Journal
AGRICULTURAL AND FOREST METEOROLOGY
Volume 325, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.agrformet.2022.109136
Keywords
Crop greening; Temperature feedback; Asymmetric diurnal temperature cycle; Biophysical mechanism; Regional climate downscaling; Northeast China
Categories
Funding
- Strategic Priority Research Program (A) of the Chinese Academy of Sciences [XDA28080503]
- National Natural Science Foundation of China [42071025]
- Innovation Team Project of Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences [2022CXTD02]
- DOE [DE-A06-76RLO 1830]
Ask authors/readers for more resources
The study found that the increased crop greening in the mid-high latitude Northeast China can slow down climate warming and have a negative impact on surface temperature. The cooling effect induced by crop greening is more significant during the day than at night, leading to changes in the diurnal temperature cycle in the region.
Mid-high latitude Northeast China witnessed significant crop greening from 2001 to 2020, as evidenced by satellite records and field observations. The land surface temperature of croplands during the growing season showed a decreasing trend, suggesting negative surface temperature feedback to crop greening of agricultural ecosystems in mid-high latitude Northeast China. Using time-series remote sensing products and long-term scenario simulations, the present study highlights that crop greening can slow climate warming. Our study noted a stronger surface cooling effect induced by crop greening during the growing season in the day than at the night, which contributed to asymmetric diurnal temperature cycle changes in Northeast China. In addition, our biophysical mechanism analysis revealed aerodynamic and surface resistances as the major driving factors for the daytime land surface temperature (LST) cooling effect induced by crop greening, while the ground heat flux and ambient temperature feedback as the major attributes of the nighttime LST cooling impact due to crop greening.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available