Assessment of land use and climate change effects on hydrology in the upper Siem Reap River and Angkor Temple Complex, Cambodia

Chim, Kosal; Tunnicliffe, Jon; Shamseldin, Asaad Y.; Bun, H.

doi:10.1016/j.envdev.2021.100615

Cited by 21 publications

(8 citation statements)

References 68 publications

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“…These changes particularly focus on deforestation, agricultural expansion, and urbanization, yet studies on climate and land interactions are very limited in range and time for this area. Two recent studies, by Chim et al [34,35], focus on the present and future climate conditions at the World Heritage site of Angkor and the upper Siem Reap catchment area, but most climate studies in this area focus on historical climate accounts, perhaps because the past has many implications for the future [36,37]. In the 13th century C.E., a climatic shift occurred consisting of intense rainfall and drought [38,39].…”

Section: Climate Conditionsmentioning

confidence: 99%

“…Average annual precipitation typically ranges between 1050 to 1800 mm but can vary from year to year [49]. On average, the area over the Tonle Sap floodplain experiences the least amount of rainfall at approximately 1180 mm [48], while central Angkor and the city of Siem Reap receives rainfall within a 1425-1475 mm range with higher amounts in PKNP reaching approximately 1850 mm (34)(35)48]. The average temperature of the region is 28 • C [48], with minimum and maximum averages at Siem Reap ranging between 24 • C to 34 • C [34,35].…”

Section: Climate Conditionsmentioning

confidence: 99%

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Temperature Variation and Climate Resilience Action within a Changing Landscape

Marajh

2022

Remote Sensing

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Temperature change can have profound impacts on livelihood activities and human well-being. Specific factors such as land transitions and climate knowledge can influence temperature variation and actions for adaptation. In addition to meteorological data, this study integrates land surface temperature (LST) derived from satellite imagery and local temperature perceptions obtained through interviews to advance a deeper understanding of spatial temperature and its impacts, which is not often seen within climate studies. This study examines local temperature across three different land types (rural mountains, rural agricultural lowlands, urban areas) in the Greater Angkor Region of Cambodia to highlight important insights about temperature and climate resilience action. The results revealed that changes in temperature were most pronounced in Phnom Kulen National Park (rural mountain) and in the rural agricultural lowlands, where residents discussed direct impacts and disruptions to their lives. Temperature, in both the LST results and through local perceptions, demonstrated a strong correlation to ground features, where areas with low vegetation exhibited high temperatures and areas with high vegetation observed low temperatures. While climate action in the form of tree planting and forest conservation are major climate mitigation strategies being undertaken in this region, social awareness and the ability to adapt to changes in temperature was revealed to be uneven across the landscape, suggesting that local entities should mobilize around gaining more education and training for all residents.

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Section: Climate Conditionsmentioning

confidence: 99%

Section: Climate Conditionsmentioning

confidence: 99%

Temperature Variation and Climate Resilience Action within a Changing Landscape

Marajh

2022

Remote Sensing

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“…Overexploitation and utilization of water resources, land use changes in river basins, and anthropogenic pollution have caused deterioration in river ecological systems [ 1 , 2 , 3 ]. The rise in river degradation globally has spurred research on river ecological restoration [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Water Quality and Microbial Community in the Context of Ecological Restoration: A Case Study of the Yongding River, Beijing, China

Sun

Zhang

et al. 2022

IJERPH

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Ecological water replenishment via interbasin water diversion projects provides opportunities for ecological river restoration. Untangling water quality changes, microbiota dynamics, and community functions is necessary for sustainable ecological management. Using the Yongding River as a case study, we monitored the water quality and applied genomic sequencing to investigate microbial communities of the river in different stages after ecological water replenishment. Our results showed that river water quality represented by chemical oxygen demand (COD), total nitrogen (TN), and chlorophyll-a (Chl-a) did not change significantly during months after water replenishment. The bacterial community composition varied in different months and river subsections. The Cyanobium_PCC-6307, CL500-29 marine group, and Pseudomonas were dominant in the later stages after water replenishment. Water temperature, pH, and nutrient levels significantly affected the microbial community composition, and ecological restoration may have the potential to influence nitrogen cycling in the river. Our results can provide ecological insights into sustainable water quality maintenance and river management following ecological restoration enabled by ecological water replenishment.

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“…Climate change and land use/cover change alter hydrological processes such as surface runoff, base flow, evapotranspiration, and streamflow and impact the variability of these processes over time and space ( Mango et al., 2010 ; Rahman et al., 2015 ). With the advancement in hydrological modeling, researchers globally have been able to investigate the impact of climate change and land use/cover change on hydrology at different scales ( Mahe, 2006 ; Lafontaine et al., 2015 ; Pervez and Henebry, 2015 ; Zhang et al., 2016 ; Thi et al., 2017 ; Yang et al., 2019 ; Osei et al., 2019 ; Nyatuame et al., 2020 ; Ragab, 2020 ; Chim et al., 2021 ; Hu et al., 2021 ; Teklay et al., 2021 ). Marhaento et al.…”

Section: Introductionmentioning

confidence: 99%