Growth responses of subalpine fir (Abies fargesii) to climate variability in the Qinling Mountain, China

2007 ◽  
Vol 240 (1-3) ◽  
pp. 143-150 ◽  
Author(s):  
Haishan Dang ◽  
Mingxi Jiang ◽  
Quanfa Zhang ◽  
Yanjun Zhang
Keyword(s):  
Climate Variability ◽  
Growth Responses ◽  
Subalpine Fir ◽  
Qinling Mountain ◽  
Abies Fargesii

Tree-line dynamics in relation to climate variability in the Shennongjia Mountains, central China

2009 ◽  
Vol 39 (10) ◽  
pp. 1848-1858 ◽  
Author(s):  
Haishan Dang ◽  
Kerong Zhang ◽  
Yanjun Zhang ◽  
Shuduan Tan ◽  
Mingxi Jiang ◽  
...  
Keyword(s):  
Climate Variability ◽  
Radial Growth ◽  
Function Analysis ◽  
Tree Density ◽  
Central China ◽  
Tree Line ◽  
Subalpine Fir ◽  
Southern Aspect ◽  
Spring Temperatures ◽  
Abies Fargesii

Subalpine tree lines are particularly sensitive to climate variability. In this study, tree-ring chronologies and age structure of the subalpine fir Abies fargesii Franch. are developed to examine subalpine tree-line dynamics in relation to climate variability on the northern and southern aspects of the Shennongjia Mountains in central China. Response function analysis shows that radial growth is significantly positively correlated with temperatures during the previous November and in February and March of the current year on the northern aspect and with temperatures during the previous October and in March, April, and June of the current year on the southern aspect. Recruitment of A. fargesii is positively influenced by temperature in March and April on the northern aspect and in February, March, and May on the southern aspect. Precipitation shows no significant correlation with radial growth or recruitment of A. fargesii on either aspect. Thus, spring temperatures are the major factor limiting both radial growth and seedling establishment of this subalpine fir species. Radial growth and recruitment of A. fargesii show similar responses to climate variability and provide critical information for assessing the impacts of climate warming on tree-line dynamics, such as an increase in tree density and an upward shift of the altitudinal tree line in this mountainous region of central China.

Radial growth responses of post oak (Quercus stellata) to climate variability and management in southeastern Oklahoma, USA

2021 ◽  
Author(s):  
Arjun Adhikari ◽  
Ronald E. Masters ◽  
Henry D. Adams ◽  
Rodney E. Will
Keyword(s):  
Climate Variability ◽  
Prescribed Fire ◽  
Radial Growth ◽  
Early Summer ◽  
Late Spring ◽  
Daily Temperature ◽  
Daily Minimum Temperature ◽  
Growth Responses ◽  
Post Oak ◽  
Quercus Stellata

We investigated radial growth of post oak (Quercus stellata) growing in a range of stand structures (forest to savanna) created in 1984 by different harvesting and thinning treatments followed by different prescribed fire intervals. We related ring width index (RWI) to monthly and seasonal climate variables and time since fire to assess impacts of climate variability and interactions with management on radial growth. RWI of all treatments was positively correlated to minimum daily temperature the previous September and precipitation late spring/early summer the current-year, and negatively correlated to maximum daily temperatures and drought index late spring/early summer. June weather was most strongly correlated in four of five treatments. While stand structure affected absolute diameter growth, RWI of savanna and forest stands responded similarly to climate variability, and low intensity prescribed fire did not influence RWI. On average, 100 mm reduction in June precipitation decreased RWI by 8%, 1oC increase in previous-year September daily minimum temperature increased RWI by 3.5%, and 1oC increase in June maximum daily temperature decreased RWI by 3.7%. Therefore, negative effects of drought and warmer spring/summer temperatures may be reduced by longer growing seasons under warmer climate scenarios. However, management did not appear to influence RWI.

Pestalotiopsis abietis sp. nov. from Abies fargesii in China

Phytotaxa ◽  
2021 ◽  
Vol 509 (1) ◽  
Author(s):  
MO GU ◽  
DONG-WEI HU ◽  
BING HAN ◽  
NING JIANG ◽  
CHENG-MING TianTIAN
Keyword(s):  
Plant Diseases ◽  
Qinling Mountain ◽  
Plant Hosts ◽  
Common Genus ◽  
Abies Fargesii

Pestalotiopsis is a common genus worldwide and causes diseases on many plant hosts. During our investigation on plant diseases in Qinling Mountain in China, Pestalotiopsis species on needles of Abies fargesii was discovered. Based on the phylogeny of combined ITS, TEF and TUB genes, three Pestalotiopsis isolates from present study cluster into a distinct clade close to P. parva in the genus. However, conidia of Pestalotiopsis abietis are obviously larger than those from P. parva. Hence, Pestalotiopsis abietis sp. nov. is introduced herein.

