Effects of Stand Structure and Topography on Forest Vegetation Carbon Density in Jiangxi Province

Stand structure and topography are important factors affecting forest vegetation carbon density (FVCD). Revealing the interaction mechanisms between stand structure and topography on FVCD is of great significance for enhancing forest vegetation carbon storage and achieving regional carbon neutrality...

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Autores principales:	Changshun Zhang, Qinghua Deng, Aibing Liu, Chunlan Liu, Gaodi Xie
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	stand characteristics terrain factor driving force regression analysis Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/4c5f30ffa7e34c7c8d7843f97609ccad
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spelling	oai:doaj.org-article:4c5f30ffa7e34c7c8d7843f97609ccad2021-11-25T17:37:47ZEffects of Stand Structure and Topography on Forest Vegetation Carbon Density in Jiangxi Province10.3390/f121114831999-4907https://doaj.org/article/4c5f30ffa7e34c7c8d7843f97609ccad2021-10-01T00:00:00Zhttps://www.mdpi.com/1999-4907/12/11/1483https://doaj.org/toc/1999-4907Stand structure and topography are important factors affecting forest vegetation carbon density (FVCD). Revealing the interaction mechanisms between stand structure and topography on FVCD is of great significance for enhancing forest vegetation carbon storage and achieving regional carbon neutrality. Based on stratified sampling, systematic distribution and forest continuous inventory sample plots in Jiangxi province, the variation characteristics of FVCD and its correlations with stand structure and topographic factors were studied. The results are as follows: (1) The average FVCD in Jiangxi province was 44.23 Mg/ha, which was dominated by the carbon density of the arbor layer, accounting for about 81.39% of the total forest—far lower than the average level of global FVCD, which proved that the forest in Jiangxi province was dominated by middle-age and young forests with low carbon density, and also showed that the potential for forest vegetation carbon storage in Jiangxi province was huge. (2) Except for vegetation carbon densities of shrub and herb layers, the vegetation carbon densities of other forest layers in Jiangxi province were significantly different among different forest types. Volume per unit area was the most important factor affecting the vegetation carbon densities of arbor and total forest, and vegetation carbon density–volume models of the main forests were built for vegetation carbon density calculation in Jiangxi province. (3) The vegetation carbon densities of arbor layer, snag and log layer, and total forest increased significantly with increases in elevation and slope. Except for the shrub layer and herb layer, the vegetation carbon densities of the other layers and the total forest had extremely significant or significant differences between slope position gradients—indicating that the effect of topography on FVCD in Jiangxi province was significant, mainly through influencing of forest distribution and human disturbance intensity.Changshun ZhangQinghua DengAibing LiuChunlan LiuGaodi XieMDPI AGarticlestand characteristicsterrain factordriving forceregression analysisPlant ecologyQK900-989ENForests, Vol 12, Iss 1483, p 1483 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	stand characteristics terrain factor driving force regression analysis Plant ecology QK900-989
spellingShingle	stand characteristics terrain factor driving force regression analysis Plant ecology QK900-989 Changshun Zhang Qinghua Deng Aibing Liu Chunlan Liu Gaodi Xie Effects of Stand Structure and Topography on Forest Vegetation Carbon Density in Jiangxi Province
description	Stand structure and topography are important factors affecting forest vegetation carbon density (FVCD). Revealing the interaction mechanisms between stand structure and topography on FVCD is of great significance for enhancing forest vegetation carbon storage and achieving regional carbon neutrality. Based on stratified sampling, systematic distribution and forest continuous inventory sample plots in Jiangxi province, the variation characteristics of FVCD and its correlations with stand structure and topographic factors were studied. The results are as follows: (1) The average FVCD in Jiangxi province was 44.23 Mg/ha, which was dominated by the carbon density of the arbor layer, accounting for about 81.39% of the total forest—far lower than the average level of global FVCD, which proved that the forest in Jiangxi province was dominated by middle-age and young forests with low carbon density, and also showed that the potential for forest vegetation carbon storage in Jiangxi province was huge. (2) Except for vegetation carbon densities of shrub and herb layers, the vegetation carbon densities of other forest layers in Jiangxi province were significantly different among different forest types. Volume per unit area was the most important factor affecting the vegetation carbon densities of arbor and total forest, and vegetation carbon density–volume models of the main forests were built for vegetation carbon density calculation in Jiangxi province. (3) The vegetation carbon densities of arbor layer, snag and log layer, and total forest increased significantly with increases in elevation and slope. Except for the shrub layer and herb layer, the vegetation carbon densities of the other layers and the total forest had extremely significant or significant differences between slope position gradients—indicating that the effect of topography on FVCD in Jiangxi province was significant, mainly through influencing of forest distribution and human disturbance intensity.
format	article
author	Changshun Zhang Qinghua Deng Aibing Liu Chunlan Liu Gaodi Xie
author_facet	Changshun Zhang Qinghua Deng Aibing Liu Chunlan Liu Gaodi Xie
author_sort	Changshun Zhang
title	Effects of Stand Structure and Topography on Forest Vegetation Carbon Density in Jiangxi Province
title_short	Effects of Stand Structure and Topography on Forest Vegetation Carbon Density in Jiangxi Province
title_full	Effects of Stand Structure and Topography on Forest Vegetation Carbon Density in Jiangxi Province
title_fullStr	Effects of Stand Structure and Topography on Forest Vegetation Carbon Density in Jiangxi Province
title_full_unstemmed	Effects of Stand Structure and Topography on Forest Vegetation Carbon Density in Jiangxi Province
title_sort	effects of stand structure and topography on forest vegetation carbon density in jiangxi province
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/4c5f30ffa7e34c7c8d7843f97609ccad
work_keys_str_mv	AT changshunzhang effectsofstandstructureandtopographyonforestvegetationcarbondensityinjiangxiprovince AT qinghuadeng effectsofstandstructureandtopographyonforestvegetationcarbondensityinjiangxiprovince AT aibingliu effectsofstandstructureandtopographyonforestvegetationcarbondensityinjiangxiprovince AT chunlanliu effectsofstandstructureandtopographyonforestvegetationcarbondensityinjiangxiprovince AT gaodixie effectsofstandstructureandtopographyonforestvegetationcarbondensityinjiangxiprovince
_version_	1718412163189571584

Effects of Stand Structure and Topography on Forest Vegetation Carbon Density in Jiangxi Province

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