典型岩溶县域土壤有机碳的空间分异及主控因素

涂纯; 覃星铭; 李发东; 罗为群

doi:10.13870/j.cnki.stbcxb.2025.01.009

您当前的位置：

首页 >

文章列表页 >

典型岩溶县域土壤有机碳的空间分异及主控因素

更新时间：2025-03-14

- 典型岩溶县域土壤有机碳的空间分异及主控因素
- Study on the Spatial Variation of Soil Organic Carbon and Its Control Factors in a Typical Karst County
- 水土保持学报 2025年39卷第1期页码：178-188
- 作者机构：
  
  1. 中国地质科学院岩溶地质研究所,广西,桂林,541004
  2. 广西平果喀斯特生态系统国家野外科学观测研究站, 百色平果喀斯特生态系统广西野外科学观测研究站, 广西平果,531406
  3. 自然资源部、广西岩溶动力学重点实验室, 联合国教科文组织国际岩溶研究中心,广西,桂林,541004
  4. 南宁师范大学北部湾环境演变与资源利用教育部重点实验室,南宁,530001
  5. 中国科学院地理科学与资源研究所,北京,100101
  6. 中国科学院大学资源与环境学院,北京,100190
- 作者简介：
  
  [ "涂纯(1986—), 男, 博士, 助理研究员, 主要从事岩溶生态系统碳循环研究。E-mail: tuc.13b@igsnrr.ac.cn" ]
- 基金信息：
  
  国家重点研发计划课题(2022YFF1300702);广西自然科学基金项目(2023GXNSFAA026471);桂林市重大专项计划项目(20220102-1);中国地质调查局地质调查项目(DD20160324, DD20230453)
- DOI：10.13870/j.cnki.stbcxb.2025.01.009
  中图分类号： S154.3
- 纸质出版：2025
- 稿件说明：
移动端阅览
涂纯, 覃星铭, 李发东, 等. 典型岩溶县域土壤有机碳的空间分异及主控因素[J]. 水土保持学报, 2025,39(1):178-188.

TU Chun, QIN Xingming, LI Fadong, et al. Study on the Spatial Variation of Soil Organic Carbon and Its Control Factors in a Typical Karst County[J]. 2025, 39(1): 178-188.
涂纯, 覃星铭, 李发东, 等. 典型岩溶县域土壤有机碳的空间分异及主控因素[J]. 水土保持学报, 2025,39(1):178-188. DOI： 10.13870/j.cnki.stbcxb.2025.01.009.

TU Chun, QIN Xingming, LI Fadong, et al. Study on the Spatial Variation of Soil Organic Carbon and Its Control Factors in a Typical Karst County[J]. 2025, 39(1): 178-188. DOI： 10.13870/j.cnki.stbcxb.2025.01.009.

摘要

目的探究岩溶与非岩溶区土壤有机碳(SOC)的空间分异及其主控因素差异。方法以滇东南典型岩溶县域云南省文山市为例，采用网格采样法，调查研究文山市表层(0~20 cm)和深层(0~200 cm)土壤SOC质量分数和空间差异，并运用半变异函数和地理探测器分析外部环境要素对文山市SOC空间分异的影响。结果文山市表层和深层土壤SOC质量分数平均值分别为17.80、5.18 g/kg，总储量为3 770.89×104 t，其中，表层土SOC呈西部高、中北部低的分布格局，深层土SOC呈中西部高、东北部低的分布格局。在非岩溶区，表层和深层土壤SOC质量分数分别为20.88、6.12 g/kg，比岩溶区高27.94%和32.75%(p＜0.01)。半变异函数模型显示，SOC块金效应值为14.62%~59.93%，表明结构性影响因素主导文山市SOC的空间分异。地理探测器分析表明，气温和海拔是影响岩溶区表层土SOC的主控因素；随着温度降低、海拔升高，文山市SOC质量分数呈增加趋势；而岩溶区海拔较低，石漠化严重和植被生长相对较差，SOC质量分数总体低于非岩溶区。在深层土，降水是影响岩溶区SOC的主控因素，其产生的淋溶作用可能使溶解性钙与有机质结合形成腐殖酸钙，促进深层土SOC累积；地层年代在非岩溶区起主导作用，二叠系玄武岩母质发育的土壤可能具有较高的土壤黏粒和大团聚体质量分数，有助于维持深层土壤SOC的物理保护和稳定。结论研究结果将为西南岩溶地区SOC的精准评估和土壤碳库调控提供参考。

