城市化进程中绿地GRSP对土壤有机碳库的贡献及其影响因素

doi:10.13292/j.1000-4890.202604.003

生态学杂志 ›› 2026, Vol. 45 ›› Issue (4): 1069-1079.doi: 10.13292/j.1000-4890.202604.003

• ·城市生态系统保护与高质量发展专栏· • 上一篇下一篇

城市化进程中绿地GRSP对土壤有机碳库的贡献及其影响因素

邹庆娴^1,2,张佛熠^1,3,钟嘉琳^1,2,廖桂军^1,2,刘玮^1,2,王琼^1,2*

（¹江西农业大学林学院/园林与艺术学院，南昌 330045； ²亚热带森林资源培育江西省重点实验室，南昌 330045； ³云南大学生态与环境学院，昆明 650000）

出版日期:2026-04-10 发布日期:2026-04-09

Contribution of glomalin-related soil protein in urban greenspace to soil organic carbon storage and its influencing factors during urbanization.

ZOU Qingxian^1,2, ZHANG Foyi^1,3, ZHONG Jialin^1,2, LIAO Guijun^1,2, LIU Wei^1,2, WANG Qiong^1,2*

(¹College of Forestry/Landscape and Art, Jiangxi Agricultural University, Nanchang 330045, China; ²Jiangxi Key Laboratory of Subtropical Forest Resources Cultivation, Nanchang 330045, China; ³School of Ecology and Environmental Science, Yunnan University, Kunming 650000, China).

Online:2026-04-10 Published:2026-04-09

摘要/Abstract

摘要： 丛枝菌根真菌分泌的球囊霉素相关土壤蛋白（glomalin-related soil protein，GRSP）是土壤有机碳（SOC）的重要组成部分，是土壤碳汇变化的重要表征指标之一。在快速城市化过程中，GRSP是否能够增强土壤固碳及其影响机制尚不清楚。本研究选取南昌市建成区（505 km²）的184个绿地样地，通过不透水面面积比例来划分城市化强度，并分析城市化对SOC、GRSP及纯化GRSP的C（GRSP-C）等含量的影响及其与土壤理化性质、植被特征和景观格局的相关关系。结果表明：低城市化地区的GRSP和GRSP-C含量显著高于高城市化地区（19.35%和13.21%）（P<0.05）；从低城市化到高城市化区域，SOC从18.64 mg·g^-1下降到15.02 mg·g^-1，而GRSP-C对SOC的贡献率从3.89%减少到2.04%，城市化进程显著降低GRSP与GRSP-C对SOC的固持作用；冗余分析表明，土壤pH、土壤全钾、树木冠幅和绿地斑块总边界长度是城市化进程中影响GRSP固碳差异的主要环境因子；较高的土壤全钾不利于积累GRSP和GRSP-C；土壤pH与GRSP/SOC、GRSP-C对SOC的贡献率呈负相关，而较大的树木冠幅和斑块总边界长度则可以促进GRSP对SOC的贡献率。本研究系统探索了GRSP对SOC的固存作用，尽管这种作用会受到城市化过程影响，但其仍然是一种较新的助力城市绿地土壤碳中和的路径。

关键词: 球囊霉素相关土壤蛋白, 土壤有机碳, 城市化, 城市绿地

Abstract: Glomalin-related soil protein (GRSP) secreted by arbuscular mycorrhizal fungi is an important component of soil organic carbon (SOC) and one of the important indicators of changes in soil carbon sequestration. The ability of GRSP to enhance soil carbon sequestration and its influencing mechanisms during rapid urbanization remains unclear. We selected 184 greenspace plots from the built-up area in Nanchang (505 km²) and categorized urbanization intensity based on the proportion of impervious surface area to total area. We then analyzed the effects of urbanization intensity on the contents of SOC, GRSP, and purified GRSP-containing carbon (GRSP-C), as well as their correlations with soil physicochemical properties, vegetation characteristics, and landscape patterns. The results showed that GRSP and GRSP-C contents were significantly higher in lowly urbanized areas than in highly urbanized areas by 19.35% and 13.21%, respectively (P<0.05). From lowly to highly urbanized areas, SOC content decreased from 18.64 mg·g^-1 to 15.02 mg·g^-1, accompanied by a decline in the contribution rate of GRSP-C to SOC from 3.89% to 2.04%, indicating that urbanization significantly weakened the roles of GRSP and GRSP-C in SOC sequestration. The redundancy analysis revealed that soil pH, soil total potassium, tree canopy size, and the total boundary length of greenspace patches were the main factors affecting the changes in the GRSP-related carbon sequestration during urbanization. A high soil total potassium content was not conducive to the accumulation of GRSP and GRSP-C. Soil pH was negatively correlated with the GRSP/SOC ratio and the contribution rate of the GRSP-C content to SOC, while larger tree canopy sizes and total boundary length increased the contribution rate of GRSP to SOC. By systematically investigating the role of GRSP in SOC sequestration, this study confirms that GRSP is a relatively novel pathway for contributing to soil carbon neutrality in urban greenspaces, even though its role could be influenced by urbanization.

