PDF Download

[1]LIAO Jiaojiao,DOU Yanxing,AN Shaoshan.Relationship Between Vegetation Community Diversity and Soil Organic Carbon Density on the Loess Plateau[J].Research of Soil and Water Conservation,2022,29(04):75-82.

Copy

Relationship Between Vegetation Community Diversity and Soil Organic Carbon Density on the Loess Plateau

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 29 Number of periods: 2022 04 Page number: 75-82 Column: Public date: 2022-06-20

Title:: Relationship Between Vegetation Community Diversity and Soil Organic Carbon Density on the Loess Plateau

Author(s):: LIAO Jiaojiao¹, DOU Yanxing², AN Shaoshan¹; (1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi 712100, China; 2 College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China)

Keywords:: Loess Plateau; vegetation type; community diversity; soil organic carbon density

CLC:: S153.16

DOI:: -

Abstract:: In order to further explore the effects of vegetation community diversity on the vertical distribution of soil organic carbon on the Loess Plateau, five main vegetation types(Stipa bungeana, Sophora viciifolia, Artemisia sacrorum, Caragana korshinskii, and Robinia pseudoacacia)in Zhifanggou watershed were selected to investigate the vegetation diversity, and soil organic carbon content, density in 0—100 cm soil layer and related soil environmental factors were measured. The results showed that:(1)Shannon-Wiener diversity index, Margalef richness index and Mclntosh evenness index of different vegetation types decreased in the order: Stipa bungeana>Sophora viciifolia>Artemisia sacrorum>Caragana korshinskii>Robinia pseudoacacia; there was no significant difference between Stipa bungeana and Sophora viciifolia(p<0.05), which was significantly higher than that of other plant communities(p>0.05), but there was no significant difference between Caragana korshinskii and Robinia pseudoacacia communities(p<0.05), which was significantly lower than that of other plant communities(p>0.05); the Simpson dominance index of different plant communities showed an opposite trend, and followed the order: Stipa bungeana<Sophora viciifolia<Artemisia sacrorum<Caragana korshinskii<Robinia pseudoacacia; (2)different plant communities of soil total nitrogen, available phosphorus, ammonium nitrogen, nitrate nitrogen and microbial biomass carbon and microbial biomass nitrogen were consistent with the basic pattern, these indices in Stipa bungeana and Sophora viciifolia communities were greater than those of the rest of the communities, and soil nutrient contents of Caragana korshinskii and Robinia pseudoacacia were lower than other plant communities, while soil pH showed the opposite change tendency;(3)the soil organic carbon density was the highest in the 0—20 cm layer, and gradually decreased with the increase of soil depth; the soil organic carbon density in the 80—100 cm layer was significantly lower than that in other soil layers(p<0.05), and the soil organic carbon density in the same soil layer was generally higher in Stipa bungeana and Sophora viciifolia than other communities;(4)correlation analysis showed that Margalef richness index, Shannon-Wiener diversity index, Cody index and Sorenson index of coniferous mixed forest, coniferous and broad-leaved mixed forest and deciduous forest had significant or extremely significant positive correlation with soil organic carbon and organic carbon density; from the absolute value of correlation coefficient, the correlation coefficient with organic carbon was higher than that of organic carbon density. The results of redundancy analysis showed that soil pH value and microbial biomass carbon content were the main driving factors of vegetation diversity and soil organic carbon density. Two-factor analysis showed that vegetation type and soil depth had significant effects on soil organic carbon content and density(p<0.05).