Abstract

ObjectiveExploring the spatial variability of soil organic carbon (SOC) and the differences in its main controlling factors between karst and non-karst areas.MethodsTaking Wenshan County

a typical karst county in southeast Yunnan Province

as an example

a grid sampling method was employed to conduct the spatial differences in SOC content and storage in top soil (0—20 cm) and deep soil (0—200 cm). Furthermore

we used the semi-variogram function and geographical detector to analyze the impact of external environmental factors on the spatial differentiation of SOC.ResultsThe average SOC content in the top soil and deep soil was 17.80 and 5.18 g/kg

respectively

with a total storage of 3 770.89×104 t. The distribution pattern revealed higher SOC content in the topsoil of the western region and lower SOC content in the central and northern regions

while the deep soil exhibited higher SOC content in the central and western regions and lower SOC content in the northeastern region in Wenshan County. In non-karst areas

the SOC content in the topsoil and deep soil was 20.88 and 6.12 g/kg

respectively

which was 27.94% and 32.75% higher (p < 0.01) than that in karst areas. The semi-variogram model showed that the nugget effect value of SOC ranged from 14.62% to 59.93%

indicating that structural factors dominate the spatial differentiation of SOC in Wenshan County. According to the analysis of the geographical detector

temperature and altitude were the main controlling factors affecting SOC in the top soil layer in karst areas. As the temperature decreased and the altitude increased

the SOC content in Wenshan County showed an increasing trend. However

the SOC content in karst areas was generally lower than that in non-karst areas due to their lower altitudes

severe rocky desertification

and relatively poor vegetation growth. For the deep soil

precipitation was the main controlling factor affecting SOC in karst areas. The leaching effect caused by precipitation might combine dissolved calcium with organic matter to form humic acid calcium

promoting the accumulation of SOC in deep soil. In non-karst areas

stratigraphic chronology played a leading role. The soil developed from Permian basalt parent material may have higher soil clay and macro-aggregate contents

which helps to maintain the physical protection and stability of SOC in deep soil.ConclusionThis study will provide a reference for precise assessment of SOC and the regulation of soil carbon pools in southwestern karst region.

关键词

Keywords

references

SCHIMEL D S. Terrestrial ecosystems and the carbon cycle[J]. Global Change Biology, 1995, 1(1): 77-91.

CAO J H, YUAN D X, ZHANG C, et al. Karst ecosystem constrained by geological conditions in southwest China[J]. Earth and Environment, 2004, 32(1): 1-8. 曹建华, 袁道先, 章程, 等. 受地质条件制约的中国西南岩溶生态系统[J]. 地球与环境, 2004, 32(1): 1-8.

ZHANG X B, WANG S J, CAO J H, et al. Characteristics of water loss and soil erosion and some scientific problems on karst rocky desertification in Southwest China karst area[J]. Carsologica Sinica, 2010, 29(3): 274-279. 张信宝, 王世杰, 曹建华, 等. 西南喀斯特山地水土流失特点及有关石漠化的几个科学问题[J]. 中国岩溶, 2010, 29(3): 274-279.

ZHONG C, LI X J, HE Y Y, et al. Spatial variation of soil organic matter and its influencing factors in Guangxi, China[J]. Scientia Geographica Sinica, 2020, 40(3): 478-485. 钟聪, 李小洁, 何园燕, 等. 广西土壤有机质空间变异特征及其影响因素研究[J]. 地理科学, 2020, 40(3): 478-485.

