scholarly journals Warming Increases the Carbon Sequestration Capacity of Picea schrenkiana in the Tianshan Mountains, China

Forests ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 1066
Author(s):  
Honghua Zhou ◽  
Yaning Chen ◽  
Chenggang Zhu ◽  
Yapeng Chen ◽  
Yuhai Yang ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Carbon Storage ◽  
Aboveground Biomass ◽  
Minimum Temperature ◽  
Ring Width ◽  
Tianshan Mountains ◽  
Tree Ring Width ◽  
Picea Schrenkiana ◽  
Carbon Cycles ◽  
Aboveground Carbon Storage

As an essential part of terrestrial ecosystems, convenient and accurate reconstruction of the past carbon sequestration capacity of forests is critical to assess future trends of aboveground carbon storage and ecosystem carbon cycles. In addition, the relationship between climate change and carbon sequestration of forests has been vigorously debated. In this study, dynamic change of carbon sequestration capacity in aboveground biomass of Picea schrenkiana (hereinafter abbreviated as P. schrenkiana) in the Tianshan Mountains, northwestern China, from 1850–2017, were reconstructed using dendrochronology. The main climate drivers that affected carbon sequestration capacity in aboveground biomass of P. schrenkiana were then investigated. The results showed that: (1) tree-ring width and diameter at breast height (DBH) of P. schrenkiana obtained from different altitudes and ages were an effective and convenient estimation index for reconstructing the carbon sequestration capacity of P. schrenkiana. The carbon storage of P. schrenkiana forest in 2016 in the Tianshan Mountains was 50.08 Tg C calculated using tree-ring width and DBH, which was very close to the value determined by direct field investigation data. (2) The annual carbon sequestration potential capacity of P. schrenkiana exhibited an increasing trend from 1850–2017. Temperature, especially minimum temperature, constituted the key climatic driver resulting in increased carbon sequestration capacity. The contribution rates of temperature and minimum temperature to the change of P. schrenkiana carbon sequestration capacity was 75% and 44%, respectively. (3) The significant increase of winter temperature and minimum temperature led to warming in the Tianshan Mountains, resulting in a significant increase in carbon sequestration capacity of P. schrenkiana. The results indicate that, with the continuous increase of winter temperature and minimum temperature, carbon sequestration of P. schrenkiana in the Tianshan Mountains is predicted to increase markedly in the future. The findings of this study provide a useful basis to evaluate future aboveground carbon storage and carbon cycles in mountain systems possessed similar characteristics of the Tianshan Mountains.

scholarly journals Tree-Ring Width and Carbon Isotope Chronologies Track Temperature, Humidity, and Baseflow in the Tianshan Mountains, Central Asia

Forests ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1308
Author(s):  
Yuting Fan ◽  
Huaming Shang ◽  
Ye Wu ◽  
Qian Li
Keyword(s):  
Stable Isotopes ◽  
Tree Ring ◽  
Ring Width ◽  
River Basins ◽  
Tianshan Mountains ◽  
Limiting Factor ◽  
Source Water ◽  
Tree Ring Width ◽  
The North ◽  
Temperature And Precipitation

Concerns have been raised about the negative impacts of global warming on the hydrological climate change and ecosystems of Asia. Research on the high-altitude mountainous regions of Asia with relatively short meteorological and hydrological records relies on paleoclimate proxy data with long time scales. The stable isotopes of tree-rings are insightful agents that provide information on pre-instrumental climatic and hydrological fluctuations, yet the variability of these data from different regions along the Tianshan Mountains has not been fully explored. Herein, we related climate data with tree-ring width (TRW) chronologies and δ13C (stable carbon isotope discrimination) series to discern if the Picea schrenkiana in the Ili and Manas River Basins are sensitive to climatic factors and baseflow (BF). The results show significant correlations between temperature and TRW chronologies, temperature and δ13C, relative humidity and TRW chronologies, and BF and δ13C. Temperature, particularly the mean late summer to early winter temperature, is a pronounced limiting factor for the tree-ring and the δ13C series in the Manas River Basin, located in the middle of the North Tianshan Mountains. Meanwhile, mean early spring to early autumn temperature is a limiting factor for that of the Ili River Basin, located on the southern slope of the North Tianshan Mountains. We conclude that different seasonal variations in temperature and precipitation of the two river basins exerted significant control on tree growth dynamics. Tree-ring width and tree-ring δ13C differ in their sensitivity to climate and hydrological parameters to which tree-ring δ13C is more sensitive. δ13C showed significant lag with precipitation, and the lag correlation showed that BF, temperature, and precipitation were the most affected factors that are often associated with source water environments. δ13C series correlated positively to winter precipitation, suggesting baseflow was controlling the length of the growing season. The tree-ring δ13C provided information that coincided with TRW chronologies, and supplied some indications that were different from TRW chronologies. The carbon stable isotopes of tree-rings have proven to be powerful evidence of climatic signals and source water variations.