Key words: glomalin-related soil protein, soil organic carbon, urbanization, urban greenspace

邹庆娴, 张佛熠, 钟嘉琳, 廖桂军, 刘玮, 王琼. 城市化进程中绿地GRSP对土壤有机碳库的贡献及其影响因素[J]. 生态学杂志, 2026, 45(4): 1069-1079.

ZOU Qingxian, ZHANG Foyi, ZHONG Jialin, LIAO Guijun, LIU Wei, WANG Qiong. Contribution of glomalin-related soil protein in urban greenspace to soil organic carbon storage and its influencing factors during urbanization.[J]. Chinese Journal of Ecology, 2026, 45(4): 1069-1079.

[1]	彭超, 徐艳阳, 秦易, 张芸, 张扬, 吴婷, 毛瑢. 亚热带次生林土壤有机碳储量及其稳定性随演替阶段的变化趋势 [J]. 生态学杂志, 2026, 45(6): 1780-1788.
[2]	张煜坤, 陈懂懂, 李奇, 贺福全, 张莉, 潘思辰, 赵亮. 三江源不同植被类型土壤Hg的空间分布 [J]. 生态学杂志, 2026, 45(5): 1586-1594.
[3]	张未, 李婧妤, 杨杰, 卢静昭. 京津冀城市群城市化与生态系统服务时空分布变化的关系 [J]. 生态学杂志, 2026, 45(4): 1080-1089.
[4]	廖亦阳, 王霖, 许宏达, 李先德, 沈长华, 王佳娜, 吴春梅, 侯丽, 吴琪梦, 张永勋, 王维奇. 不同岩茶产区土壤有机碳与固碳微生物特征及其影响因子 [J]. 生态学杂志, 2026, 45(3): 714-723.
[5]	李文嘉, 王帆, 陈楚楠, 梅中奇, 石生伟. 青藏高原东北缘不同人工林土壤水分与固碳特征 [J]. 生态学杂志, 2026, 45(3): 767-776.
[6]	庄晓纯, 吴颢林, 刘茜, 温锐, 权擎, 张强, 沈勇. 城市森林鸟类多样性与功能组成沿干扰梯度的变化 [J]. 生态学杂志, 2026, 45(3): 941-951.
[7]	王玉崧, 赵实, 王玲, 孙梓淇, 杨会侠. 退耕还林对土壤有机碳含量、组分及化学结构的影响 [J]. 生态学杂志, 2026, 45(2): 617-626.
[8]	李向祎, 郑甜甜, 王星源, 周莺, 任梓旭, 鲍雪莲, 张阳, 梁超. 关于微生物残体来源碳转化过程和机制的思考 [J]. 生态学杂志, 2026, 45(2): 627-635.
[9]	则捍东, 陈雅慧, 陈雪初, 由文辉, 杨月, 张钊, 杨华蕾. 浙南北移红树林土壤有机碳库动态变化及其影响因子 [J]. 生态学杂志, 2026, 45(1): 40-48.
[10]	羊美秋, 邓丹婷, 孙延菲, 龙文兴. 热带次生林生态恢复过程中土壤真菌群落构建演变及其与土壤有机碳稳定性的关系 [J]. 生态学杂志, 2025, 44(9): 2907-2918.
[11]	胡聪月, 张亚茹, 韩村, 李培广, 韩广轩, 宋维民. 外源物添加量和土壤性质对黄河三角洲滨海湿地土壤激发效应的影响 [J]. 生态学杂志, 2025, 44(8): 2497-2505.
[12]	宋佼阳, 赵广兴, 丛孟菲, 张志浩, 曾凡江. 荒漠绿洲过渡带不同土地利用类型下土壤有机碳矿化特征及其对氮添加的响应 [J]. 生态学杂志, 2025, 44(8): 2506-2514.
[13]	李然, 王艳林, 王永杰, 邓泓. 上海市不同城市化水平区域森林土壤中汞形态特征 [J]. 生态学杂志, 2025, 44(5): 1551-1560.
[14]	于磊, 陆问, 宋佩鸿, 杨秋, 杨怀, 刘文杰, 栾军伟, 刘世荣. 海南岛橡胶林不同复合经营模式碳密度和固碳潜力 [J]. 生态学杂志, 2025, 44(4): 1097-1103.
[15]	陈锟, 郗敏, 陈飞潼, 刘书铭, 孔范龙, 姜志翔. 可降解和不可降解微塑料对滨海湿地土壤有机碳矿化的影响 [J]. 生态学杂志, 2025, 44(4): 1170-1180.

城市化进程中绿地GRSP对土壤有机碳库的贡献及其影响因素

Contribution of glomalin-related soil protein in urban greenspace to soil organic carbon storage and its influencing factors during urbanization.

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价