ZHANG Z M, ZHOU Y C, TIAN X, et al. Study on spatial heterogeneity and reserve estimation of soil organic carbon in a small karst Catchment[J]. Acta Ecologica Sinica, 2017, 37(22): 7647-7659. 张珍明, 周运超, 田潇, 等. 喀斯特小流域土壤有机碳空间异质性及储量估算方法[J]. 生态学报, 2017, 37(22): 7647-7659.

HUANG X F, ZHOU Y C, ZHANG Z M. Distribution characteristics of soil organic carbon under different land uses in a karst rocky desertification area[J]. Journal of Soil and Water Conservation, 2017, 31(5): 215-221. 黄先飞, 周运超, 张珍明. 喀斯特石漠化区不同土地利用方式下土壤有机碳分布特征[J]. 水土保持学报, 2017, 31(5): 215-221.

ZHANG S L, SHENG M Y, WANG L J, et al. Effects of long term vegetation restorations on soil organic carbon fractions in the karst rocky desertification ecosystem, Southwest China[J]. Acta Ecologica Sinica, 2023, 43(20): 8476-8492. 张穗粒, 盛茂银, 王霖娇, 等. 西南喀斯特长期植被修复对土壤有机碳组分的影响[J]. 生态学报, 2023, 43(20): 8476-8492.

QIN Z L, YANG X M, SONG Z L, et al. Effects of parent materials and land uses on soil organic carbon fractions[J]. Chinese Journal of Soil Science, 2020, 51(3): 621-629. 覃智莲, 杨孝民, 宋照亮, 等. 成土母质和土地利用方式对土壤有机碳化学组成的影响[J]. 土壤通报, 2020, 51(3): 621-629.

XIAO W, SU Y R, LIANG S C, et al. Organic carbon mineralization in deep soil layers in typical karst region of Guangxi, South China and related affecting factors[J]. Chinese Journal of Ecology, 2012, 31(4): 981-986. 肖伟, 苏以荣, 梁士楚, 等. 广西典型喀斯特地区深层土壤有机碳矿化及其影响因素[J]. 生态学杂志, 2012, 31(4): 981-986.

WANG X F, HUANG X F, HU J W, et al. Relationship among soil organic carbon and small environment and lithology in the rocky desertification process in different karst landforms[J]. Journal of Soil and Water Conservation, 2020, 34(4): 295-303. 王兴富, 黄先飞, 胡继伟, 等. 喀斯特石漠化过程中小生境及岩性的演替对土壤有机碳的影响[J]. 水土保持学报, 2020, 34(4): 295-303.

HUANG X F, ZHANG Z M, ZHOU Y C, et al. Characteristics of soil organic carbon under different karst landforms[J]. Carbonates and Evaporites, 2021, 36(3): e40.

FAN F D, WANG K L, XIONG Y, et al. Assessment and spatial distribution of water and soil loss in karst regions, southwest China[J]. Acta Ecologica Sinica, 2011, 31(21): 6353-6362. 凡非得, 王克林, 熊鹰, 等. 西南喀斯特区域水土流失敏感性评价及其空间分异特征[J]. 生态学报, 2011, 31(21): 6353-6362.

Ministry of Land and Resources, People's Republic of China. Specification of multi-purpose regional geochemical survey: DZ/T 0258—2014[S]. Beijing: Standards Press of China, 2015. 中华人民共和国国土资源部. 多目标区域地球化学调查规范: DZ/T 0258—2014[S]. 北京: 中国标准出版社, 2015.

WANG J F, XU C D. Geodetector: Principle and prospective[J]. Acta Geographica Sinica, 2017, 72(1): 116-134. 王劲峰, 徐成东. 地理探测器: 原理与展望[J]. 地理学报, 2017, 72(1): 116-134.

CHEN H S, ZHANG W, WANG K L, et al. Soil organic carbon and total nitrogen as affected by land use types in karst and non-karst areas of northwest Guangxi, China[J]. Journal of the Science of Food and Agriculture, 2012, 92(5): 1086-1093.

HUANG K W. Study on spatial variability and main controlling factors of soil organic carbon in Guizhou mountainous area[D]. Guiyang: Guizhou Normal University, 2023. 黄凯文. 贵州山地土壤有机碳空间变异性及主控因素研究[D]. 贵阳: 贵州师范大学, 2023.

