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Library Effects of land use/cover change on land surface energy partitioning and climate in Northeast China

Effects of land use/cover change on land surface energy partitioning and climate in Northeast China

Effects of land use/cover change on land surface energy partitioning and climate in Northeast China

Resource information

Date of publication
december 2016
Resource Language
ISBN / Resource ID
AGRIS:US201600126607
Pages
141-150

The Simple Biosphere Model (SiB2) and the 2 × 2 km resolution National Land use/Land Cover database were used to investigate the effects of Land Use/Cover Change (LUCC) on land surface energy balance and climate in Jilin Province, northeast China, from 1990 to 2005. The spatial patterns of the components of surface energy balance (i.e., net radiation (R ₙ), latent heat (LH), sensible heat (SH), and albedo (α)) and climate (i.e., canopy temperature (T c), diurnal temperature range (DTR)), as well as the roles of land cover type in variations of energy balance and climate, were investigated. The results showed that there were general similar trends in R ₙ, LH, SH, and α in the LUCC process. The spatial patterns of T c and DTR also showed consistent relationships with LUCC processes. Leaf area index (LAI) and canopy conductance (g c) were found to be the key factors in controlling the spatial patterns of the components of surface energy balance and T c. Using linear correlation method, the gaps of the components of surface energy balance were well-explained by the differences of LAI and g c, and R ₙ had a better correlation with T c and DTR, in the process of LUCC. The surface energy partitioning of R ₙ into LH and SH could not only dampen or strengthen the temperature difference, but also change the relative size of albedo-based R ₙ when the albedo gap was small, between land cover types.

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Authors and Publishers

Author(s), editor(s), contributor(s)

Liu, Fengshan
Tao, Fulu
Liu, Jiyuan
Zhang, Shuai
Xiao, Dengpan
Wang, Meng
Zhang, He
Bai, Huizi

Publisher(s)
Data Provider
Geographical focus