Two Kentucky State studies examine carbon storage, land-cover change, and long-term
recovery in post-mining landscapes shaped by generations of energy production
FRANKFORT, Ky. — New research from 鶹ֱ is putting a clearer
value on the environmental and economic benefits of watershed restoration in Eastern
Kentucky, where generations of energy production have shaped local communities, regional
economies, and the landscape itself.
Two studies led by Shreesha Pandeya, a Kentucky State research associate, examine
restoration outcomes in the Big Sandy River Basin. The first study, was published in Environmental Management. The second, was published in Environmental Challenges.
Together, the studies provide a data-driven look at how targeted restoration policies,
watershed management strategies, and land-use changes are influencing carbon storage,
vegetation recovery, and ecosystem services across post-mining landscapes.
The work was conducted through the University’s Integrative Human-Environment Dynamics
Lab (IHED) and Center for Geospatial Intelligence and Environmental Security (CGIES),
with Pandeya working in collaboration with Dr. Buddhi R. Gyawali and Dr. Suraj Upadhaya.
A key finding is the economic value associated with restored and functioning landscapes.
Pandeya’s research estimated that climate-regulating ecosystem services in the region
exceeded $6,000 per hectare, underscoring the practical value of sustained investment
in land and watershed restoration.
For years, state and federal agencies have directed restoration resources toward priority
watersheds identified as areas of environmental concern. Pandeya’s research examined
whether those targeted efforts are producing measurable outcomes.
Using data from 2001 to 2021, the study found that overall carbon storage increased modestly across the region. However,
priority watersheds showed substantially stronger gains, with carbon storage levels
nearly 6.5 times those of non-priority areas over the study period.
“Targeted restoration efforts are enhancing the landscape’s ability to absorb and
store carbon, a critical function in supporting long-term environmental resilience,”
Pandeya said.
The companion study in used satellite imagery and spatial analysis to examine how land cover has changed
over time. The study found that priority watersheds are experiencing more favorable
land-cover transitions, including reductions in barren land and increases in vegetation
such as forests and shrublands. In one priority watershed, barren land declined by
as much as 67%.
Non-priority watersheds showed more fragmented patterns, including greater development
pressure, declines in forest cover, and losses in water resources. The findings suggest
that watersheds receiving more targeted restoration attention may experience stronger
and more consistent recovery over time.
“These studies show that heavily altered landscapes can recover, and that targeted
restoration, especially through watershed prioritization, can make a measurable difference
for ecosystems and communities,” Pandeya said. “I hope this research supports better
watershed management and long-term sustainability in Eastern Kentucky.”
Dr. Upadhaya, co-author of both studies, said the findings offer useful direction
for restoration planning and policy.
“Targeted investments in priority watersheds are showing positive results,” Dr. Upadhaya
noted. “The next challenge is determining how these lessons can help guide restoration
strategies across a broader range of landscapes with different histories, needs, and
levels of investment.”
The studies also acknowledge the complexity of long-term recovery. Some improvements
remain gradual, and historic land-use impacts, including soil compaction, altered
hydrology, and habitat disturbance, continue to influence how quickly and fully landscapes
respond to restoration.
Dr. Gyawali, Pandeya’s major advisor and a co-author on both papers, emphasized that
the research provides an important contribution to understanding post-mining landscape
recovery in Appalachia.
“Together, these studies offer one of the most comprehensive assessments of post-mining
landscape recovery in Appalachia,” Dr. Gyawali said. “They demonstrate that strategic,
policy-driven restoration can produce measurable environmental gains, even in historically
altered regions. For policymakers and land managers, the priority now must be to sustain
and strengthen these efforts in ways that support long-term environmental and economic
resilience.”
The research reflects Kentucky State’s growing capacity in geospatial analysis, ecosystem
modeling, and applied environmental science. Through CGIES, researchers are using
social-ecological systems approaches to examine how land use, public policy, community
priorities, and environmental conditions interact across complex landscapes.
“At 鶹ֱ, CGIES applies geospatial analysis, advanced modeling
tools, satellite data, and human-dimensions research to address complex ecosystem
restoration challenges in Eastern Kentucky,” Dr. Gyawali said. “This work is generating
data-driven insights that can inform more effective policies for watershed management,
environmental restoration, and sustainable regional development.”
Pandeya recently presented the findings at the 鶹ֱ Small Farms
Conference–Eastern Kentucky, held April 10-11 at the Whitley County Extension Office
in Williamsburg.
The projects were supported by USDA Evans-Allen grants, including “Studying Long-term
Agroecosystems Changes in Reclaimed Mine Land Properties in Eastern Kentucky” (Accession
No. 7005721) and “Water-Energy-Food Nexus: Understanding and Managing the Complex
Interaction between Water, Energy, and Food for the Sustainable Agricultural Landscape”
(Accession No. 7007252).
