Sensitivity of terrestrial water and carbon fluxes to climate variability in semi-humid basins of Haihe River, China
作者： X. Mo , S. Liu , S. Hu , J. Xia , Y. Shen
DOI: 10.1016/J.ECOLMODEL.2016.09.003
关键词:
摘要: Abstract Inter-annual climate variability dominates the evolution of eco-hydrological processes over water limited basins. Haihe Basin in semi-humid northern China is under significant change and serious human disturbance during recent decades. Integrated with NASA Terra-Modis remote sensing LAI data products, VIP model used to predict spatiotemporal variations evapotranspiration (ET) vegetation gross primary production (GPP) two catchments River branches from 2000 2013. Along precipitation increasing, average annual ET GPP are significantly increasing. The trends more distinct mountainous upstream areas. inter-annual highly correlated 12-month SPI (Standardized Precipitation Index), while monthly related clearly 3-month SPI. Sensitivity analysis shows that there remarkable differences elasticity coefficients both climatic factors. It found precipitation, solar radiation leaf area index most sensitive factors study basin. results helpful understand catchment mechanisms their responses change.
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