Advanced   Register
XTBG OpenIR  > 古生态研究组  > 期刊论文

title: Fire dynamics under monsoonal climate in Yunnan, SW China: past, present and future
author: Li, Shufeng;  Hughes, Alice C.;  Su, Tao;  ...;  Zhou, Zhekun
Issued Date: 2017
Abstract: Climate change is likely to alter wildfire regimes, but the significance of climate-driven factors in regional fire regimes over extended temporal scales is poorly understood. Comparison of the reconstructed fire dynamics from charcoals in sediments with modern active fires may provide clues about the drivers of wildfire activities, and help us validate models of fire activity for both the past and the future. Microscopic charcoals from Miocene sediments in Wenshan Basin (Yunnan, southwestern China), were used to reconstruct fire dynamics in deep time. Palaeoclimatic data were obtained from the previous quantitative reconstruction using pollen samples from a sedimentary sequence. The relationship between palaeoclimatic parameters and the ratio of charcoals during the Miocene was explored, and compared with maximum entropy (Maxent) model results throughout different time periods. Our results indicate that the temperature in the dry season was the main factor controlling the frequency of fire in Wenshan during the Miocene. Maxent modeling results based on the modern active fire dataset of Yunnan Province from NASA Earth observations are consistent with the results from fossil sediment analysis, that dry season temperature is the main driver of fire activity. Our findings suggest a significant fire-temperature relationship under the monsoonal climate since the Neogene. Furthermore, models suggest that the last-glacial maximum (LGM) had lower levels of fire activity than present, which increased during the Holocene prior to reaching present levels. Models also predict increases in fire activity across most of Yunnan in the future.
Appears in Collections:古生态研究组_期刊论文

Files in This Item:

File SizeFormat
Fire dynamics under monsoonal climate in Yunnan, SW China_past, present and future.pdf2426KbAdobe PDFView  Download

全文许可: Creative Commons 署名-非商业性使用-相同方式共享 3.0

Recommended Citation:
Li, Shufeng,Hughes, Alice C.,Su, Tao,et al. Fire Dynamics Under Monsoonal Climate In Yunnan, Sw China: Past, Present And Future[J]. Palaeogeography Palaeoclimatology Palaeoecology,2017,465(A):168-176.

SCI Citaion Data:
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Li, Shufeng]'s Articles
 [Hughes, Alice C.]'s Articles
 [Su, Tao]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Li, Shufeng]‘s Articles
 [Hughes, Alice C.]‘s Articles
 [Su, Tao]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to  Add to Digg  Add to Reddit 
所有评论 (0)
内 容:
Email:  *
验证码:   刷新
标 题:
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.



Valid XHTML 1.0!
Powered by CSpace