Biomass and carbon storage in an age-sequence of Cyclobalanopsis glauca plantations in southwest China

2014 ◽  
Vol 73 ◽  
pp. 184-191 ◽  
Author(s):  
Hao Zhang ◽  
Tongqing Song ◽  
Kelin Wang ◽  
Hu Du ◽  
Yuemin Yue ◽  
...  
Keyword(s):  
Carbon Storage ◽  
Southwest China ◽  
Age Sequence ◽  
Cyclobalanopsis Glauca

scholarly journals Biomass and carbon storage in an age-sequence of Acacia mangium plantation forests in Southeastern region, Vietnam

2020 ◽  
Vol 29 (2) ◽  
pp. e009
Author(s):  
Cuong Levan ◽  
Hung Buimanh ◽  
Bolanle-Ojo Oluwasanmi Tope ◽  
Xiaoniu Xu ◽  
Thanh Nguyenminh ◽  
...  
Keyword(s):  
Carbon Storage ◽  
Acacia Mangium ◽  
Understory Vegetation ◽  
Stand Age ◽  
Tree Biomass ◽  
Organic C ◽  
Soil C ◽  
C Storage ◽  
Age Sequence ◽  
Southeastern Region

Aim of the study: The major objective of this study was to estimate the biomass increment and carbon (C) storage of the main ecosystem components in an age-sequence of three Acacia mangium plantation stands.Area of study: Chang Riec Historical - Cultural Forest, Southeastern region, Vietnam.Material and methods: In order to assess the biomass of different tree components, 36 trees with diameter at breast height ranging from 13.38 to 22.87 cm were harvested from the different aged stands. Biomasses of understory (shrubs and herbs), and litter were also determined. Carbon storage in the trees and understory biomass, litter, and mineral soil (0-50 cm) were determined by analyzing the C content of each compartment.Main results: The biomass in trees, understory vegetation, litter, and ecosystem increased with stand age. Soil C represented 61.99% of the total, aboveground tree biomass C made up 26.73%, belowground tree biomass C accounted for 7.01%, and litter comprised 2.96%, whereas only a small amount (1.30%) was associated with understory vegetation. The average C content of total tree (47.97%) was higher than those of understory and litter. Soil organic C stock in the top 50 cm depth in 4-, 7- and 11-year-old stands of A. mangium were 86.86, 126.88 and 140.94 Mg. C ha-1 respectively. Soil C concentration decreased continually with increasing soil depth. Total C storage of three planted forests ranged from 131.36 to 255.86 Mg. C ha-1, of which 56.09 - 67.61% of C storage was in the soil and 26.88 - 40.40% in the trees.Research highlights: These results suggest that A. mangium is a promising afforestation tree species with fast growing, high biomass accumulation and high C sequestration potential.Keywords: Acacia mangium plantations; Biomass; Ecosystem carbon storage; Age-sequence; Vietnam.

scholarly journals Stand Structure and Abiotic Factors Modulate Karst Forest Biomass in Southwest China

Forests ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 443 ◽  
Author(s):  
Lu Liu ◽  
Fuping Zeng ◽  
Tongqing Song ◽  
Kelin Wang ◽  
Hu Du
Keyword(s):  
Carbon Storage ◽  
Structural Equation ◽  
Southwest China ◽  
Structural Equation Models ◽  
Abiotic Factors ◽  
Forest Biomass ◽  
Tree Density ◽  
Forest Carbon ◽  
Driving Factors ◽  
Spatial Factors

Understanding the driving factors of forest biomass are critical for further understanding the forest carbon cycle and carbon storage management in karst forests. This study aimed to investigate the distribution of forest aboveground biomass (AGB) and the effects of stand structural and abiotic factors on AGB in karst forests in Southwest China. We established a 25 ha plot and sampled all trees (≥1 cm diameter) in a subtropical mixed evergreen–deciduous broadleaf forest. We mapped the forest biomass distribution and applied a variation of partitioning analysis to examine the topographic, stand structural, and spatial factors. Furthermore, we used structural equation models (SEM) to test how these variables directly and/or indirectly affect AGB. The average AGB of the 25 ha plot was 73.92 Mg/ha, but that varied from 3.22 to 198.11 Mg/ha in the 20 m × 20 m quadrats. Topographic, stand structural, and spatial factors together explained 67.7% of the variation in AGB distribution. The structural variables (including tree density and the diameter at breast height (DBH) diversity) and topographic factors (including elevation, VDCN (vertical distance to channel network), convexity, and slope) were the most crucial driving factors of AGB in the karst forests. Structural equation models indicated that elevation, tree density, and DBH diversity directly affected AGB, and elevation also indirectly affected AGB through tree density and DBH diversity. Meanwhile, AGB was indirectly influenced by VDCN, convexity, and slope. The evaluation of stand structural and abiotic drivers of AGB provides better insights into the mechanisms that play a role in carbon storage in karst forests, which may assist in improving forest carbon management.

