Quantitative assessment of the impact of climate variability and human activities on runoff changes: a case study in four catchments of the Haihe River basin, China

2012 ◽  
Vol 27 (8) ◽  
pp. 1158-1174 ◽  
Author(s):  
Weiguang Wang ◽  
Quanxi Shao ◽  
Tao Yang ◽  
Shizhang Peng ◽  
Wanqiu Xing ◽  
...  
Keyword(s):  
Climate Variability ◽  
River Basin ◽  
Human Activities ◽  
Quantitative Assessment ◽  
Haihe River Basin ◽  
Haihe River ◽  
Runoff Changes ◽  
The Haihe River Basin ◽  
The Impact

Attribution for decreasing streamflow of the Haihe River basin, northern China: Climate variability or human activities?

2012 ◽  
Vol 460-461 ◽  
pp. 117-129 ◽  
Author(s):  
Zhenxin Bao ◽  
Jianyun Zhang ◽  
Guoqing Wang ◽  
Guobin Fu ◽  
Ruimin He ◽  
...  
Keyword(s):  
Climate Variability ◽  
River Basin ◽  
Human Activities ◽  
Northern China ◽  
Haihe River Basin ◽  
Haihe River ◽  
The Haihe River Basin

scholarly journals Climate, CO2, and Anthropogenic Drivers of Accelerated Vegetation Greening in the Haihe River Basin

2022 ◽  
Vol 14 (2) ◽  
pp. 268
Author(s):  
Wenjing Yang ◽  
Yong Zhao ◽  
Qingming Wang ◽  
Buliao Guan
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Human Activities ◽  
Co2 Concentration ◽  
Haihe River Basin ◽  
Mountainous Areas ◽  
Haihe River ◽  
The Haihe River Basin ◽  
The Impact ◽  
Anthropogenic Drivers

Vegetation regulates the exchange of terrestrial carbon and water fluxes and connects the biosphere, hydrosphere, and atmosphere. Over the last four decades, vegetation greening has been observed worldwide using satellite technology. China has also experienced a notably widespread greening trend. However, the responsiveness of vegetation dynamics to elevated CO2 concentration, climate change, and human activities remains unclear. In this study, we attempted to explore the impact of natural (precipitation, air temperature), biogeochemical (CO2), and anthropogenic drivers (nighttime light, afforestation area) on changes in vegetation greenness in the Haihe River Basin (HRB) during 2002–2018 at the county-level. We further determined the major factors affecting the variation in satellite-derived normalized difference vegetation index (NDVI) from moderate resolution imaging spectroradiometer (MODIS) for each county. The results indicated that over 85% of the counties had a significantly increased NDVI trend, and the average linear trend of annual NDVI across the study region was 0.0037 per year. The largest contributor to the NDVI trend was CO2 (mean contribution 45%), followed by human activities (mean contribution of 27%). Additionally, afforestation was a pronounced driving force for NDVI changes in mountainous areas, resulting from ecosystem restoration efforts. Our findings emphasize the crucial role of CO2 fertilization in vegetation cover change, while considering CO2 concentration, climate change, and human activities, and shed light on the significant influences of afforestation programs on water resources, especially in mountainous areas.

Simulated impacts of irrigation on evapotranspiration in a strongly exploited region: a case study of the Haihe River basin, China

2014 ◽  
Vol 29 (12) ◽  
pp. 2704-2719 ◽  
Author(s):  
Huimin Lei ◽  
Dawen Yang ◽  
Hanbo Yang ◽  
Zaijian Yuan ◽  
Huafang Lv
Keyword(s):  
River Basin ◽  
Haihe River Basin ◽  
Haihe River ◽  
The Haihe River Basin
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