Study on the Spatiotemporal Evolution and Spatial Differentiation Pattern of Carbon Sink in China&#x02019;s Tea Industry

YUAN Liwen; ZHANG Junbiao; QIN Jiangnan

doi:10.13305/j.cnki.jts.2024.01.011

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Journal of Tea Science ›› 2024, Vol. 44 ›› Issue (1) : 149-160. DOI: 10.13305/j.cnki.jts.2024.01.011

Research Paper

Study on the Spatiotemporal Evolution and Spatial Differentiation Pattern of Carbon Sink in China’s Tea Industry

YUAN Liwen¹, ZHANG Junbiao^2,3,*, QIN Jiangnan¹

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Abstract

The tea garden ecosystem has an important carbon storage function. Analyzing and evaluating the carbon sink level during the production and planting process of tea gardens is of great significance for scientifically evaluating the potential ecological value of tea gardens and promoting the green and low-carbon development of the tea industry. This paper selected data from 16 major tea producing provinces in China from 1978 to 2020, used biomass models of tea plant growth cycles and soil carbon content models to calculate and evaluate the basic situation of carbon sinks in China’s tea industry. The center of gravity fitting model was used to analyze the spatiotemporal evolution of carbon sinks in the tea industry, and the driving factors of spatial differentiation were explored in conjunction with geographic detector models. The results show that: (1) The total carbon sink of China’s tea industry had shown a phased growth trend, reaching 735.311 million tons in 2020, and the accumulation of soil carbon sink was higher than that of plant carbon sink. The carbon sink intensity showed a “rise-decrease-rise” characteristic. (2) There were significant differences in carbon sink intensity among different provinces in the tea industry. High-intensity provinces were concentrated in the eastern coastal and western regions of China, and the carbon sink gravity center had long been located within Hunan province, but there was a slight trend of westward displacement. (3) The agricultural subsidies and the development level of agricultural economy were important driving forces that affect the spatial distribution pattern of carbon sinks in China’s tea industry, but there were differences in the dominant factors for the spatial differentiation of carbon sinks in different regions. Based on this, this paper proposed relevant suggestions from the management and operation of carbon sinks in the tea industry, as well as the formulation of industrial policies.

Key words

carbon sink / driving factors / evolution / spatial-temporal evolution / tea industry

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YUAN Liwen, ZHANG Junbiao, QIN Jiangnan. Study on the Spatiotemporal Evolution and Spatial Differentiation Pattern of Carbon Sink in China’s Tea Industry[J]. Journal of Tea Science. 2024, 44(1): 149-160 https://doi.org/10.13305/j.cnki.jts.2024.01.011

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