Carbon storage and its controlling factors under different vegetation types in depressions between karst hills, southwest China

2015 ◽  
Vol 35 (14) ◽  
Author(s):  
杜虎 DU Hu ◽  
宋同清 SONG Tongqing ◽  
曾馥平 ZENG Fuping ◽  
王克林 WANG Kelin ◽  
彭晚霞 PENG Wanxia ◽  
...  
Keyword(s):  
Carbon Storage ◽  
Southwest China ◽  
Controlling Factors ◽  
Vegetation Types

Numerical classification and ordination of Cyclobalanopsis glauca communities in karst hills of Guilin, Southwest China

2019 ◽  
Vol 39 (22) ◽  
Author(s):  
刘润红 LIU Runhong ◽  
涂洪润 TU Hongrun ◽  
李娇凤 LI Jiaofeng ◽  
梁士楚 LIANG Shichu ◽  
姜勇 JIANG Yong ◽  
...  
Keyword(s):  
Southwest China ◽  
Numerical Classification ◽  
Cyclobalanopsis Glauca

Scale variation and correlation of plant functional traits in the dominant Cyclobalanopsis glauca community in the karst area of Guilin city, Southwest China

2019 ◽  
Vol 39 (15) ◽  
Author(s):  
李月娟 LI Yuejuan ◽  
李娇凤 LI Jiaofeng ◽  
常斌 CHANG Bin ◽  
姜勇 JIANG Yong ◽  
梁士楚 LIANG Shichu
Keyword(s):  
Functional Traits ◽  
Southwest China ◽  
Plant Functional Traits ◽  
Karst Area ◽  
Cyclobalanopsis Glauca ◽  
Scale Variation

scholarly journals Investigation on carbon sequestration capacity of typical subtropical evergreen broad-leaved forest in Wuyi Mountain National Nature Reserve

2021 ◽  
Vol 248 ◽  
pp. 02044
Author(s):  
Qiugen Zhang ◽  
Hongli Wang ◽  
Yuan Ding ◽  
Jian Li
Keyword(s):  
Organic Carbon ◽  
Carbon Content ◽  
Carbon Storage ◽  
Nature Reserve ◽  
Organic Carbon Content ◽  
Carbon Density ◽  
Schima Superba ◽  
National Nature Reserve ◽  
Vegetation Layer ◽  
Cyclobalanopsis Glauca

Three typical substropical evergreen broad-leaved forests (Castanopsis eyrei, Schima superba and Cyclobalanopsis glauca) in Wuyi Mountain National Nature Reserve of Jiangxi Province were selected to investigate its carbon sequestration capacity. The biomass and soil bulk density of sample investigation were get by setting sample investigation, field quadrat sampling, indoor sample making, experimental analysis testing, data statistics and analysis. The organic carbon content of vegetation layer (arbor layer, shrub layer and herbaceous layer, litter layer) and soil layer (0-10cm, 10-20cm, 20-30cm, 30-50cm and 50-100cm) were also get. The carbon density and carbon storage of subtropical evergreen broad-leaved forests vegetation and soil were estimated which including Castanopsis eyrei, Schima superba and Cyclobalanopsis glauca. The investigation results had shown that: The average organic carbon content of each vegetation layer in the investigation plot (400 m2) of Wuyi Mountain National Nature Reserve was arbor layer (54.07%)> shrub layer (52.8%)> herbaceous layer (47.5%), in which the average organic carbon content of the three subtropical evergreen broad-leaved forests in the arbor layer was close 52.97% to 54.87% and the total average content was 54.07%. The average carbon density of the forest vegetation layer was 178.3587t/hm2, the average carbon density of the vegetation layer was arbor layer (176.0273t/hm2)> shrub layer (1.3043t/hm2)> litter layer (0.8144t/hm2)> herbaceous layer (0.2127t/hm2); the average carbon density of each forest species was Castanopsis eyrei (213.5141t/hm2)> Schima superba (168.9069t/hm2)> Cyclobalanopsis glauca (152.6551t/hm2). Investigation sample of subtropical evergreen broad-leaved forest (400 m) in Wuyi Mountain National Nature Reserve, Jiangxi Province2 The average soil bulk density of each soil layer cm 0-100 g/cm was 0.868-1.816 g/cm3 both soil organic carbon content and soil carbon density decreased with the increase of soil depth. The average organic carbon content of each soil layer was between 3.75% and 12.48%, and the average soil carbon density was between 62.85t/hm2 and 146.14t/hm2. The average total carbon density of the soil in the investigated sample plots was 754.77t/hm2, of which the average soil carbon density in investigation sample plots in Castanopsis eyrei, Schima superba and Cyclobalanopsis glauca was 911.49t/hm2, 762.56t/hm2 and 543.22t/hm2 respectively. The average carbon storage of the investigation sample plot (400m2) in Jiangxi Wuyi Mountain National Nature Reserve were Castanopsis eyrei forest (45.0002t) >Cyclobalanopsis glauca forest (36.6087t) > Schima superba forest (28.4850t), the average soil carbon storage(30.1908t) was 4.23 times the average carbon storage(7.1314t).

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