Does Environment Filtering or Seed Limitation Determine Post-fire Forest Recovery Patterns in Boreal Larch Forests?

doi:10.3389/fpls.2018.01318

	Does Environment Filtering or Seed Limitation Determine Post-fire Forest Recovery Patterns in Boreal Larch Forests?
	Cai, Wen H.2,3,4; Yang, Yuan Z.3,4; Liu, Zhihua 2; Yang, Jian 1
刊名	FRONTIERS IN PLANT SCIENCE
	2018-09-11
卷号	9
关键词	Fire Disturbance Climate Change Environmental Filtering Seed Availability Forest Recovery Boosted Regression Tree Analysis
ISSN号	1664-462X
DOI	10.3389/fpls.2018.01318
英文摘要	Wildfire 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.
WOS研究方向	Plant Sciences
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000444245400001
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/121193]
专题	中国科学院沈阳应用生态研究所
通讯作者	Liu, Zhihua; Yang, Jian
作者单位	1.Univ Kentucky, Dept Forestry & Nat Resources, Thomas Poe Cooper Bldg, Lexington, KY 40506 USA 2.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang, Liaoning, Peoples R China 3.Guangxi Teachers Educ Univ, Minist Educ, Key Lab Environm Change & Resources Use Beibu Gul, Nanning, Peoples R China 4.Guangxi Teachers Educ Univ, Guangxi Key Lab Earth Surface Proc & Intelligent, Nanning, Peoples R China
推荐引用方式 GB/T 7714	Cai, Wen H.,Yang, Yuan Z.,Liu, Zhihua,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.
APA	Cai, Wen H.,Yang, Yuan Z.,Liu, Zhihua,&Yang, Jian.(2018).Does Environment Filtering or Seed Limitation Determine Post-fire Forest Recovery Patterns in Boreal Larch Forests?.FRONTIERS IN PLANT SCIENCE,9.
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).