Impacts of land use/land cover and climate change on hydrological cycle in the Xiaoxingkai Lake Basin

Xiao, Feiyan; Wang, Xunming; Fu, Congsheng

doi:10.1016/j.ejrh.2023.101422

Cited by 8 publications

(4 citation statements)

References 59 publications

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“…Improper land management practices may result in water pollution from agricultural runoff, pesticides, and fertilisers, impacting water ecosystems and human health [32]. Also, land-use changes can alter hydrological cycles, leading to changes in local water availability and exacerbating water scarcity in certain regions [33]. For example, deforestation and land conversion in the Amazon rainforest for agricultural expansion in Brazil have resulted in significant consequences for land and water resources [34].…”

Section: Land As the Bonding Element: Exploring The Dynamic Interplay...mentioning

confidence: 99%

Sustainable Land Governance for Water–Energy–Food Systems: A Framework for Rural and Peri-Urban Revitalisation

Durán-Díaz

2023

Land

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This research paper addresses the need for an adaptable theoretical framework in the context of sustainable land governance for Water–Energy–Food (WEF) systems, bridging the gap between international guidelines and contextual realities. The novel framework is useful to effectively tackle the intricate challenges of rural and peri-urban revitalisation in the Global South by providing a holistic approach that considers the multi-dimensional interactions of land with water, energy, and food systems. The proposed framework encompasses three main objectives: (1) a top-down approach involving policy review and legal framework analysis to contextualise and inform the decision-making process; (2) a bottom-up approach based on case studies, enabling ground-level insights, stakeholder identification, and participatory mapping to empower rural and peri-urban communities; (3) a geospatial approach utilizing GIS and spatial analysis to study the implications of land within WEF systems. Drawing on mixed methods, including a literature review, a policy review, interviews, surveys, focus group discussions, and participatory action research grounded on case studies, this research emphasises the need to integrate both top-down and bottom-up approaches for comprehensive sustainable land governance. Over the course of 2018 to 2023, 22 master’s theses were supervised, each addressing the framework’s research objectives in 14 countries in Africa, Asia, the Middle East, and Latin America. Sixteen capacity building workshops in 11 countries engaged 851 participants, fostering knowledge exchange; 6 participatory action research (PAR) projects involved the installation of projects to advance food sovereignty in small communities in the Global South, following needs assessments. We showcase in this paper the PAR successfully implemented in Gitaraga, Rwanda, to validate the practical application of the proposed framework. The methodology has been useful for determining transversality, sustainability, inclusivity, adaptability, evidence-based decision-making, and policy integration as the core principles of sustainable land governance for WEF systems. The research contributes valuable insights to inform future interventions and policies that promote rural and peri-urban revitalization while addressing the ever-evolving challenges of WEF systems in the Global South.

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Section: Land As the Bonding Element: Exploring The Dynamic Interplay...mentioning

confidence: 99%

Sustainable Land Governance for Water–Energy–Food Systems: A Framework for Rural and Peri-Urban Revitalisation

Durán-Díaz

2023

Land

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“…26 Expansion of cropland, urbanization, and shrunk natural vegetation may cause an increase in surface runoff. 18,27 A Study by Nie et al 28 in the San Pedro Watershed affirmed that the transformation of LULC into residential areas decreased the water yield in 1986, 1992, and 1997, while the increase in agriculture increased runoff. 29 A comprehensive and associative approach is essentially needed to have a better understanding of cause and effect of climate variability and LULC change leading to stress on various hydrological elements and sediment export within the watershed.…”

Section: Introductionmentioning

confidence: 98%

Hydrological response to land use land cover and climate variability, and simulation of sediment export and water yield in the catchment Kotri Sindh Pakistan using Soil and Water Assessment tool model

