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פותח על ידי קלירמאש פתרונות בע"מ -
Understory structure and function following release from cattle grazing and overstory thinning in Mediterranean conifer plantations
Year:
2017
Source of publication :
Annals of Forest Science
Authors :
אוסם, יגיל
;
.
אשכנזי, מור
;
.
משה, יוסי
;
.
Volume :
74
Co-Authors:


Fogel, T., The Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot,
Brant, S., Central Forest Region, KKL, Yokneam, Israel

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:
Key message: Cattle grazing and overstory cover restrict understory growth and interact in shaping the understory community structure in Mediterranean conifer plantations. Context: Understanding how silvicultural manipulations drive understory structure and function in Mediterranean pine plantations is essential for their multifunctional management. Aims: This paper aims to study the interactive effects of cattle grazing and overstory thinning on understory structure and function. Methods: Ten plots (0.25 ha) were selected in East Mediterranean mature Pinus brutia plantation (rainfall = 600 mm year−1) representing thinned (≈100 trees ha−1, leaf area index (LAI) ≈ 1.6) and non-thinned (≈230 trees ha−1, LAI ≈ 3.5) areas. Two subplots (100 m2) within each plot were fenced in 2000 and 2006 while a third one remained grazed. Understory growth and species composition were measured in 2010. Results: Thinning and grazing exclusion both positively influenced woody growth with their combined effect during 10 years leading to 20-fold increase in vegetation volume. An increase (15-fold) in herbaceous biomass was recorded 4 years after grazing exclusion but disappeared 10 years after exclusion due to increased woody cover. Species richness was not influenced by grazing but was positively affected by thinning. Understory composition was affected by grazing × thinning interaction with herbaceous ephemerals and short woody species being more frequent in grazed, thinned areas while larger woody species were more associated with ungrazed, non-thinned areas. Conclusion: Grazing impacts on forest understories depend on overstory cover. We propose variable grazing-thinning combinations to meet multiple management objectives. © 2017, INRA and Springer-Verlag France.
Note:
Related Files :
Bos
Coniferophyta
Exclosures
Herbaceous vegetation
Overstory cover
Pinus brutia
species richness
woody vegetation
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/s13595-017-0622-5
Article number:
22
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
29258
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:45
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Scientific Publication
Understory structure and function following release from cattle grazing and overstory thinning in Mediterranean conifer plantations
74


Fogel, T., The Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot,
Brant, S., Central Forest Region, KKL, Yokneam, Israel

Understory structure and function following release from cattle grazing and overstory thinning in Mediterranean conifer plantations
Key message: Cattle grazing and overstory cover restrict understory growth and interact in shaping the understory community structure in Mediterranean conifer plantations. Context: Understanding how silvicultural manipulations drive understory structure and function in Mediterranean pine plantations is essential for their multifunctional management. Aims: This paper aims to study the interactive effects of cattle grazing and overstory thinning on understory structure and function. Methods: Ten plots (0.25 ha) were selected in East Mediterranean mature Pinus brutia plantation (rainfall = 600 mm year−1) representing thinned (≈100 trees ha−1, leaf area index (LAI) ≈ 1.6) and non-thinned (≈230 trees ha−1, LAI ≈ 3.5) areas. Two subplots (100 m2) within each plot were fenced in 2000 and 2006 while a third one remained grazed. Understory growth and species composition were measured in 2010. Results: Thinning and grazing exclusion both positively influenced woody growth with their combined effect during 10 years leading to 20-fold increase in vegetation volume. An increase (15-fold) in herbaceous biomass was recorded 4 years after grazing exclusion but disappeared 10 years after exclusion due to increased woody cover. Species richness was not influenced by grazing but was positively affected by thinning. Understory composition was affected by grazing × thinning interaction with herbaceous ephemerals and short woody species being more frequent in grazed, thinned areas while larger woody species were more associated with ungrazed, non-thinned areas. Conclusion: Grazing impacts on forest understories depend on overstory cover. We propose variable grazing-thinning combinations to meet multiple management objectives. © 2017, INRA and Springer-Verlag France.
Scientific Publication
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