Characteristics of surface evapotranspiration and its response to climate and land use and land cover in the Huai River Basin of eastern China

2020 ◽  
Vol 28 (1) ◽  
pp. 683-699
Author(s):  
Meng Li ◽  
Ronghao Chu ◽  
Abu Reza Md. Towfiqul Islam ◽  
Shuanghe Shen
Keyword(s):  
Land Use ◽  
Land Cover ◽  
River Basin ◽  
Eastern China ◽  
Huai River Basin ◽  
Huai River ◽  
The Huai River Basin

scholarly journals Spatial variation of stable isotopic composition in surface waters of the Huai River basin, China and the regional hydrological implication

2017 ◽  
Vol 49 (5) ◽  
pp. 1452-1466 ◽  
Author(s):  
Liang Zhang ◽  
Ruiqiang Yuan ◽  
Xianfang Song ◽  
Jun Xia
Keyword(s):  
River Basin ◽  
Surface Waters ◽  
Large Scale ◽  
Eastern China ◽  
Lower Latitude ◽  
Huai River Basin ◽  
Study Results ◽  
Huai River ◽  
Δ18o And Δd ◽  
The Huai River Basin

Abstract Oxygen (δ18O) and hydrogen (δD) stable isotopes in the surface waters of the Huai River basin were analyzed in this study. Results indicated the northern waters had higher δ18O and δD than the southern waters, the water δ18O and δD increased along the water flow directions. These variations mostly resulted from the spatial differences of precipitation and evaporation. Comparing with published different continents' river water δ18O data, this study suggests that evaporation effect is a more plausible interpretation than altitude effect as the cause of δ18O increasing from upriver to downriver waters. This region's local surface water line (LSWL, δD = 5.36δ18O − 18.39; r2 = 0.84) represents one of the first presented LSWLs in eastern China. The correlation between d-excess and δ18O demonstrates this region is dominated by the Pacific oceanic moisture masses in summer. Comparing the various LSWLs from eastern China and eastern United States river waters, this study proposes a hypothesis that the water LSWLs slopes of lower latitude regions may be less than those of higher latitude regions within similar topographic areas. This hypothesis may be tested in other geographically comparable coupled areas in the world if corresponding large-scale data can be found.

The Holocene optimum (HO) and the response of human activity: A case study of the Huai River Basin in eastern China

2018 ◽  
Vol 493 ◽  
pp. 31-38 ◽  
Author(s):  
Shiwei Jiang ◽  
Wuhong Luo ◽  
Luyao Tu ◽  
Yanyan Yu ◽  
Fang Fang ◽  
...  
Keyword(s):  
River Basin ◽  
Human Activity ◽  
Eastern China ◽  
The Holocene ◽  
Huai River Basin ◽  
Huai River ◽  
The Huai River Basin

scholarly journals Variations of Drought Tendency, Frequency, and Characteristics and Their Responses to Climate Change under CMIP5 RCP Scenarios in Huai River Basin, China

Water ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2174 ◽  
Author(s):  
Jingcai Wang ◽  
Hui Lin ◽  
Jinbai Huang ◽  
Chenjuan Jiang ◽  
Yangyang Xie ◽  
...  
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Eastern China ◽  
Cmip5 Models ◽  
Drought Severity ◽  
Global Circulation Models ◽  
Huai River Basin ◽  
Huai River ◽  
The Future ◽  
The Impact

Huai River Basin (HRB) is an important food and industrial production area and a frequently drought-affected basin in eastern China. It is necessary to consider the future drought development for reducing the impact of drought disasters. Three global circulation models (GCMs) from Coupled Model Intercomparison Project phase 5 (CMIP5), such as CNRM-CM5 (CNR), HadGEM2-ES (Had) and MIROC5 (MIR), were used to assessment the future drought conditions under two Representative Concentration Pathways (RCPs) scenarios, namely, RCP4.5 and RCP8.5. The standardized precipitation evapotranspiration index (SPEI), statistical method, Mann-Kendall test, and run theory were carried out to study the variations of drought tendency, frequency, and characteristics and their responses to climate change. The research showed that the three CMIP5 models differ in describing the future seasonal and annual variations of precipitation and temperature in the basin and thus lead to the differences in describing drought trends, frequency, and drought characteristics, such as drought severity, drought duration, and drought intensity. However, the drought trend, frequency, and characteristics in the future are more serious than the history. The drought frequency and characteristics tend to be strengthened under the scenario of high concentration of RCP8.5, and the drought trend is larger than that of low concentration of RCP4.5. The lower precipitation and the higher temperature are the main factors affecting the occurrence of drought. All three CMIP5 models show that precipitation would increase in the future, but it could not offset the evapotranspiration loss caused by significant temperature rise. The serious risk of drought in the future is still higher. Considering the uncertainty of climate models for simulation and prediction, attention should be paid to distinguish the effects of different models in the future drought assessment.

Sign in / Sign up

Export Citation Format

Share Document