Chhachhar,

Abbasi

2024

Science Progress

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The water availability concerns have been increasing due to significant impacts of land use land cover change, and climate variability. In terms of developing countries, it is one of the biggest challenges to overcome and manage sustainability in the present and future. This study aims to evaluate the change in hydrological components and simulation of sediment yield and water yield on the large-scale basin of Kotri barrage with a change in runoff due to a change in land use land cover. This study has been done on the watershed as well as the sub-watershed level to have an accurate estimation and simulation by finding the response of hydrological components toward its natural and human-induced factors using the Soil and Water Assessment tool with high-resolution geospatial-temporal inputs over the Kotri catchment. The sediment and water yield were quantified using 42 years of simulation (1981–2022) on the sub-basin level, projected to land use land cover 1990, 2000, 2010, and 2022. The increase in deforestation, agriculture, and settlement areas resulted increase in sediment load in the catchment. The sub-basins 14, 11, 12, and 13, with a high elevation and slope and with less vegetation showed higher sediment load and water yield than the sub-basins with gentle slope and with high natural vegetation cover. The sub-basins 10, 4, and 1 showed high water yield availability compared to basins 2, 3, 5, 6, 7, 8, 9. This may be the result of vegetation differences. However, contained less sediment load than basins 14, 11, 12, and 13. The main objective was to quantify the significant changes affecting catchment and sub-catchment areas, to have a better understanding of the management plan regarding land use land cover. The simulated data was further projected to prediction using machine algorithms (autoregressive integrated moving average) model for precipitation prediction, and (seasonal autoregressive integrated moving average with exogenous factors) model to predict the sediment yield and water yield in the catchment to 2060.

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“…Alterations in LULC have been noted to substantially impact surface runoff [8,9], streamflow [10,11], flood frequency [12], base flow [8], groundwater replenishment [13], and evapotranspiration [3,8] within a watershed and hydrological cycles in general [14]. The climate also substantially influences the various components of the hydrologic cycle [15].…”

Section: Introductionmentioning

confidence: 99%

Alterations in Hydrological Responses under Changing Climate and Land Use/Land Cover across Contrasting Agroecological Environments: A Case Study on the Chemoga Watershed in the Upper Blue Nile Basin, Ethiopia

Meshesha,

Tsunekawa,

Haregeweyn

et al. 2024

Water

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We analyzed hydrological responses to changing climate and land use/land cover (LULC) for the past (1985–2020) and future (2021–2080) in the Chemoga watershed of the Upper Blue Nile Basin. The watershed comprises four agroecological environments: Moist Kolla, Moist Weyna Dega, Moist Dega, and Wet Wurch. Past and projected LULC changes under business-as-usual (BAU) and land conservation (LC) scenarios were utilized. Climate projections from 2021 to 2080, under two Shared Socioeconomic Pathways (SSP2-4.5 and SSP5-8.5), were downscaled from Global Climate Models. Utilizing the Soil and Water Analysis Tool, we assessed impacts on mean annual surface runoff (SR) and evapotranspiration (ET). Maximum and minimum temperatures increased significantly in the past and future climate scenarios, with a significant rainfall increase observed under SSP5-8.5. Historical trends revealed a 16.6% increase in SR and 7% in ET from 1983–2002 to 2003–2020. Under BAU LULC with the SSP2-4.5 (SSP5-8.5) climate scenario, SR increased by 24% (26.1%) and ET by 3.1% (4.4%) from 2003–2020 to 2021–2050, followed by a subsequent SR rise of 13.7% (14.0%) and ET increase of 6.0% (5.7%) from 2021–2050 to 2051–2080. Conversely, the LC LULC with SSP2-4.5 (SSP5-8.5) resulted in a 5.3% (4.2%) SR decrease and ET increase of 9.7% (11.3%) from 2003–2020 to 2021–2050 and a further SR decrease of 1% (0.7%) and 6.1% (6.9%) ET increase from 2021–2050 to 2051–2080. The Moist Kolla agroecology experienced the highest SR increase due to vegetation clearances for commercial farming. Meanwhile, the LC scenario indicated substantial decreases in SR and marginal increases in ET in the Moist Weyna Dega agroecology due to forest restoration on steep slopes. Overall, SR showed greater sensitivity to LULC changes, while ET was more responsive to climate changes. The results emphasize considering diverse agroecological contexts for effective water resource management under changing climate and LULC scenarios.

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Impacts of land use/land cover and climate change on hydrological cycle in the Xiaoxingkai Lake Basin

Cited by 8 publications

References 59 publications

Sustainable Land Governance for Water–Energy–Food Systems: A Framework for Rural and Peri-Urban Revitalisation

Sustainable Land Governance for Water–Energy–Food Systems: A Framework for Rural and Peri-Urban Revitalisation

Hydrological response to land use land cover and climate variability, and simulation of sediment export and water yield in the catchment Kotri Sindh Pakistan using Soil and Water Assessment tool model

Alterations in Hydrological Responses under Changing Climate and Land Use/Land Cover across Contrasting Agroecological Environments: A Case Study on the Chemoga Watershed in the Upper Blue Nile Basin, Ethiopia

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