ZHU X C, MA M G, TATENO R, et al. Effects of vegetation restoration on soil carbon dynamics in Karst and non-karst regions in Southwest China: A synthesis of multi-source data[J]. Plant and Soil, 2022, 475(1): 45-59.

LIU F, WANG S J, LIU Y S, et al. Changes of soil quality in the process of karst rocky desertification and evaluation of impact on ecological environment[J]. Acta Ecologica Sinica, 2005, 25(3): 639-644. 刘方, 王世杰, 刘元生, 等. 喀斯特石漠化过程土壤质量变化及生态环境影响评价[J]. 生态学报, 2005, 25(3): 639-644.

WANG X Y, FENG Y H, LI Y, et al. Spatial variability of soil physiochemical properties and their autocorrelations at village-region in karst mountainous area, Guizhou Province[J]. Acta Ecologica Sinica, 2015, 35(9): 2926-2936. 王小艳, 冯跃华, 李云, 等. 黔中喀斯特山区村域稻田土壤理化特性的空间变异特征及空间自相关性[J]. 生态学报, 2015, 35(9): 2926-2936.

LI X L, CHEN X M, ZHOU L C, et al. Soil organic carbon and nitrogen variability in the process of rocky desertification in karst region, Guizhou Province[J]. Journal of Nanjing Agricultural University, 2010, 33(4): 75-80. 李孝良, 陈效民, 周炼川, 等. 贵州省喀斯特地区石漠化土壤有机碳和全氮变异特征[J]. 南京农业大学学报, 2010, 33(4): 75-80.

SHANG B, ZOU Y, XU Y M, et al. Relationship between SOM contents of tobacco fields and elevation and parent materials in central region of Guizhou Province[J]. Soils, 2014, 46(3): 446-451. 尚斌, 邹焱, 徐宜民, 等. 贵州中部山区植烟土壤有机质含量与海拔和成土母质之间的关系[J]. 土壤, 2014, 46(3): 446-451.

BAO L Y, LI Y, ZHANG F L, et al. Spatial distribution, influencing factors and contribution to carbon emission reduction of topsoil organic carbon in Chongqing, China[J]. Geology in China, 2023, Doi: 10.12029/gc20230505002. 鲍丽然, 李瑜, 张风雷, 等. 重庆市表层土壤有机碳空间分布、影响因素及对碳减排的贡献[J]. 中国地质, 2023, Doi: 10.12029/gc20230505002.

WANG S J, LI Y B, LI R L. Karst rocky desertification: formation background evolution and comprehensive taming[J]. Quaternary Sciences, 2003, 23(6): 657-666. 王世杰, 李阳兵, 李瑞玲. 喀斯特石漠化的形成背景、演化与治理[J]. 第四纪研究, 2003, 23(6): 657-666.

YANG H, LIANG Y, XU J M, et al. Research progress of the relationship between soil calcium and soil organic carbon in karst area[J]. Guangxi Sciences, 2018, 25(5): 505-514. 杨慧, 梁影, 徐觉明, 等. 岩溶区钙与土壤有机碳关系的研究进展[J]. 广西科学, 2018, 25(5): 505-514.

MAO X L, QIU Z T, ZHANG S, et al. Response of aggregate distribution to input straw and their linkages to organic carbon mineralization in soils developed from five different parent materials[J]. Environmental Science, 2020, 41(6): 2842-2851. 毛霞丽, 邱志腾, 张爽, 等. 不同母质发育土壤团聚体分布对外源输入秸秆的响应及其与有机碳矿化的关系[J]. 环境科学, 2020, 41(6): 2842-2851.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

天山北坡土壤水分时空变化及驱动力分析

中国干旱半干旱区1990-2020年土壤水蚀时空变化及动态驱动力

基于CSLE-TLSD耦合模型的近40年洞庭湖流域土壤侵蚀时空分异及归因分析

基于InVEST模型的青弋江流域土壤侵蚀与影响因素研究

重庆市土地利用变化特征及生态敏感性评价