TY - JOUR
T1 - Distinguishing the impacts of human activities and climate variability on runoff and sediment load change based on paired periods with similar weather conditions
T2 - A case in the Yan River, China
AU - Wang, Fei
AU - Hessel, Rudi
AU - Mu, Xingmin
AU - Maroulis, Jerry
AU - Zhao, Guangju
AU - Geissen, Violette
AU - Ritsema, Coen
PY - 2015
Y1 - 2015
N2 - Runoff and sediment loads from river basin are largely affected by the interplay of climate variability and human activities within the basin. However, distinguishing the impacts of climate variability and human activities would vastly improve our knowledge of water resources, climate variability and climate adaptation, and watershed management. We propose a new and simple method to determine the impact of human activities within paired datasets under the same or similar weather conditions (SWC). These weather conditions cover one or more meteorological elements such as precipitation, temperature, or evaporation. If there are two or more periods with similar weather conditions but different runoff, the relative runoff and sediment load changes can be considered a consequence of human-induced land surface changes. This study will report on the application of this new method, using the Yan River Basin in China as a case study. We found 10 sets PPs (paired periods) in 1. year intervals and 12 sets of PPs in intervals of 3. years when (1) there was a 2.0% and 1.0% difference of annual precipitation and annual ET0, respectively, (2) the relationship between monthly precipitation and ET0 of PPs was significant (. P
AB - Runoff and sediment loads from river basin are largely affected by the interplay of climate variability and human activities within the basin. However, distinguishing the impacts of climate variability and human activities would vastly improve our knowledge of water resources, climate variability and climate adaptation, and watershed management. We propose a new and simple method to determine the impact of human activities within paired datasets under the same or similar weather conditions (SWC). These weather conditions cover one or more meteorological elements such as precipitation, temperature, or evaporation. If there are two or more periods with similar weather conditions but different runoff, the relative runoff and sediment load changes can be considered a consequence of human-induced land surface changes. This study will report on the application of this new method, using the Yan River Basin in China as a case study. We found 10 sets PPs (paired periods) in 1. year intervals and 12 sets of PPs in intervals of 3. years when (1) there was a 2.0% and 1.0% difference of annual precipitation and annual ET0, respectively, (2) the relationship between monthly precipitation and ET0 of PPs was significant (. P
KW - Climate variability
KW - Human activity
KW - Precipitation
KW - Reference evapotranspiration (ET0)
KW - Similar weather condition (SWC)
KW - Surface runoff
U2 - 10.1016/j.jhydrol.2015.05.037
DO - 10.1016/j.jhydrol.2015.05.037
M3 - Article
AN - SCOPUS:84930942536
SN - 0022-1694
VL - 527
SP - 884
EP - 893
JO - Journal of Hydrology
JF - Journal of Hydrology
ER -