References:: [1] Liang B C, Vanden Bygaart A J, MacDonald J D, et al. Revisiting no-till's impact on soil organic carbon storage in Canada[J]. Soil and Tillage Research, 2020,198:104529.
[2] Guenet B, Gabrielle B, Chenu C, et al. Can N₂O emissions offset the benefits from soil organic carbon storage?[J]. Global Change Biology, 2021,27(2):237-256.
[3] Berhane M, Xu M, Liang Z, et al. Effects of long-term straw return on soil organic carbon storage and sequestration rate in North China upland crops: A meta-analysis[J]. Global Change Biology, 2020,26(4):2686-2701.
[4] Lehmann J, Hansel C M, Kaiser C, et al. Persistence of soil organic carbon caused by functional complexity[J]. Nature Geoscience, 2020,13(8):529-534.
[5] Yang Y, Dou Y, An S, et al. Abiotic and biotic factors modulate plant biomass and root/shoot(R/S)ratios in grassland on the Loess Plateau, China[J]. Science of the Total Environment, 2018,636:621-631.
[6] Chen J, Xiao W, Zheng C, et al. Nitrogen addition has contrasting effects on particulate and mineral-associated soil organic carbon in a subtropical forest[J]. Soil Biology and Biochemistry, 2020,142:107708.
[7] Hobley E, Wilson B, Wilkie A, et al. Drivers of soil organic carbon storage and vertical distribution in Eastern Australia[J]. Plant and Soil, 2015,390(1):111-127.
[8] Yang Y, Dou Y, An S. Testing association between soil bacterial diversity and soil carbon storage on the Loess Plateau[J]. Science of the Total Environment, 2018,626:48-58.
[9] Yu H, Zha T, Zhang X, et al. Vertical distribution and influencing factors of soil organic carbon in the Loess Plateau, China[J]. Science of the Total Environment, 2019,693:133632.
[10] 安韶山,张玄,张扬,等.黄土丘陵区植被恢复中不同粒级土壤团聚体有机碳分布特征[J].水土保持学报,2007,21(6):109-113.
[11] 刘梦云,安韶山,常庆瑞.宁南山区不同土地利用方式土壤有机碳特征研究[J].水土保持研究,2005,12(3):47-49.
[12] 李裕元,邵明安,郑纪勇,等.黄土高原北部草地的恢复与重建对土壤有机碳的影响[J].生态学报,2007,27(6):2279-2287.
[13] 张宏,黄懿梅,祁金花,等.温度和水分对黄土丘陵区3种典型土地利用方式下土壤释放CO₂潜力的影响[J].中国生态农业学报,2011,19(4):731-737.
[14] 孟国欣,查同刚,张晓霞,等.植被类型和地形对黄土区退耕地土壤有机碳垂直分布的影响[J].生态学杂志,2017,36(9):2447-2454.
[15] 徐香兰,张科利,徐宪立,等.黄土高原地区土壤有机碳估算及其分布规律分析[J].水土保持学报,2003,17(3):13-15.
[16] 薛志婧,侯晓瑞,程曼,等.黄土丘陵区小流域尺度上土壤有机碳空间异质性[J].水土保持学报,2011,25(3):160-163.
[17] 方精云,王襄平,沈泽昊,等.植物群落清查的主要内容,方法和技术规范[J].生物多样性,2009,17(6):533-548.
[18] 董扬红,曾全超,安韶山,等.黄土高原不同林型植被对土壤活性有机碳及腐殖质的影响[J].水土保持学报,2015,29(1):143-148.
[19] 李鑫,马瑞萍,安韶山,等.黄土高原不同植被带土壤团聚体有机碳和酶活性的粒径分布特征[J].应用生态学报,2015,26(8):2282-2290.
[20] 侯晓瑞,薛志婧,程曼,等.黄土丘陵区纸坊沟小流域土壤有机碳储量研究[J].水土保持通报,2012,32(2):21-25.
[21] 薛志婧,马露莎,安韶山,等.黄土丘陵区小流域尺度土壤有机碳密度及储量[J].生态学报,2015,35(9):12-19.
[22] Wang Y, Fu B, Lü Y, et al. Local-scale spatial variability of soil organic carbon and its stock in the hilly area of the Loess Plateau, China[J]. Quaternary Research, 2010,73(1):70-76.
[23] Zhang C, Liu G, Xue S, et al. Soil organic carbon and total nitrogen storage as affected by land use in a small watershed of the Loess Plateau, China[J]. European Journal of Soil Biology, 2013,54:16-24.
[24] Fu X, Shao M, Wei X, et al. Soil organic carbon and total nitrogen as affected by vegetation types in Northern Loess Plateau of China[J]. Geoderma, 2010,155(1/2):31-35.
[25] Xin Z, Qin Y, Yu X. Spatial variability in soil organic carbon and its influencing factors in a hilly watershed of the Loess Plateau, China[J]. Catena, 2016,137:660-669.

Similar References:

Memo

Last Update: 2022-06-20