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Chapter Three Impacts of Global Climate Change

mulative temperature rise values of each region relative to the initial time point at different
time nodes. Finally, with the aid of GIS technology once again, these quantified cumulative
rise values are presented in the form of thematic maps. By drawing contour maps of cumula-
tive temperature rise magnitudes across different periods, the spatial distribution characteris-
tics of the long-term cumulative effects of climate change can be clearly demonstrated.
Through this expanded application combining spatial analysis, researchers have dis-
covered that certain regions exhibit significantly higher cumulative temperature increases
compared to surrounding areas due to unique geographical environments (such as leeward
slopes of mountains or basin topography) or strong anthropogenic influences like large-scale
urbanization and industrial emissions. These spatial disparity findings provide crucial scien-
tific basis for formulating targeted regional climate change mitigation strategies. For areas
with substantial cumulative temperature rises, priority should be given to implementing ener-
gy conservation and emission reduction initiatives, strengthening industrial pollution source
management, and promoting clean energy adoption. Concurrently, ecological conservation
efforts should be intensified through measures like afforestation and wetland protection to
enhance regional ecosystems’ climate regulation capacity. Even for regions with relatively
smaller cumulative temperature increases, complacency must be avoided. These areas should
proactively prepare for climate change by learning from other regions’ experiences, develop-
ing scientifically sound preventive measures to avoid repeating past mistakes.
Furthermore, by integrating spatial analysis methods, in-depth research can be con-
ducted on the differences in long-term cumulative effects of climate change across various
ecosystem types. The Earth’s surface hosts diverse ecosystems such as forest ecosystems,
grassland ecosystems, wetland ecosystems, and marine ecosystems, each exhibiting distinct
response mechanisms and cumulative effects to climate change. Through precise spatial de-
lineation of different ecosystems using GIS technology, combined with time series analysis
and cumulative sum models to quantitatively analyze climate parameter variations and bio-
diversity evolution within each ecosystem, this approach can reveal the spatial heterogeneity
of long-term cumulative climate change effects across different ecosystems. This provides
crucial guidance for formulating ecosystem protection and restoration strategies, as well as
maintaining global ecological balance. For instance, studies have shown that wetland eco-
systems exhibit heightened sensitivity to cumulative climate change effects. Under the dual
pressures of rising temperatures and altered precipitation patterns, issues like wetland area
shrinkage, water quality deterioration, and biodiversity loss have become increasingly prom-
inent. Based on these findings, relevant authorities can develop specialized protection plans
for wetland ecosystems, increase funding for wetland conservation, implement ecological
restoration projects, and enhance wetland ecosystems’ stability and resilience to disturbanc-
es, thereby mitigating the long-term cumulative negative impacts of climate change on wet-
land ecosystems.

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