Modelling the integrated effects of land use and climate change scenarios on forest ecosystem aboveground biomass, a case study in Taihe County of China

Modelling the integrated effects of land use and climate change scenarios on forest ecosystem aboveground biomass, a case study in Taihe County of China
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模拟土地利用和气候变化情景对森林生态系统地上生物量的综合影响——以中国太和县为例

DOI:
10.1007/s11442-017-1372-x
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发表时间:
2017-02
影响因子:
4.9
通讯作者:
Wang Xiaofan
Wang Xiaofan
中科院分区:
地球科学2区
文献类型:
--
作者:
Wu Zhuo;Dai Erfu;Ge Quansheng;Xi Weimin;Wang Xiaofan

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土地利用、气候变化等全球和区域环境变化对森林具有显着的综合性、交互性影响。这些综合效应无疑将改变森林生态系统的分布、功能和演替过程。为了适应这些变化,有必要了解它们的单独和综合影响。在这项研究中,我们提出了一个使用耦合模型的框架,以更好地理解复杂的生态过程。结合基于主体的土地利用和土地覆盖变化模型(ABM/LUCC)、生态系统过程模型(PnET-II)和森林动态景观模型(LANDIS-II),模拟了以亚热带针叶林为主的中国南方太和县2010-2050年土地利用和气候变化因素驱动的森林地上生物量(AGB)的变化。我们进行了一系列土地利用和气候变化情景,以比较森林 AGB 的差异。结果表明:(1)土地利用,包括城镇扩张、森林砍伐和森林转化以及气候变化可能对太和县近期森林AGB产生影响。 (2)虽然气候变化对森林AGB的增加有良好的贡献,但土地利用变化会导致森林AGB的快速减少,在综合模拟中发挥着至关重要的作用。到2050年,综合情景下的森林AGB将分别下降53.7%(RCP2.6+土地利用)、57.2%(RCP4.5+土地利用)和56.9%(RCP8.5+土地利用),这与没有土地利用干扰的单独RCP下的结果相比。 (3)该框架可以提供耦合方法来更好地理解复杂且相互作用的生态过程,这可以为适应土地利用和气候变化、改善和优化人工林结构和功能、制定可持续森林管理措施提供一定的支持。
Global and regional environmental changes such as land use and climate change have significantly integrated and interactive effects on forest. These integrated effects will undoubtedly alter the distribution, function and succession processes of forest ecosystems. In order to adapt to these changes, it is necessary to understand their individual and integrated effects. In this study, we proposed a framework by using coupling models to gain a better understanding of the complex ecological processes. We combined an agent-based model for land use and land cover change (ABM/LUCC), an ecosystem process model (PnET-II), and a forest dynamic landscape model (LANDIS-II) to simulate the change of forest aboveground biomass (AGB) which was driven by land use and climate change factors for the period of 2010–2050 in Taihe County of southern China, where subtropical coniferous plantations dominate. We conducted a series of land use and climate change scenarios to compare the differences in forest AGB. The results show that: (1) land use, including town expansion, deforestation and forest conversion and climate change are likely to influence forest AGB in the near future in Taihe County. (2) Though climate change will make a good contribution to an increase in forest AGB, land use change can result in a rapid decrease in the forest AGB and play a vital role in the integrated simulation. The forest AGB under the integrated scenario decreased by 53.7% (RCP2.6 + land use), 57.2% (RCP4.5 + land use), and 56.9% (RCP8.5 + land use) by 2050, which is in comparison to the results under separate RCPs without land use disturbance. (3) The framework can offer a coupled method to better understand the complex and interactive ecological processes, which may provide some supports for adapting to land use and climate change, improving and optimizing plantation structure and function, and developing measures for sustainable forest management.
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期刊: Ying yong sheng tai xue bao = The journal of applied ecology
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