Dataset for Change in Carbon Storage for Cold Desert Ecosystems Controlled by Precipitation Seasonality and Invasive Vegetation

2018 ◽  
Author(s):  
David P. Huber ◽  
Kathleen A. Lohse ◽  
Amy Commendador ◽  
Stephen Joy ◽  
Bruce Finney ◽  
...  
Keyword(s):  
Carbon Storage ◽  
Desert Ecosystems ◽  
Cold Desert ◽  
Precipitation Seasonality

Life in Extreme Habitats: Diversity of Endolithic Microorganisms from Cold Desert Ecosystems of Eastern Pamir

2017 ◽  
Vol 65 (4) ◽  
pp. 303-319 ◽  
Author(s):  
Nataliia Khomutovska ◽  
Maja Jerzak ◽  
Iwona Kostrzewska-Szlakowska ◽  
Jan Kwiatowski ◽  
Małgorzata Suska-Malawska ◽  
...  
Keyword(s):  
Desert Ecosystems ◽  
Cold Desert ◽  
Extreme Habitats

scholarly journals Vegetation and precipitation shifts interact to alter organic and inorganic carbon storage in cold desert soils

Ecosphere ◽  
2019 ◽  
Vol 10 (3) ◽  
pp. e02655 ◽  
Author(s):  
David P. Huber ◽  
Kathleen A. Lohse ◽  
Amy Commendador ◽  
Stephen Joy ◽  
Ken Aho ◽  
...  
Keyword(s):  
Carbon Storage ◽  
Inorganic Carbon ◽  
Cold Desert ◽  
Desert Soils ◽  
Organic And Inorganic Carbon

Effects of Changing Climate on the Hydrological Cycle in Cold Desert Ecosystems of the Great Basin and Columbia Plateau

2019 ◽  
Vol 72 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Keirith A. Snyder ◽  
Louisa Evers ◽  
Jeanne C. Chambers ◽  
Jason Dunham ◽  
John B. Bradford ◽  
...  
Keyword(s):  
Great Basin ◽  
Hydrological Cycle ◽  
Desert Ecosystems ◽  
Cold Desert ◽  
Columbia Plateau ◽  
Changing Climate

A Shift in Seasonal Rainfall Reduces Soil Organic Carbon Storage in a Cold Desert

Ecosystems ◽  
2010 ◽  
Vol 13 (5) ◽  
pp. 673-682 ◽  
Author(s):  
Zachary T. Aanderud ◽  
James H. Richards ◽  
Tony Svejcar ◽  
Jeremy J. James
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Storage ◽  
Seasonal Rainfall ◽  
Cold Desert ◽  
Soil Organic Carbon Storage ◽  
Organic Carbon Storage

scholarly journals Gullies and Moraines Are Islands of Biodiversity in an Arid, Mountain Landscape, Asgard Range, Antarctica

2021 ◽  
Vol 12 ◽  
Author(s):  
Adam J. Solon ◽  
Claire Mastrangelo ◽  
Lara Vimercati ◽  
Pacifica Sommers ◽  
John L. Darcy ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Amplicon Sequencing ◽  
Phototrophic Bacteria ◽  
Rrna Gene ◽  
Dry Valleys ◽  
Habitat Types ◽  
Desert Ecosystems ◽  
High Sequence Identity ◽  
Cold Desert ◽  
Soil Crusts

Cold, dry, and nutrient-poor, the McMurdo Dry Valleys of Antarctica are among the most extreme terrestrial environments on Earth. Numerous studies have described microbial communities of low elevation soils and streams below glaciers, while less is known about microbial communities in higher elevation soils above glaciers. We characterized microbial life in four landscape features (habitats) of a mountain in Taylor Valley. These habitats varied significantly in soil moisture and include moist soils of a (1) lateral glacial moraine, (2) gully that terminates at the moraine, and very dry soils on (3) a southeastern slope and (4) dry sites near the gully. Using rRNA gene PCR amplicon sequencing of Bacteria and Archaea (16S SSU) and eukaryotes (18S SSU), we found that all habitat types harbored significantly different bacterial and eukaryotic communities and that these differences were most apparent when comparing habitats that had macroscopically visible soil crusts (gully and moraine) to habitats with no visible crusts (near gully and slope). These differences were driven by a relative predominance of Actinobacteria and a Colpodella sp. in non-crust habitats, and by phototrophic bacteria and eukaryotes (e.g., a moss) and predators (e.g., tardigrades) in habitats with biological soil crusts (gully and moraine). The gully and moraine also had significantly higher 16S and 18S ESV richness than the other two habitat types. We further found that many of the phototrophic bacteria and eukaryotes of the gully and moraine share high sequence identity with phototrophs from moist and wet areas elsewhere in the Dry Valleys and other cold desert ecosystems. These include a Moss (Bryum sp.), several algae (e.g., a Chlorococcum sp.) and cyanobacteria (e.g., Nostoc and Phormidium spp.). Overall, the results reported here broaden the diversity of habitat types that have been studied in the Dry Valleys of Antarctica and suggest future avenues of research to more definitively understand the biogeography and factors controlling microbial diversity in this unique ecosystem.

scholarly journals CARBON STOCK ESTIMATION USING REMOTE SENSING DATA AND FIELD MEASUREMENT IN <i>HALOXYLON AMMODENDRON</i> DOMINANT WINTER COLD DESERT REGION OF MONGOLIA

