Your browser does not allow JavaScript!
JavaScript is necessary for the proper functioning of this website. Please enable JavaScript or use a modern browser.
Open Science Slovenia
Open Science
DiKUL
slv
|
eng
Search
Browse
New in RUL
About RUL
In numbers
Help
Sign in
Soil respiration of karst grasslands subjected to woody-plant encroachment
ID
Eler, Klemen
(
Author
),
ID
Plestenjak, Gregor
(
Author
),
ID
Ferlan, Mitja
(
Author
),
ID
Čater, Matjaž
(
Author
),
ID
Simončič, Primož
(
Author
),
ID
Vodnik, Dominik
(
Author
)
URL - Presentation file, Visit
http://dx.doi.org/10.1111/ejss.12020
Image galllery
Abstract
The transition of grasslands to forests influences many ecosystem processes, including water and temperature regimes and the cycling of nutrients. Different components of the carbon biogeochemical cycle respond strongly to woody plant encroachment; as a consequence, the carbon balance of the invaded grasslands can change markedly. In our research, we studied the response of soil respiration (RS) to natural succession of calcareous grassland. We established two research sites, called grassland and invaded site, at each of which eddy flux measurement were also performed. Within these sites, triplicate plots were fenced for soil flux measurements. At the invaded site, measurements were performed for forest patches and grassy spaces separately. Soil respiration was strongly dependent on temperature and reached 8–12 µmol CO2 m−2 s−1 in mid-summer; it was greater at the grassland than at the invaded site. RS dependence on temperature and soil water content was similar between the different vegetation covers (grassland, gaps and forest patches). At a reference temperature of 10°C, the average RS was 2.71 µmol CO2 m−2 s−1. The annual sums of RS were also similar between years and sites: 1345 ± 47 (2009) and 1150 ± 37 g C m−2 year−1 (2010) for grassland and 1324 ± 26 (2009) and 1268 ± 26 g C m−2 year−1 (2010) for the invaded site, which is at the upper range of the values reported in the literature. Cumulative RS peaked in July, with about 200 g C m−2. Large mid-summer RS rates rely on strong biological activity supported by high, but non-extreme soil temperatures and by regular summer precipitation. A coupling of photosynthesis and RS was revealed by a 24-hour measurement, which showed asymmetrical clockwise hysteresis patterns.
Language:
English
Keywords:
kraški travniki
,
kraška travišča
,
zaraščanje
,
kroženje ogljika
,
temperatura
,
raspiracija tal
,
dihanje tal
,
pedologija
,
vlažnost tal
Work type:
Scientific work
Typology:
1.01 - Original Scientific Article
Organization:
BF - Biotechnical Faculty
Year:
2013
Number of pages:
Str. 210-218
Numbering:
Vol. 64, Issue 2
PID:
20.500.12556/RUL-69058
UDC:
630*1:581.1
ISSN on article:
1351-0754
COBISS.SI-ID:
7550841
Publication date in RUL:
10.07.2015
Views:
1998
Downloads:
362
Metadata:
Cite this work
Plain text
BibTeX
EndNote XML
EndNote/Refer
RIS
ABNT
ACM Ref
AMA
APA
Chicago 17th Author-Date
Harvard
IEEE
ISO 690
MLA
Vancouver
:
Copy citation
Share:
Record is a part of a journal
Title:
European journal of soil science
Shortened title:
Eur. j. soil sci.
Publisher:
Wiley
ISSN:
1351-0754
COBISS.SI-ID:
52063488
Similar documents
Similar works from RUL:
Similar works from other Slovenian collections:
Back