Natural and anthropogenic forcings lead to contrasting vegetation response in long-term vs. short-term timeframes
Kazemzadeh, Majid ; Noori, Zahra ; Alipour, Hasan ; Jamali, Sadegh LU
and Seyednasrollah, Bijan
(2021)
In Journal of Environmental Management
286.
- Abstract
- Understanding vegetation response to natural and anthropogenic forcings is vital for managing watersheds as natural ecosystems. We used a novel integrated framework to separate the impacts of natural factors (e.g. drought, precipitation and temperature) from those of anthropogenic factors (e.g. human activity) on vegetation cover change at the watershed scale. We also integrated several datasets including satellite remote sensing and in-situ measurements for a twenty-year time period (2000–2019). Our results show that despite no significant trend being observed in temperature and precipitation, vegetation indices expressed an increasing trend at both the control and treated watersheds. The vegetation cover was not significantly affected by... (More)
- Understanding vegetation response to natural and anthropogenic forcings is vital for managing watersheds as natural ecosystems. We used a novel integrated framework to separate the impacts of natural factors (e.g. drought, precipitation and temperature) from those of anthropogenic factors (e.g. human activity) on vegetation cover change at the watershed scale. We also integrated several datasets including satellite remote sensing and in-situ measurements for a twenty-year time period (2000–2019). Our results show that despite no significant trend being observed in temperature and precipitation, vegetation indices expressed an increasing trend at both the control and treated watersheds. The vegetation cover was not significantly affected by the natural factors whereas the watershed management practice (as a human activity) had significant impacts on vegetation change in the long-term. Further, the vegetation cover long-term response to watershed management practice was mainly linear. We also found that the vegetation indices values in the 2011–2019 period (as the treated period in treated watershed) were significantly higher than those in the 2000–2010 period. In the short-term, however, the drought condition and decreased precipitation (as natural factors) explained the majority of the change in vegetation cover. For example, the majority of the breakpoints occurred in 2008, and it was related to a widespread extreme drought in the area. The watershed management practice as a human activity along with extreme climatic events could explain a large part of the vegetation changes observed in the treated and control watersheds. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1a3d41fd-4fda-469d-994d-17b613b0f125
- author
- Kazemzadeh, Majid
; Noori, Zahra
; Alipour, Hasan
; Jamali, Sadegh
LU
and Seyednasrollah, Bijan
- organization
- publishing date
- 2021-05-15
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Environmental Management
- volume
- 286
- article number
- 112249
- pages
- 18 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85101870666
- pmid:33677345
- ISSN
- 0301-4797
- DOI
- 10.1016/j.jenvman.2021.112249
- language
- English
- LU publication?
- yes
- id
- 1a3d41fd-4fda-469d-994d-17b613b0f125
- date added to LUP
- 2021-04-01 14:13:21
- date last changed
- 2022-06-29 08:09:37
@article{1a3d41fd-4fda-469d-994d-17b613b0f125,
abstract = {{Understanding vegetation response to natural and anthropogenic forcings is vital for managing watersheds as natural ecosystems. We used a novel integrated framework to separate the impacts of natural factors (e.g. drought, precipitation and temperature) from those of anthropogenic factors (e.g. human activity) on vegetation cover change at the watershed scale. We also integrated several datasets including satellite remote sensing and in-situ measurements for a twenty-year time period (2000–2019). Our results show that despite no significant trend being observed in temperature and precipitation, vegetation indices expressed an increasing trend at both the control and treated watersheds. The vegetation cover was not significantly affected by the natural factors whereas the watershed management practice (as a human activity) had significant impacts on vegetation change in the long-term. Further, the vegetation cover long-term response to watershed management practice was mainly linear. We also found that the vegetation indices values in the 2011–2019 period (as the treated period in treated watershed) were significantly higher than those in the 2000–2010 period. In the short-term, however, the drought condition and decreased precipitation (as natural factors) explained the majority of the change in vegetation cover. For example, the majority of the breakpoints occurred in 2008, and it was related to a widespread extreme drought in the area. The watershed management practice as a human activity along with extreme climatic events could explain a large part of the vegetation changes observed in the treated and control watersheds.}},
author = {{Kazemzadeh, Majid and Noori, Zahra and Alipour, Hasan and Jamali, Sadegh and Seyednasrollah, Bijan}},
issn = {{0301-4797}},
language = {{eng}},
month = {{05}},
publisher = {{Elsevier}},
series = {{Journal of Environmental Management}},
title = {{Natural and anthropogenic forcings lead to contrasting vegetation response in long-term vs. short-term timeframes}},
url = {{http://dx.doi.org/10.1016/j.jenvman.2021.112249}},
doi = {{10.1016/j.jenvman.2021.112249}},
volume = {{286}},
year = {{2021}},
}