JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2022, Vol. 46 ›› Issue (3): 1-11.doi: 10.12302/j.issn.1000-2006.202110041

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Review on monitoring methods of the effects of forest changes on regional temperature based on multi-source remote sensing data

SHEN Wenjuan1,2(), JI Mei1, LI Mingshi1,2   

  1. 1. College of Forestry, Nanjing Forestry University, Nanjing 210037, China
    2. Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
  • Received:2021-10-22 Accepted:2022-03-20 Online:2022-05-30 Published:2022-06-10

Abstract:

Human activities contribute to forest changes by altering land cover, promoting changes in carbon budget and surface energy balance, further affecting climate at global and regional scales. Current studies on the impact of forest changes on regional temperature are mainly focused on the simple statistical method combining forest change data with temperature data with limited accuracy, however, studies on the effects of forest changes with high reliability and its biophysical processes on regional temperature indicate that an accurate and comprehensive understanding of the biophysical interaction mechanisms between forest and climate can provide a scientific support for the comprehensive assessment of forest ecosystems. The author made a comprehensive analysis of various monitoring methods of forest changes combined with thier biophysical processes based on multi-source remote sensing on regional temperature, and found that: (1) the limited availability of high-resolution forest change data from multiple sources has been hindering the accurate quantification of the impact of temperature changes; (2) the evaluation of results about quantifying the impact of the biophysical mechanism of forest charge on regional temperature based on the methods for integrating remote sensing observations is inconsistent. Therefore, the biophysical mechanism of forest change and the temperature effects are worthy of in-depth analysis. In the future, the cross-cutting advantages of rational integration of multiple data sources to explain forest response to climate effects should be fully utilized to understand the interaction between forest change, carbon cycle and climate under biophysical and biochemical mechanisms, and to maximize climate benefits through rational management of forest ecosystems.

Key words: forest change, biophysical mechanisms, temperature effects, multi-source remote sensing

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