2020 ◽  
Vol V-3-2020 ◽  
pp. 9-17
Author(s):  
B. Batsaikhan ◽  
O. Lkhamjav ◽  
G. Batsaikhan ◽  
N. Batsaikhan ◽  
B. Norovsuren
Keyword(s):  
Remote Sensing ◽  
Vegetation Coverage ◽  
Coefficient Of Determination ◽  
Gobi Desert ◽  
Haloxylon Ammodendron ◽  
Desert Ecosystems ◽  
Coverage Area ◽  
Cold Desert ◽  
Canopy Area ◽  
Sentinel 2

Abstract. The UN-REDD Mongolia National Programme has studied about forest carbon emissions, and enhance and sustainably manage its carbon stocks, through the implementation of REDD+ activities since 2011. However, the current assessments seem to remain uncertain, the study for estimating carbon storage based on field survey are still rare. Because the Haloxylon ammodendron, where Gobi desert ecosystems are covering large areas, it is necessary to develop a modelling approach applying remote sensing. The study area is locating in Gobi-Altai province, Trans-Altai area as the south-western part of Mongolia. A total of 32 plots were established on eighth different land cover types to represent the range of variability. The study was used high spatial resolution imagery of Pleiades-1 and both of active and passive data from Sentinel-1 and Sentinel-2. The growing height in 32 plots is ranging from 20 to 460 cm with between 0.002 and 544.9 cm2 for basal area and between 526.5 and 166106.0 cm2 for canopy area, respectively. Shrub density is very high in plot 4 (n=135) and plot 5 (n=117) with low above-ground biomass 12 kg and 10.9 kg. The backscatter (dB) values of vegetated area and non-vegetated were comparable, −27.86 and −17.36 in VH polarisation and −22.72 and −10.61 in VV polarisation, respectively. Model-M1 was best demonstrated when a combination of vegetation coverage area was used as Pleiades-1 and Sentinel-2 derived vegetation cover data. For model-M9, the results were comparable to model-M1 but with lower the coefficient of determination. In this work, NDVI and MSAVI appear as a good indicator of biomass mainly because it does not saturate in sparse shrubs and is more sensitive to canopy parameters.

scholarly journals Altitudinal variations in soil carbon storage and distribution patterns in cold desert high altitude microclimate of India

2012 ◽  
Vol 7 (47) ◽  
pp. 6313-6319 ◽  
Author(s):  
Charan Guru ◽  
K Bharti Vijay ◽  
E Jadhav S ◽  
Kumar S ◽  
Angchok Dorjey ◽  
...  
Keyword(s):  
High Altitude ◽  
Soil Carbon ◽  
Carbon Storage ◽  
Distribution Patterns ◽  
Soil Carbon Storage ◽  
Cold Desert

Reconstructions of the past distribution of Testudo graeca mitochondrial lineages in the Middle East and Transcaucasia support multiple refugia since the Last Glacial Maximum

2021 ◽  
pp. 10-17
Author(s):  
Oguz Turkozan
Keyword(s):  
Middle East ◽  
Last Glacial Maximum ◽  
Glacial Maximum ◽  
Testudo Graeca ◽  
Last Glacial ◽  
The Past ◽  
Precipitation Seasonality ◽  
Multiple Refugia ◽  
The Last Glacial Maximum ◽  
The Last Glacial

A cycle of glacial and interglacial periods in the Quaternary caused species’ ranges to expand and contract in response to climatic and environmental changes. During interglacial periods, many species expanded their distribution ranges from refugia into higher elevations and latitudes. In the present work, we projected the responses of the five lineages of Testudo graeca in the Middle East and Transcaucasia as the climate shifted from the Last Glacial Maximum (LGM, Mid – Holocene), to the present. Under the past LGM and Mid-Holocene bioclimatic conditions, models predicted relatively more suitable habitats for some of the lineages. The most significant bioclimatic variables in predicting the present and past potential distribution of clades are the precipitation of the warmest quarter for T. g. armeniaca (95.8 %), precipitation seasonality for T. g. buxtoni (85.0 %), minimum temperature of the coldest month for T. g. ibera (75.4 %), precipitation of the coldest quarter for T. g. terrestris (34.1 %), and the mean temperature of the driest quarter for T. g. zarudyni (88.8 %). Since the LGM, we hypothesise that the ranges of lineages have either expanded (T. g. ibera), contracted (T. g. zarudnyi) or remained stable (T. g. terrestris), and for other two taxa (T. g. armeniaca and T. g. buxtoni) the pattern remains unclear. Our analysis predicts multiple refugia for Testudo during the LGM and supports previous hypotheses about high lineage richness in Anatolia resulting from secondary contact.

Site Quality, Disturbance, and Vegetation Effects on Carbon Storage and Accumulation in Old, Mixed-Species Stands in Central Maine, USA

2019 ◽  
Vol 39 (4) ◽  
pp. 429 ◽  
Author(s):  
Joshua J. Puhlick ◽  
Shawn Fraver ◽  
Ivan J. Fernandez ◽  
Aaron Teets ◽  
Aaron R. Weiskittel ◽  
...  
Keyword(s):  
Carbon Storage ◽  
Site Quality ◽  
Mixed Species ◽  
Vegetation Effects
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