Extreme climate historical variation based on tree-ring width record in the Tianshan Mountains of northwestern China

2020 ◽  
Vol 64 (12) ◽  
pp. 2127-2139
Author(s):  
Shengjie Wang ◽  
Liang Jiao ◽  
Yuan Jiang ◽  
Ke Chen ◽  
Xiaoping Liu ◽  
...  
Keyword(s):  
Tree Ring ◽  
Ring Width ◽  
Tianshan Mountains ◽  
Northwestern China ◽  
Tree Ring Width ◽  
Extreme Climate ◽  
Historical Variation

Tree-ring width based streamflow reconstruction for the Kaidu River originating from the central Tianshan Mountains since A.D. 1700

2020 ◽  
Vol 61 ◽  
pp. 125700 ◽  
Author(s):  
Tongwen Zhang ◽  
Yu Liu ◽  
Ruibo Zhang ◽  
Shulong Yu ◽  
Yuting Fan ◽  
...  
Keyword(s):  
Tree Ring ◽  
Ring Width ◽  
Tianshan Mountains ◽  
Tree Ring Width ◽  
Streamflow Reconstruction ◽  
Kaidu River

Spatial patterns of tree and shrub biomass in a deciduous forest using leaf-off and leaf-on lidar

2018 ◽  
Vol 48 (9) ◽  
pp. 1020-1033 ◽  
Author(s):  
Kristen M. Brubaker ◽  
Quincey K. Johnson ◽  
Margot W. Kaye
Keyword(s):  
Carbon Storage ◽  
Spatial Patterns ◽  
Aboveground Biomass ◽  
Deciduous Forest ◽  
Abiotic Factors ◽  
Slope Position ◽  
Fine Scale ◽  
Shrub Biomass ◽  
Topographic Positions ◽  
Aboveground Carbon Storage

Understanding patterns of aboveground carbon storage across forest types is increasingly important as managers adapt to threats of global change. We combined field measures of aboveground biomass with lidar to model fine-scale biomass in deciduous forests located in two watersheds; one watershed was underlain by sandstone and the other by shale. We measured tree and shrub biomass across three topographic positions for both watersheds and analyzed biomass using mixed models. The watershed underlain by shale had 60% more aboveground biomass than the sandstone watershed. Although spatial patterns of biomass were different across watersheds, both had higher (between about 40% and 55%) biomass values at the toe-slope position than at the ridge-top position. To model fine-scale spatial patterns of biomass, we tested the effectiveness of leaf-on and leaf-off lidar combined with topographic metrics to develop a spatially explicit random forest model of tree and shrub biomass across both watersheds. Leaf-on variables were more important for modeling shrub biomass, while leaf-off variables were more effective at modeling tree biomass. Our model of tree and shrub biomass reflects the distribution of biomass across both watersheds at a fine scale and highlights the potential of abiotic factors such as topography and bedrock to affect carbon storage.

Response of tree-ring width to rainfall gradient along the Tianshan Mountains of northwestern China

2007 ◽  
Vol 52 (21) ◽  
pp. 2954-2962 ◽  
Author(s):  
WeiGuo Sang ◽  
YunXia Wang ◽  
HongXin Su ◽  
ZhaoHua Lu
Keyword(s):  
Tree Ring ◽  
Ring Width ◽  
Tianshan Mountains ◽  
Northwestern China ◽  
Tree Ring Width ◽  
Rainfall Gradient

scholarly journals Urban warming reduces aboveground carbon storage

2016 ◽  
Vol 283 (1840) ◽  
pp. 20161574 ◽  
Author(s):  
Emily Meineke ◽  
Elsa Youngsteadt ◽  
Robert R. Dunn ◽  
Steven D. Frank
Keyword(s):  
Carbon Sequestration ◽  
Carbon Storage ◽  
Physiological Function ◽  
Insect Herbivory ◽  
Urban Trees ◽  
Mature Trees ◽  
Urban Warming ◽  
Urban Conditions ◽  
Aboveground Carbon Storage ◽  
Global Carbon

A substantial amount of global carbon is stored in mature trees. However, no experiments to date test how warming affects mature tree carbon storage. Using a unique, citywide, factorial experiment, we investigated how warming and insect herbivory affected physiological function and carbon sequestration (carbon stored per year) of mature trees. Urban warming increased herbivorous arthropod abundance on trees, but these herbivores had negligible effects on tree carbon sequestration. Instead, urban warming was associated with an estimated 12% loss of carbon sequestration, in part because photosynthesis was reduced at hotter sites. Ecosystem service assessments that do not consider urban conditions may overestimate urban tree carbon storage. Because urban and global warming are becoming more intense, our results suggest that urban trees will sequester even less carbon in the future.

Sign in / Sign up

Export Citation Format

Share Document