The influence of afforestation on land surface temperature in China

被引：2

作者：

Wang L. ^{[1
,2
]}

Duan S. ^{[2
]}

Zhang X. ^{[1
]}

Chang S. ^{[3
]}

Liu X. ^{[2
]}

Huang C. ^{[2
]}

Qian Y. ^{[3
]}

机构：

[1] School of Environment and Resources, Shanxi University, Taiyuan

[2] Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing

[3] Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing

来源：

National Remote Sensing Bulletin | 2021年 / 25卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Afforestation; IBM method; Land surface temperature; Non-radiative effect;

D O I：

10.11834/jrs.20211284

中图分类号：

学科分类号：

摘要：

In recent years, as China's afforestation plan continues, vegetation cover has continued to increase, which in turn affects China's surface environment. Land Surface Temperature (LST) is an important parameter that characterizes the physical processes of the surface, and is the driving factor for the energy exchange between the surface and the atmosphere. It is widely used in the research of basic subjects such as climate, hydrology, ecology and meteorology, and is one of the key parameters in many basic researches. To study the impact of afforestation strategies on local and regional scales and guide the implementation of corresponding policies, this study uses the IBM (Intrinsic Biophysical Mechanism) method to investigate the impact of afforestation in China on LST, and discusses the effects of radiative and non-radiative forcing and different vegetation cover types on LST. The results show that: (1) the influence of afforestation on LST is shown as a warming effect in the cold season in high latitudes, but as a cooling effect at all latitudes in the warm season. (2) The radiative effect of afforestation on LST in high latitude areas in cold season is relatively strong, while in other seasons, the non-radiative effect of afforestation on LST at various latitudes is dominant, and the radiative effect is relatively weak. (3) When open land is converted to forest land, different types of forest land cover have different characteristics of impact on LST. When open land is converted to deciduous broad-leaved forest, the impact on LST is similar to the overall impact of afforestation on LST, showing a warming effect in high latitude areas in the cold season, and a cooling effect in low latitude areas. The effect of open land into evergreen coniferous forests and evergreen broad-leaved forests on LST is shown as a cooling effect. This study analyzes the impact of afforestation on LST in the context of continuous afforestation in China. The research has practical significance for current afforestation policies and provides theoretical guidance for future afforestation strategies. © 2021, Science Press. All right reserved.

引用

页码：1862 / 1872

页数：10

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