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首页> 外文学位 >THE INFLUENCE OF THE TERRESTRIAL BIOSPHERE ON SEASONAL ATMOSPHERIC CARBON DIOXIDE: AN EMPIRICAL MODEL (CLIMATE, VEGETATION, SOIL RESPIRATION).
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THE INFLUENCE OF THE TERRESTRIAL BIOSPHERE ON SEASONAL ATMOSPHERIC CARBON DIOXIDE: AN EMPIRICAL MODEL (CLIMATE, VEGETATION, SOIL RESPIRATION).

机译：陆地生物圈层对季节大气二氧化碳的影响：经验模型（气候，植被，土壤呼吸）。

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摘要

A simple global model of the seasonal exchange of CO(,2) between the biosphere and the atmosphere has been developed. The model is climate-driven allowing vegetation types as well as carbon fluxes to adjust to perturbed climates. Output from the model consists of two fluxes--one directed toward the biosphere the other directed toward the atmosphere. The prescription for change in vegetation type in response to climate change is based on annual temperature and precipitation. The carbon fluxes are based on published field and laboratory measurements of photosynthesis and soil respiration, which have been empirically related to climate variables. The biosphere-atmosphere exchanges are tested by comparing predicted atmospheric CO(,2) concentrations with observations at a number of monitoring stations.; Because the model incorporates spatial and temporal variability of vegetation at climate modeling resolution, the carbon fluxes are biologically more realistic than those of earlier global biospheric carbon models. This research is a first step toward relating climatic variables to seasonal properties of vegetation which influence atmospherically-important biospheric exchanges.
机译：一个简单的全球模型的生物圈和大气之间的CO（，2）的季节性交换已开发。该模型是气候驱动的，允许植被类型和碳通量适应受干扰的气候。该模型的输出包括两个通量-一个通向生物圈，另一个通向大气。响应气候变化而改变植被类型的方法是基于年气温和降水量。碳通量基于已发布的田间和实验室对光合作用和土壤呼吸的测量结果，这些测量值与气候变量在经验上相关。通过比较预测的大气CO（，2）浓度与许多监测站的观测值来测试生物圈与大气之间的交换。由于该模型在气候模型分辨率下结合了植被的时空变化，因此碳通量在生物学上比早期的全球生物圈碳模型更为真实。这项研究是将气候变量与影响季节重要的生物圈交换的植被季节特性联系起来的第一步。

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  • 作者

    PRENTICE, KATHARINE CULBERTSON.;

  • 作者单位

    Columbia University.;

  • 授予单位 Columbia University.;
  • 学科 Physical Geography.
  • 学位 Ph.D.
  • 年度 1986
  • 页码 263 p.
  • 总页数 263
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然地理学;
  • 关键词

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