Abstract

Assessing the impacts of land use and land cover change (LUCC) on regional climate is essential for understanding land-atmosphere interactions and for designing climate adaptation and mitigation strategies. Using the weather research and forecasting (WRF) model, we examined how different land use and land cover patterns affect regional climate in the agro-pastoral transitional zone of North China, whose environmental and socioeconomic conditions are sensitive to climate change. We parameterized WRF using land use and land cover maps corresponding to 2001 and 2010 conditions, which differ in the representation of four land surface biophysical parameters: vegetation fraction, leaf area index (LAI), albedo, and emissivity. From 2001 to 2010, vegetation fraction and LAI increased in summer, emissivity increased and albedo decreased in winter. Our WRF simulations show that differences in land use and land cover patterns led to widespread reduction in summer temperature with local cooling on the order of 1 °C, and extensive increase in winter temperature with local warming exceeding 0.8 °C. By contrast, simulations using the default landscape representation, provided by WRF itself, show only minor and random changes in temperature. Model evaluation further reveals that our simulations with appropriate land surface properties improve the performance of the WRF model. Our findings demonstrate that LUCC in Northern China has altered the regional climate over the past decade. The magnitude and spatial patterns of temperature changes quantified by our simulations provide useful information for understanding the impacts of LUCC on climate and for developing mitigation and adaptation strategies in arid and semiarid regions.

Original languageEnglish (US)
Article number124025
JournalEnvironmental Research Letters
Volume10
Issue number12
DOIs
StatePublished - Dec 29 2015

Fingerprint

Weather
Climate
Land use
regional climate
China
land cover
land use
weather
Research
Temperature
Climate Change
emissivity
leaf area index
simulation
albedo
land surface
mitigation
temperature
Surface Properties
socioeconomic conditions

Keywords

  • agro-pastoral transitional zone
  • climate change
  • land surface biophysical parameter
  • land use and land cover change
  • landscape pattern
  • mitigation and adaptation strategy

ASJC Scopus subject areas

  • Environmental Science(all)
  • Renewable Energy, Sustainability and the Environment
  • Public Health, Environmental and Occupational Health

Cite this

Impacts of land use and land cover change on regional climate : A case study in the agro-pastoral transitional zone of China. / Cao, Qian; Yu, Deyong; Georgescu, Matei; Han, Zhe; Wu, Jianguo.

In: Environmental Research Letters, Vol. 10, No. 12, 124025, 29.12.2015.

Research output: Contribution to journalArticle

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