נגישות
menu      
חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Resource redistribution effects on annual plant communities in a runoff harvesting system in dryland
Year:
2019
Source of publication :
Journal of Arid Environments
Authors :
פז-כגן, טרין
;
.
צעדי, אלי
;
.
Volume :
171
Co-Authors:

DeMalach, N., Department of Biology, Stanford University, Stanford, CA, United States;  Shachak, M., Blaustein Institutes of Desert Research, Ben-Gurion University of the Negev, Sede-Boker Campus, Israel

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

We aimed to study the effect of resource redistribution on annual plant species diversity in Runoff-Harvesting Systems, termed limans, along the runoff pathway in a watershed. We tested the effect of resource redistribution (water and nutrients) relative role of biomass, grass and forb abundance as mediators of species diversity. Our research was conducted in five small watersheds located in the central Negev Highlands, Israel. We quantified nutrient addition including soil nitrogen, phosphorus, potassium, total water content, and soil organic matter, in the liman, compared with two microsites (upstream, and downstream) along watersheds. We quantified biomass, grass and forb abundance and species richness in two successive years. We used structural equation modeling to study the effect of grass and forb abundance and biomass on the species richness of herbaceous plant communities. All tested soil properties significantly improved in the liman compared with the two microsites. Annual biomass increased significantly in the liman in compared with the downstream microsite. Our results also indicate a reduction in forb abundance in the liman and the downstream, and increment in the grass abundance in the liman microsite, leading to a decline in plant species richness. We conclude that diversity responses to biomass production are both resource-specific and functional group-specific. © 2019

Note:
Related Files :
Biomass
Conductivity
Dryland watershed management
forbs
grass
nutrient enrichment
species richness
Water enrichment;
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/j.jaridenv.2019.05.012
Article number:
103984
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
41411
Last updated date:
02/03/2022 17:27
Creation date:
18/06/2019 12:45
Scientific Publication
Resource redistribution effects on annual plant communities in a runoff harvesting system in dryland
171

DeMalach, N., Department of Biology, Stanford University, Stanford, CA, United States;  Shachak, M., Blaustein Institutes of Desert Research, Ben-Gurion University of the Negev, Sede-Boker Campus, Israel

Resource redistribution effects on annual plant communities in a runoff harvesting system in dryland

We aimed to study the effect of resource redistribution on annual plant species diversity in Runoff-Harvesting Systems, termed limans, along the runoff pathway in a watershed. We tested the effect of resource redistribution (water and nutrients) relative role of biomass, grass and forb abundance as mediators of species diversity. Our research was conducted in five small watersheds located in the central Negev Highlands, Israel. We quantified nutrient addition including soil nitrogen, phosphorus, potassium, total water content, and soil organic matter, in the liman, compared with two microsites (upstream, and downstream) along watersheds. We quantified biomass, grass and forb abundance and species richness in two successive years. We used structural equation modeling to study the effect of grass and forb abundance and biomass on the species richness of herbaceous plant communities. All tested soil properties significantly improved in the liman compared with the two microsites. Annual biomass increased significantly in the liman in compared with the downstream microsite. Our results also indicate a reduction in forb abundance in the liman and the downstream, and increment in the grass abundance in the liman microsite, leading to a decline in plant species richness. We conclude that diversity responses to biomass production are both resource-specific and functional group-specific. © 2019

Scientific Publication
You may also be interested in