century模型 century model(9)   century model      CENTURY model's application in farmland ecosystem and its parameters' determination      CENTURY模型在农田生态系统中的应用及其参数确定 短句来源      Dynamics of organic C in black soil of Northeast China,simulated by CENTURY model I.Accumulation of soil organic carbon under natural conditions      利用CENTURY模型研究东北黑土有机碳的动态变化Ⅰ.自然状态下土壤有机碳的积累 短句来源      Several SOM models, especially RothC model and CENTURY model, were summarized and analyzed in this paper.      文中对几种SOM模型进行了概述,尤其对有影响的RothC模型和CENTURY模型进行了比较分析。 短句来源      The CENTURY model of soil organic matter developed by Parton and co-workers hasbeen used successfully for grasslands to predict dynamics of C, N, and others nutrition.      CENTURY 模型是由美国科罗拉多实验室的 Parton 和他的工作小组研发的,该模型成功的应用于草地的土壤有机质、N、P 等营养元素的模拟。 短句来源      CENTURY model and its application in farmland ecosystem were introduced; relevant parameters required by CENTURY model and their determination were described in this paper.      就国际上通行的CENTURY模型及其在农田生态系统的应用进行了简介,并就农田生态系统应用CENTURY模型时所需的重要参数及其确定的方式方法加以描述。 表1,参12。 短句来源 更多          “century模型”译为未确定词的双语例句      multiple linear regressive model was used to study the response of forest vegetation carbon storage to the changes of forest land use and climatic factors.      并基于多元线性回归方法和因子分析法探讨了林业用地以及气候因子对中国森林植被碳储量的影响； 同时，结合生物地球化学循环模型CENTURY模型评估了中国森林生态系统的碳收支。 短句来源   相似匹配句对      This improved mixing dielectric model yields an excellent fit to measured data.      模型。 短句来源      Obviously, EVA model turns out a scientific appraisals to motivate the managers.      该模型为： 短句来源      Then the CENTURY structure and themes were introduced and described.      阐述了土壤有机质的生物地球化学循环模型CENTURY结构。 短句来源      CENTURY model's application in farmland ecosystem and its parameters' determination      CENTURY模型在农田生态系统中的应用及其参数确定 短句来源 查询“century模型”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   century model The CENTURY model (Version 4.5) is used to examine temporal and spatial variations of soil organic carbon (SOC) in grasslands on the Plateau for the period from 1960 to 2002. 例句来源       The release of SO42--S was rapid, and was described using either a first or mixed order exponential equation, or (underestimated) by the CENTURY model. 例句来源       The possibilities of increasing soil organic carbon by land management were also estimated through simulations using the Century model. 例句来源       In this study, the sensitivity of the Century model was assessed in regards to uncertainties for soil texture, natural fire return periods, grazing intensities, and climate. 例句来源       The Erosion Productivity Impact Calculator model (EPIC) was recently altered to include algorithms based upon concepts found in the Century model with the exception of a daily time step. 例句来源       更多                    Century models are based on the soil texture and ecosystem functions in which the cycling of C and N are the key factors. A Century model was used to simulate and predict forest ecosystem functions, such as productivity,nutrient dynamics within the Dinghushan Biosphere Reserve. The results indicate that litter removal and shrub cutting affect biogeochemical cycling, reduce soil nutrients and lead to a decrease in long-term forest productivity. The model showed that as tnore biomass was removed, ...             马尾松林是我国华南地区最主要的森林植被类型。为了寻求科学合理的马尾松林利用方式，我们运用Century模型对马尾松林在不同管理措施下包括在严格保护措施下的演替各阶段的土壤有机质、N含量以及生产力进行了模拟预测。结果表明，除去地被物和林下层植物会使土壤肥力降低，导致生产力下降。除去的生物量越多，生产力降低的幅度越大。因此，此种利用方式不符合持续发展的要求，建议予以改变。应用Century模型对鼎湖山森林各演替阶段的生产力进行模拟的结果，证明Century模型可用于森林演替的模拟。 文摘来源          In order to provide a methodological demonstration for the study of C cycle in forest,the CENTURY model was applied to simulate the C cycle in Larix gmelinii forest and to approach the impact of global change on it.The results showed that the Larix gmelinii forest served as a C sink, with an annual net absorption of 2.65t·hm -2 .Cimate change and increased atmospheric CO 2 concentration benefited for the net primary production (CNPP) and net C absorption capacity of forests in North Chin...             利用CENTURY模型模拟兴安落叶松林的C循环并探讨全球变化对其C循环的影响 .结果表明 ,兴安落叶松林是一个C汇 ,年净吸收C 2 .65t·hm-2 .气候变化和大气CO2 浓度增加将对北方森林的生长有利 ,使其净吸收C的能力增强 .温度上升 2℃时 ,兴安落叶松林的植物总生物量和生产力均增加 ,而土壤C含量降低 .降水减少 2 0 %比降水增加 2 0 %时其植物总生物量、生产力和土壤C含量变化的幅度大 ,说明温度是大兴安岭地区森林生长的主要限制因子 . 文摘来源          We applied CENTURY model (version 4.0) to simulate the impacts of forestry management practices on the carbon (C) balance of L. gmelini (Dahurian larch) forest. The model was validated using the observed data of L. gmelini forest ecosystem. The results indicated that L. gmelini forest served as a net C sink of about 2.65 t·hm -2 ·a -1 at present. Forest felling decreased the gross plant biomass and NPP while increased soil C content. When the harvesting rate was increased, the magnitude of t...             在利用大兴安岭地区根河落叶松 (Larixgmelini)林生态系统定位研究站的实际观测资料验证CENTURY模型的基础上 ,探讨了林业经营管理方式对兴安落叶松林碳循环的影响 ,指出 :1)目前兴安落叶松林是一个碳汇 ,每年净吸收碳 2 .6 5t·hm-2 。 2 )砍伐将使兴安落叶松林生物量和生产力下降 ,土壤碳含量则有所增加。干扰强度越大则其植物总生物量、生产力和土壤碳含量变化幅度越大 ,伐后恢复时间也越长。 3)连年去除枯枝落叶处理使兴安落叶松林土壤碳含量下降 ,土壤越来越贫瘠。植物总生物量在前 30年迅速增加 ,之后则趋于稳定。生产力在去除枯枝落叶的前 10年增加 ,之后则逐渐下降 ,到 10 0年时与不去除枯枝落叶的森林生产力相近。不同枯枝落叶去除强度影响之间没有显著差异。 文摘来源   << 更多相关文摘         相关查询: 模型） century 模型 theta模型 ft模型 拨款模型 磁铁模型 主盘模型 析出模型 标准模型 矩阵模型 dicke模型  对查询结果不满意

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