中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Comparison between artificial restoration and natural recovery in vegetation regrowth following high-frequency fire disturbances in the Hengduan Mountains, Southwest China

文献类型:期刊论文

作者Zhang, Xiyu4; Yin, Gaofei3; Ma, Yongzhi1,2; Fan, Jianrong4; Zhou, Jun4
刊名ECOLOGICAL INDICATORS
出版日期2024-10-01
卷号167页码:13
关键词Forest fires Post-fire vegetation responses NIRv Fire severity Post-fire management and restoration Subtropical forest ecosystems
ISSN号1470-160X
DOI10.1016/j.ecolind.2024.112692
英文摘要

The Hengduan Mountains in Southwest China are currently facing a recurring and escalating threat of forest fires, posing a significant challenge to vegetation restoration efforts given the ecological value of this region. However, the effects of artificial restoration compared to natural regeneration on vegetation recovery dynamics have been less explored. This study focused on two sites in the Hengduan Mountains, primarily composed of conifer forests. One site employed a mix of artificial restoration measures, including tree planting, aerial grass seeding, and fertilizer application. The other site, which is relatively drier and colder, relied on natural regeneration. Four fire events in these two sites were compared to examine the effects of artificial restoration on vegetation recovery using remotely sensed data from Landsat and MODIS. Fire severity was classified using the differenced Normalized Burn Ratio (dNBR) and validated with field samples. Vegetation greenness loss and recovery trajectory were quantified using the near-infrared reflectance of vegetation (NIRv). The effects of artificial restoration were further analyzed after employing unburnt controls to minimize the impact of climate fluctuations. Results showed that fire severity mapping achieved an overall accuracy of 82%. The average NIRv loss across the four fires was 30%, 49%, and 69% in areas of low, moderate, and high severity, respectively. In low severity areas, natural and artificial recovery rates were similar, at 21% and 26% respectively, three years post-fire. In moderate severity areas, artificial restoration achieved a 46% recovery rate compared to 31% for natural recovery. In high severity areas, artificial restoration resulted in a 63% recovery rate versus 45% for natural recovery. Although the differences in recovery patterns may also be attributed to inherent variations in the vegetation composition, physical environment, and their interactions, this study suggests that high severity areas benefit significantly from artificial intervention for rapid recovery. Future studies should include more controlled experiments at the plot scale to further elucidate the processes of vegetation response to different artificial restoration measures.

WOS关键词SPATIAL-RESOLUTION ; BURN SEVERITY ; MIXED PIXELS ; FOREST ; RESILIENCE ; PSEUDOREPLICATION ; PERFORMANCE ; LANDSAT-7 ; SERIES ; TM
资助项目Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0603] ; Sichuan Science and Technology Program[2024YFHZ0178] ; Western China Youth Scholar Program of Chinese Academy of Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001334352900001
出版者ELSEVIER
资助机构Second Tibetan Plateau Scientific Expedition and Research Program ; Sichuan Science and Technology Program ; Western China Youth Scholar Program of Chinese Academy of Sciences
源URL[http://ir.imde.ac.cn/handle/131551/58467]  
专题成都山地灾害与环境研究所_数字山地与遥感应用中心
通讯作者Fan, Jianrong
作者单位1.Xichang Seedling Stn, Xichang 615000, Peoples R China
2.Xichang Forestry & Grassland Bur, Xichang 615000, Peoples R China
3.Southwest Jiaotong Univ, Fac Geosci & Environm Engn, Chengdu 610031, Peoples R China
4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610299, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Xiyu,Yin, Gaofei,Ma, Yongzhi,et al. Comparison between artificial restoration and natural recovery in vegetation regrowth following high-frequency fire disturbances in the Hengduan Mountains, Southwest China[J]. ECOLOGICAL INDICATORS,2024,167:13.
APA Zhang, Xiyu,Yin, Gaofei,Ma, Yongzhi,Fan, Jianrong,&Zhou, Jun.(2024).Comparison between artificial restoration and natural recovery in vegetation regrowth following high-frequency fire disturbances in the Hengduan Mountains, Southwest China.ECOLOGICAL INDICATORS,167,13.
MLA Zhang, Xiyu,et al."Comparison between artificial restoration and natural recovery in vegetation regrowth following high-frequency fire disturbances in the Hengduan Mountains, Southwest China".ECOLOGICAL INDICATORS 167(2024):13.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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