Dendroecological study of a subalpine fir (Abies fargesii) forest in the Qinling Mountains, China

Plant Ecology ◽  
2008 ◽  
Vol 201 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Haishan Dang ◽  
Mingxi Jiang ◽  
Yanjun Zhang ◽  
Gaodi Dang ◽  
Quanfa Zhang
Keyword(s):  
Qinling Mountains ◽  
Subalpine Fir ◽  
Abies Fargesii

scholarly journals Subalpine Fir (Abies laciocarpa) and Norway Spruce (Picea abies) Seedlings Show Different Growth Responses to Blue Light

Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 712
Author(s):  
Hazel Navidad ◽  
Inger Sundheim Fløistad ◽  
Jorunn E. Olsen ◽  
Sissel Torre
Keyword(s):  
Norway Spruce ◽  
Blue Light ◽  
Growth Parameters ◽  
Growth Responses ◽  
Tree Seedling ◽  
Poor Growth ◽  
Conifer Seedlings ◽  
Subalpine Fir ◽  
Northern Areas ◽  
Terminal Bud

Blue light (BL) affects different growth parameters, but information about the physiological effects of BL on conifer seedlings is limited. In northern areas, conifer seedlings are commonly produced in heated nursery greenhouses. Compared with Norway spruce, subalpine fir seedlings commonly show poor growth in nurseries due to early growth cessation. This study aimed to examine the effect of the BL proportion on the growth and development of such conifer seedlings in growth chambers, using similar photosynthetic active radiation, with 5% or 30% BL (400–500 nm) from high pressure sodium (HPS) lamps (300 μmol m−2 s−1) or a combination of HPS (225 μmol m−2 s−1) and BL-emitting diodes (75 μmol m−2 s−1), respectively. Additional BL increased transpiration and improved the growth of the Norway spruce seedlings, which developed thicker stems, more branches, and a higher dry matter (DM) of roots and needles, with an increased DM percentage in the roots compared with the shoots. In contrast, under additional BL, subalpine fir showed reduced transpiration and an increased terminal bud formation and lower DM in the stems and needles but no change in the DM distribution. Since these conifers respond differently to BL, the proportion of BL during the day should be considered when designing light spectra for tree seedling production.

Variability and rapid response of subalpine fir (Abies fargesii) to climate warming at upper altitudinal limits in north-central China

Trees ◽  
2015 ◽  
Vol 29 (3) ◽  
pp. 785-795 ◽  
Author(s):  
Haishan Dang ◽  
Yulong Zhang ◽  
Yanjun Zhang ◽  
Kerong Zhang ◽  
Quanfa Zhang
Keyword(s):  
Climate Warming ◽  
Rapid Response ◽  
Central China ◽  
North Central ◽  
Subalpine Fir ◽  
Abies Fargesii

scholarly journals Size‐, species‐, and site‐specific tree growth responses to climate variability in old‐growth subalpine forests

Ecosphere ◽  
2021 ◽  
Vol 12 (5) ◽  
Author(s):  
Elizabeth M. Campbell ◽  
Steen Magnussen ◽  
Joseph A. Antos ◽  
Roberta Parish
Keyword(s):  
Climate Variability ◽  
Tree Growth ◽  
Growth Responses ◽  
Old Growth ◽  
Subalpine Forests ◽  
Site Specific

Age structure and regeneration of subalpine fir (Abies fargesii) forests across an altitudinal range in the Qinling Mountains, China

2010 ◽  
Vol 259 (3) ◽  
pp. 547-554 ◽  
Author(s):  
Haishan Dang ◽  
Yanjun Zhang ◽  
Kerong Zhang ◽  
Mingxi Jiang ◽  
Quanfa Zhang
Keyword(s):  
Age Structure ◽  
Qinling Mountains ◽  
Subalpine Fir ◽  
Altitudinal Range ◽  
Abies Fargesii
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