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Does Environment Filtering or Seed Limitation Determine Post-fire Forest Recovery Patterns in Boreal Larch Forests?
Cai, Wen H.1,2,3; Liu, Zhihua1; Yang, Yuan Z.2,3; Yang, Jian4
Corresponding AuthorLiu, Zhihua(liuzh@iae.ac.cn) ; Yang, Jian(jian.yang@uky.edu)
2018-09-11
Source PublicationFRONTIERS IN PLANT SCIENCE
ISSN1664-462X
Volume9Pages:12
AbstractWildfire is a primary natural disturbance in boreal forests, and post-fire vegetation recovery rate influences carbon, water, and energy exchange between the land and atmosphere in the region. Seed availability and environmental filtering are two important determinants in regulating post-fire vegetation recovery in boreal forests. Quantifying how these determinants change over time is helpful for understanding post-fire forest successional trajectory. Time series of remote sensing data offer considerable potential in monitoring the trajectory of post-fire vegetation recovery dynamics beyond current field surveys about structural attributes, which generally lack a temporal perspective across large burned areas. We used a time series of the normalized difference vegetation index (NDVI) and normalized difference shortwave infrared reflectance index (NDSWIR) derived from Landsat images to investigate post-fire dynamics in a Chinese boreal larch forest. An adjacent, unburned patch of a similar forest type and environmental conditions was selected as a control to separate interannual fluctuation in NDVI and NDSWIR caused by climate from changes due to wildfire. Temporal anomalies in NDVI and NDSWIR showed that more than 10 years were needed for ecosystems to recover to a pre-fire state. The boosted regression tree analysis showed that fire severity exerted a persistent, dominant influence on vegetation recovery during the early post-fire successional stage and explained more than 60% of variation in vegetation recovery, whereas distance to the nearest unburned area and environmental conditions exhibited a relatively small influence. This result indicated that the legacy effects of fire disturbance, which control seed availability for tree recruitment, would persist for decades. The influence of environmental filtering could increase with succession and could mitigate the initial heterogeneity in recovery caused by wildfire.
Keywordfire disturbance climate change environmental filtering seed availability forest recovery boosted regression tree analysis
Funding OrganizationNational Key Research and Development Program of China ; CAS Pioneer Hundred Talents Program ; National Natural Science Foundation of China
DOI10.3389/fpls.2018.01318
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFA0604403] ; CAS Pioneer Hundred Talents Program ; National Natural Science Foundation of China[31470517] ; National Natural Science Foundation of China[31500387]
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000444245400001
PublisherFRONTIERS MEDIA SA
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129361
Collection中国科学院金属研究所
Corresponding AuthorLiu, Zhihua; Yang, Jian
Affiliation1.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang, Liaoning, Peoples R China
2.Guangxi Teachers Educ Univ, Minist Educ, Key Lab Environm Change & Resources Use Beibu Gul, Nanning, Peoples R China
3.Guangxi Teachers Educ Univ, Guangxi Key Lab Earth Surface Proc & Intelligent, Nanning, Peoples R China
4.Univ Kentucky, Dept Forestry & Nat Resources, Thomas Poe Cooper Bldg, Lexington, KY 40506 USA
Recommended Citation
GB/T 7714
Cai, Wen H.,Liu, Zhihua,Yang, Yuan Z.,et al. Does Environment Filtering or Seed Limitation Determine Post-fire Forest Recovery Patterns in Boreal Larch Forests?[J]. FRONTIERS IN PLANT SCIENCE,2018,9:12.
APA Cai, Wen H.,Liu, Zhihua,Yang, Yuan Z.,&Yang, Jian.(2018).Does Environment Filtering or Seed Limitation Determine Post-fire Forest Recovery Patterns in Boreal Larch Forests?.FRONTIERS IN PLANT SCIENCE,9,12.
MLA Cai, Wen H.,et al."Does Environment Filtering or Seed Limitation Determine Post-fire Forest Recovery Patterns in Boreal Larch Forests?".FRONTIERS IN PLANT SCIENCE 9(2018):12.
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