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Validation of the Integrated Biosphere Simulator in simulating the potential natural vegetation map of China

机译：集成生物圈模拟器在模拟中国潜在自然植被图方面的验证

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摘要

The Integrated Biosphere Simulator (IBIS)—a Dynamic Global Vegetation Model—was validated by simulating the potential natural vegetation map of China using data on monthly mean climate from 1961 to 1990, soil texture, and topography. Although the vegetation map simulated by IBIS was able to describe the sketch of vegetation patterns in China, the distributions of several plant functional types (PFTs) and vegetation types were still simulated incorrectly, especially in eastern temperate areas, southern subtropics, the southern Sichuan basin, and the Hengduan mountains area. By adjusting some of the climatic constraints and physiological parameters of PFTs denned in IBIS, the simulated distributions of PFTs became reasonable, and the simulated vegetation map fitted the natural vegetation map better. The kappa statistic between the simulated and the natural vegetation maps was 0.76, an increase of 16.9% from the previous parameter adjustment of 0.65. Correspondingly, the degree of agreement between these two maps rose from "good" to "very good". After the parameter adjustments, IBIS became more suitable for the large-scale simulation of Chinese natural vegetation distributions and could provide a powerful support to reveal the dynamic responses of terrestrial ecosystems to climate change in China.
机译：通过使用1961年至1990年月平均气候，土壤质地和地形的数据模拟了中国潜在的自然植被图，对综合生物圈模拟器（IBIS）（一种动态的全球植被模型）进行了验证。尽管IBIS模拟的植被图能够描述中国的植被格局草图，但仍无法正确模拟几种植物功能类型（PFT）和植被类型的分布，特别是在东部温带地区，南亚热带，四川南部盆地，横断山区。通过调整IBIS中定义的PFT的一些气候约束和生理参数，PFT的模拟分布变得合理，模拟植被图更好地拟合了天然植被图。模拟和自然植被图之间的kapp统计量为0.76，比先前的参数调整0.65增加了16.9％。相应地，这两张地图之间的一致性从“好”上升到“非常好”。调整参数后，IBIS变得更适合于中国自然植被分布的大规模模拟，并且可以为揭示中国陆地生态系统对气候变化的动态响应提供有力的支持。

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  • 来源
    《Ecological research》 |2011年第5期|p.917-929|共13页
  • 作者

    Quan Zhi Yuan; Dong Sheng Zhao; Shao Hong Wu; Er Fu Dai;

  • 作者单位

    Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences, No. 11 A, Datun Road,Anwai, Beijing 100101, China,Graduate University of the Chinese Academy of Sciences,Beijing 100049, China;

    Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences, No. 11 A, Datun Road,Anwai, Beijing 100101, China;

    Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences, No. 11 A, Datun Road,Anwai, Beijing 100101, China;

    Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences, No. 11 A, Datun Road,Anwai, Beijing 100101, China;

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  • 正文语种 eng
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  • 关键词

    integrated biosphere simulator; potential natural vegetation; plant functional types; parameter adjustments; china;

    机译：综合生物圈模拟器;潜在的自然植被;植物功能类型;参数调整;中国;

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