    在群落片段范圍內(nèi)設(shè)置一個樣地，通常應(yīng)占據(jù)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，如果在某個地區(qū)內(nèi)只在某單塊抽樣小區(qū)內(nèi)采樣，那末就可能得到某種較為含糊的結(jié)果。
  • The species diversity was richer, and diversity indexes varied with different sample plots
    根據(jù)物種多樣性分析的結(jié)果，小隴山白皮松物種多樣性較豐富，不同樣地多樣性指數(shù)差異較大。
  • 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)根據(jù)大量的樣方調(diào)查分析結(jié)果，結(jié)合黃河三角洲濕地植被演替過程的研究結(jié)論，得出了濕地植被形成和演替的規(guī)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個采樣點的實測水文、水質(zhì)、氣象等資料作為輸人因子，建立了訓(xùn)練樣本、檢驗樣本和測試樣本，并以各采樣點的浮游植物量作為輸出因子。
  • 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
    本研究樣本數(shù)據(jù)的特點之一是每個樣本地塊都有80年代初和2000年兩個時期的4個土壤肥力因子的觀測值，同時兩個時期的土壤采樣季節(jié)、技術(shù)以及實驗分析方法等基本相似，這保證了土壤肥力數(shù)據(jù)具有完全的可比性。
  • 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
    本研究樣本數(shù)據(jù)的特點之一是每個樣本地塊都有80年代初和2000年兩個時期的4個土壤肥力因子的觀測值，同時兩個時期的土壤采樣季節(jié)、技術(shù)以及實驗分析方法等基本相似，這保證了土壤肥力數(shù)據(jù)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
    在中國西北黃土高原地區(qū),水分是樹木生長發(fā)育的主要限制因子.根系分布特征由于反映了樹木對環(huán)境條件的利用程度而具有更加特殊的生態(tài)意義.本研究選擇陽坡和陰坡不同立地上年齡一致的刺槐林調(diào)查了根系分布特征.根系垂直分布特征的調(diào)查結(jié)果表明,在所有立地上,根系生物量隨著深度的增加而降低,其中細(xì)根的分布深度大于粗根的分布深度.方差分析結(jié)果表明:不同立地上不同徑級根系的分布特征也有明顯的差別,粗根是差異存在的主要原因,陰坡立地上的根系生物量,特別是細(xì)根生物量大于陽坡立地上的.對根系消弱系數(shù)的分析結(jié)果表明,陰坡立地上的根系消弱系數(shù)大于0.982,而陽坡立地上的根系消弱系數(shù)小于0.982,說明陰坡立地上刺槐根系的生物量在深層土壤中的分布相對量更大一些.其中細(xì)根的根系消弱系數(shù)大于粗根的,這種根系分布特征有利于根系對深層土壤水分養(yǎng)分的吸收利用,進(jìn)而促進(jìn)樹木地上部分的生長發(fā)育.圖3表3參15
  • 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
    本文選擇有機質(zhì)、全氮、速效磷和速效鉀4個與農(nóng)作物生長發(fā)育密切相關(guān)的土壤化學(xué)指標(biāo)作為土壤肥力的基本分析指標(biāo)；選取東北、華北和長江中下游3個地區(qū)，包括黑龍江、吉林、北京、河北、江蘇和浙江6個省份15個縣市180個樣本地塊。
  • 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
    本文選擇有機質(zhì)、全氮、速效磷和速效鉀4個與農(nóng)作物生長發(fā)育密切相關(guān)的土壤化學(xué)指標(biāo)作為土壤肥力的基本分析指標(biāo)；選取東北、華北和長江中下游3個地區(qū)，包括黑龍江、吉林、北京、河北、江蘇和浙江6個省份15個縣市180個樣本地塊。
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