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ORIGINAL RESEARCH
The Response of Ecosystem Carbon Storage
to Climate and Land Use Changes
in Xi’an City
1
College of Land Engineering, Chang’an University, Xi’an 710000, China
2
College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
Submission date: 2023-11-30
Final revision date: 2024-02-21
Acceptance date: 2024-04-18
Online publication date: 2024-09-20
Publication date: 2025-01-28
Corresponding author
Pol. J. Environ. Stud. 2025;34(3):3315-3331
KEYWORDS
TOPICS
ABSTRACT
Carbon storage is a crucial ecosystem service, with its variations significantly impacting global
changes. This study, based on corrected mean carbon density for various land use types nationwide,
employs the InVEST model to assess Xi’an’s ecosystem carbon storage changes from 2000 to 2020.
Identifying carbon sink and source areas quantifies the impacts of climate and land use changes.
Results reveal a trend of “initial decrease followed by an overall increase” in Xi’an’s carbon storage
from 2000 to 2020. During 2000-2010, the total carbon storage decreased from 95.12 Tg to 94.42 Tg,
with a notable proportion (5.77%) in low-carbon optimization and carbon emission control zones.
Land use changes, particularly continuous built-up land expansion, slightly exceeded climate change
in contributing to the decrease. From 2010 to 2020, the total carbon storage increased from 94.42 Tg
to 95.76 Tg, predominantly influenced by land use change (128.21%). However, low carbon zones
remained relatively high at 4.21%, primarily located in transitional zones between the Weihe River
plains and the Qinling Mountains, as well as the edges of valley water systems. These ecologically
crucial regions, while important, are more fragile and sensitive, underscoring the imperative
for intensified protection in the future.
CONFLICT OF INTEREST
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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