Predicting Vegetation Carbon Density Distribution in different Terrains in Subtropical Forests in China

Ji, Biyong; Yin, Jiayang; Shi, Yongjun; Xu, Lin; Jiang, Tao; Zhou, Yongqiang

doi:10.1080/10549811.2020.1773857

Cited by 4 publications

(2 citation statements)

References 62 publications

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“…Several studies have demonstrated that the twisting and strengthening of plant roots in soil can impede the expansion and contraction of the soil [27][28][29][30][31][32]. As a solution for slope protection, green ecological models have been utilized in engineering applications.…”

Section: Introductionmentioning

confidence: 99%

Research on the mechanism of plant root protection for soil slope stability

Cao,

Zhang,

Chen

et al. 2023

PLoS ONE

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In order to investigate the impact of herbaceous root development on soil slope stability in expansive soil areas, the research was conducted in the soil slope experimental area of Yaoshi Town, Shangzhou District, Shangluo City. Three types of herbaceous plants, namely Lolium perenne, Medicago, and Cynodon dactylon, were planted to examine their influence on slope stability. The results indicated that Lolium perenne had significantly higher root length density and root surface area density compared to Cynodon dactylon and Medicago. However, the root weight density of Cynodon dactylon was found to be highest. The roots of Lolium perenne, Cynodon dactylon, and Medicago were predominantly observed in diameter ranges of 0 < L ≤ 1.0 mm, 0 < L ≤ 2.5 mm, and 2.5 < L ≤ 3.0 mm, respectively. The roots of herbaceous plants have the ability to enhance water retention in soil, resist hydraulic erosion of slope soil, and reduce soil shrinkage and swelling. During the initial phase of herbaceous planting, there is an accelerated process of organic carbon mineralization in the soil. The roots of herbaceous plants play a crucial role in soil consolidation and slope protection. They achieve this by dispersing large clastic particles, binding small particles together, altering soil porosity, enhancing soil water retention, and reducing soil water infiltration. It was found that Lolium perenne and Medicago, which have well-developed roots, exhibited superior slope protection effects. These findings contribute to the theoretical understanding for the implementation of green ecological protection technology on soil slopes.

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Section: Introductionmentioning

confidence: 99%

Research on the mechanism of plant root protection for soil slope stability

Cao,

Zhang,

Chen

et al. 2023

PLoS ONE

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“…It includes adopting climate-resilient tree species, improving monitoring and early warning systems for pest plagues and forest fires, and promoting sustainable forest management practices that effectively reconcile economic interests with ecological protection [33]. In addition, China has been actively involved in afforestation and reforestation initiatives, which function as carbon reduction and make significant contributions to global climate change mitigation efforts [34,35]. Although China has a significant advancement in these efforts to remove the impact of climate change on forestry resources utilization efficiency and total factor productivity growth, this mission's success level is still undiscovered and worth investigating.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Climate Change on China’s Forestry Efficiency and Total Factor Productivity Change

Shah,

Hao,

Yan

et al. 2023

Forests

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The objective of this study is to examine the impact of climate change on forestry efficiency (FRE) and total factor productivity change (TFPC) in 31 provinces of China for a study period of 2001–2020. Additionally, the study aims to evaluate the success level of governmental initiatives used to mitigate climate change. Using the DEA-SBM, this study estimates the forestry efficiency for 31 Chinese provinces and seven regions. Results indicate that the average forestry efficiency score obtained is 0.7155. After considering climatic factors, the efficiency level is 0.5412. East China demonstrates the highest average efficiency with a value of 0.9247, while the lowest score of 0.2473 is observed in Northwest China. Heilongjiang, Anhui, Yunnan, and Tibet exhibit the highest efficiency scores. Mongolia, Heilongjiang, Sichuan, Hebei, and Hunan are the five provinces most affected by climate change. This study’s findings indicate that the average total factor forestry productivity (TFPC) is 1.0480, representing an increase of 4.80%. The primary determinant for change is technology change (TC), which surpasses efficiency change (EC). Including climate variables reduces total factor productivity change (TFPC) to 1.0205, mainly driven by a decrease in TC. The region of South China exhibits the highest total factor productivity change (TFPC) with a value of 1.087, whereas both Northeast China and Central China observe falls below 1 in TFPC. The Mann–Whitney U test provides evidence of statistically significant disparities in forestry efficiency and TFPC scores when estimated with and without incorporating climate factors. Kruskal–Wallis found a statistically significant difference in FRE and TFPC among seven regions.

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Interaction Effect of Stand Age and Diversity on Aboveground Wood Carbon Accumulation in Subtropical Mixed Forests of the Zhejiang Province (China)

Wang

Xie

et al. 2023

Forests

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Aboveground wood carbon (AWC) stocks in forest ecosystems are mediated by biotic and abiotic variables. Understanding the internal regulatory mechanisms of forests is important for future forest management and global climate change mitigation. However, how these factors affect AWC in subtropical mixed forests remains poorly understood. Using a database from the National Forest Inventory (NFI) from China, we observed the effects of climate variables (temperature and precipitation), stand structure indices (stand density and DBH coefficient of variation and diversity), stand diversity indices (taxonomic diversity, functional diversity, and phylogenetic diversity), and stand functional indices on coniferous mixed forests (CMF), coniferous–broadleaf mixed forests (CBMF), and broadleaf mixed forests (BMF). Meanwhile, we examined the AWC based on a linear mixed model and a structural equation model for each mixed forest. We found that both stand structure and stand diversity can affect the AWC through their indirect effects on the stand function, aligning with the niche complementarity effect. Stand age is an important factor affecting AWC because it interacts with stand structure and stand diversity. Our study highlights that AWC is dependent on the regulation of stand age and structure, which can be crucial for boosting high carbon stocks in subtropical forests.

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Predicting Vegetation Carbon Density Distribution in different Terrains in Subtropical Forests in China

Cited by 4 publications

References 62 publications

Research on the mechanism of plant root protection for soil slope stability

Research on the mechanism of plant root protection for soil slope stability

The Impact of Climate Change on China’s Forestry Efficiency and Total Factor Productivity Change

Interaction Effect of Stand Age and Diversity on Aboveground Wood Carbon Accumulation in Subtropical Mixed Forests of the Zhejiang Province (China)

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