Journal of Range and Watershed Managment

Predicting Net Primary Production of different Biomes of Jiroft Plain in the Face of Climate Change

Document Type : Research Paper

Authors

saeed barkhori 1
elham rafiei sardooi 1
mohammadreza ramezani 2
ali azareh 3
maryam nasabpoor 4

1 university of jiroft

2 Ph.D Candidate of Environmental Engineering, Australian Rivers Institute and School of Engineering Built Environment, Griffith University

3 Assistant Professor, Department of Geography, University of Jiroft

4 M.Sc. of Irrigation Engineering, Islamic Azad University of Kerman.

https://doi.org/10.22059/jrwm.2020.304190.1512
Abstract
One of the most important and main components of ecosystems is net primary production, which is an important index for assessing the ecosystems performance in the face of environmental changes. To this end, with regards to the importance of the subject, in this study, to quantify the climate change impacts on ecosystems, NPP values in Jiroft plain was simulated in two periods (2001- 2015and 2016-2030) using the BIOME-BGC model. To assess change in climatic parameters in future, LARS-WG 6 downscaling model was used. After ensuring the capability of the LARS-WG model to create climatic data, climatic variables were simulated in 2016-2030 under the RCP 4.5 scenario. NPP values in 2001-2015 were simulated using the BIOME-BGC model and validated with NPP data derived from Modis images (MOD17A3) that the results showed high accuracy of the model to simulate NPP. After ensuring the model accuracy, NPP was simulated under precipitation and temperature data in future (2016-2030). The results indicate an increase in precipitation, minimum and maximum temperature in the future period (2016-2030) compared with the baseline period (2001-2015). Also, according to the results, NPP value in future has increased in all biomes that this increase is due to increase in precipitation. There is the highest NPP value in the northern and western parts of the region that is related to biome 4 (with agricultural vegetation), biome 5 and 2 (with rangeland vegetation), respectively, and the lowest NPP value is related to the southern parts of the study area.

Keywords

MODIS
Ecosystem
Temperature
Precipitation
LARS-WG
Journal of Range and Watershed Managment
Volume 73, Issue 3
Autumn 2020
Pages 453-471

  • Receive Date 10 June 2020
  • Revise Date 14 September 2020
  • Accept Date 14 September 2020
  • Publish Date 21 November 2020

Home

Guide for Authors

Submit Manuscript

Contact Us