Impacts of climate change and LULC change on runoff in the Jinsha River Basin

Land use/land cover (LULC) and climate changes could affect water quantity and quality and thus hydrologic ecosystem services (ES). However, studies of these impacts on hydrologic ES are limited by the current methods and techniques. We attempted to find out how the LULC and climate changes impact hydrologic ES at different temporal scales so that decision-makers can easily understand hydrologic ES variations for guiding management plans. In this study, we analyzed the impacts of LULC and climate changes on hydrologic ES in the Milwaukee River basin, USA with a conceptual modeling framework for hydrologic ES. The model framework was applied to a series of climate and urban expansion scenarios. Two hydrologic responses (streamflow and sediment) and three hydrologic ES (water provision index (WPI), flood regulation index (FRI), and sediment regulation index (SRI)) were calculated. Major findings include: (1) Climate change has much larger impacts than LULC at the monthly scale. For example, the impacts of climate change on streamflow were −6 to 9 m3/s whereas those of LULC change were −0.4 to 0.2 m3/s. Also, WPI (ranging from 0 to 1) changed between −0.16 and 0.07 with climate change but between −0.02 and −0.001 with LULC changes. (2) Compared to changes at the annual scale, the results show much larger variabilities as monthly time-series and mean monthly numbers. These findings suggest that the climate change weighs more than the realistic LULC change in term of impacts on hydrologic ES and those impacts can be identified with results at the monthly temporal scale. This approach with the framework and scenarios can better support management planning for decision-makers with detailed results and temporal precision.

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Impacts of climate change on hydrological regimes in the Jinsha River Basin, China

10.22541/au.160447339.95368771/v1 ◽

2020 ◽

Author(s):

Xiaopei Ju ◽

Yuankun Wang ◽

Dong Wang ◽

Jichun Wu ◽

Yuwei Tao ◽

...

Keyword(s):

Climate Change ◽

River Basin ◽

Jinsha River ◽

Hydrological Regimes ◽

Impacts Of Climate Change

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Sensitivity assessment of the impacts of climate change on streamflow using climate elasticity in Tigris River Basin, Iraq

International Journal of Environmental Studies ◽

10.1080/00207233.2018.1494924 ◽

2018 ◽

Vol 76 (1) ◽

pp. 7-28 ◽

Cited By ~ 1

Author(s):

Alaa A. J. Al-Hasani

Keyword(s):

Climate Change ◽

River Basin ◽

Climate Elasticity ◽

Tigris River ◽

Sensitivity Assessment ◽

Impacts Of Climate Change

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Integrating Strategic Environmental Assessment to Climate Change Adaption in the Chao Phraya River Basin: Case Study Flood Management Plans in Ayutthaya

Sustainability in Environment ◽

10.22158/se.v6n2p55 ◽

2021 ◽

Vol 6 (2) ◽

pp. p55

Author(s):

Wilawan Boonsri Prathaithep ◽

Vilas Nitivattananon

Keyword(s):

Climate Change ◽

River Basin ◽

Environmental Assessment ◽

Flood Risk ◽

Assessment Tool ◽

Flood Management ◽

Integrated System ◽

Strategic Environmental Assessment ◽

Human Environment ◽

Impacts Of Climate Change

Traditionally, flood management has concentrated on providing protection against floods using technical measures, but there is currently an international shift towards a more integrated system of flood risk management, whereby flood risk is defined as the probability of flooding multiplied by the potential consequences. Climate change is a great challenge to sustainable development and the Millennium Development Goals (MDGs) in Thailand. The main purpose of this paper is to highlight the challenges associated with the current situation and projected impacts of climate change on the disasters and the human environment in Thailand, to review and explore the potential of Strategic Environmental Assessment (SEA), and to propose SEA in making informed decisions relevant to the implementation of the new adaptation framework in a flood management plan. Thus, current measures on how Thailand is responding to the recent impacts of climate change in river basin planning are presented. It is imperative that an appropriate environmental assessment tool, such as SEA be employed in making rational decisions regarding adaptation frameworks. SEA offers a structured and proactive environmental tool for integrating of climate change adaption into formulating Policies, Plans, and Programs (PPPs) among relevant sectors.

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