2005
DOI: 10.1657/1523-0430(2005)037[0435:mapcon]2.0.co;2
|View full text |Cite
|
Sign up to set email alerts
|

Microtopography and Plant-Cover Controls on Nitrogen Dynamics in Hummock Tundra Ecosystems in Siberia

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

3
43
0

Year Published

2011
2011
2021
2021

Publication Types

Select...
7
1

Relationship

0
8

Authors

Journals

citations
Cited by 37 publications
(46 citation statements)
references
References 63 publications
3
43
0
Order By: Relevance
“…Likewise, frost heaving is an unlikely mechanism, as little topographic variation was evident in our mesocosms after the first winter. These processes could, however, be important in other systems where microtopography is plant derived (Fogel et al 2004, Biasi et al 2005, Bouma et al 2009). …”
Section: Discussionmentioning
confidence: 99%
“…Likewise, frost heaving is an unlikely mechanism, as little topographic variation was evident in our mesocosms after the first winter. These processes could, however, be important in other systems where microtopography is plant derived (Fogel et al 2004, Biasi et al 2005, Bouma et al 2009). …”
Section: Discussionmentioning
confidence: 99%
“…Although the flow rate of mineralized N is smaller than the standing N stock in Arctic ecosystems (e.g., corresponding to only 0.2 % of the standing N stock in the case of Alaska; Shaver et al 1992), this flow N is precious because it is available to microbes and plants. Biasi et al (2005) evaluated gross N mineralization rates at ambient temperatures (1.0-6.2°C) in mineral soils of hummock tundra on the Taymyr Peninsula in central Siberia. Hummock tundra is a kind of patterned ground and consists of hummocks and interhummock areas.…”
Section: Introductionmentioning
confidence: 99%
“…Many studies have suggested that temperature (Oberbauer et al, 1991;Hobbie, 1996;Hartley et al, 1999;) and soil moisture (Johnson et al, 1996;Mueller et al, 1999) are major determinants of nutrient cycling rates in arctic soils, however there is increasing evidence that topographic patterns also play a role in controlling nutrient turnover (Walker et al, 2004;Mueller et al, 1999;Biasi et al, 2005). Topography is the primary determinant of soil moisture patterns across tundra landscapes, and therefore plays a major role in determining the distribution of vegetation types (Walker, 2000) and their cyanobacterial associations.…”
Section: Topography and Microtopographymentioning
confidence: 99%
“…In hummock-hollow tundra ecosystems mosses tend to dominate the hollows, which are expected to exhibit low growth rates, slow decomposition rates, relatively high C/N ratios and long nutrient turnover times (Hobbie, 1995;Biasi et al, 2005). In contrast hummocks can be dominated by graminoids and are expected to have higher growth rates, lower C/N ratios and more rapid nutrient turnover (Chapin et al, 1995;Hobbie, 1995;Biasi et al, 2005).…”
Section: Topography and Microtopographymentioning
confidence: 99%
See 1 more Smart Citation