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The carbon cycle of forest ecosystems is a component of the global terrestrial ecosystem carbon cycle, and the productivity of forest ecosystems is significantly influenced by vegetation phenology. In this investigation, we simulated the spatiotemporal trends of the carbon cycle in forest ecosystems in Hangzhou between 2001 and 2020 by means of the phenology-driven InTEC model and analyzed the mechanisms of carbon cycle changes in response to phenological changes. The results of this study suggested that the gross primary productivity (GPP), the net primary production (NPP), and the net ecosystem productivity (NEP) have obvious heterogeneity in spatiotemporal distribution, and the tendency of the start of the growing season (SOS) advancement, the end of the growing season (EOS) postponement, and the length of the growing season (LOS) lengthening is significant for a GPP increase with positive effects. Both phenology and climate have direct impacts on carbon cycle changes, while climate change indirectly affects carbon cycle changes through phenology changes.
Details
Climate change;
Carbon cycle;
Primary production;
Trends;
Productivity;
Temporal distribution;
Potassium;
Time series;
Forests;
Ecosystems;
Heterogeneity;
Nitrogen;
Deforestation;
Vegetation;
Spatial distribution;
Remote sensing;
Carbon sequestration;
Growing season;
Wind;
Forest ecosystems;
Temperature;
Terrestrial ecosystems;
Senescence;
Cultural heritage;
Net Primary Productivity
; Li, Xuejian 1 ; Zhou Guomo 1 ; Mao Fangjie 1 ; Huang Zihao 1
; Xuan Jie 1 ; Zhao Yinyin 1 1 State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, China; [email protected] (M.H.); [email protected] (H.D.); [email protected] (G.Z.); [email protected] (F.M.); [email protected] (Z.H.); [email protected] (J.X.); [email protected] (Y.Z.), Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A & F University, Hangzhou 311300, China, School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou 311300, China