Soil Organic Matter Content and Its Relationship with pH and Bulk Density in Agricultural Areas of China

LI Dongchu; HUANG Jing; MA Changbao; XUE Yandong; GAO Jusheng; WANG Boren; ZHANG Yangzhu; LIU Kailou; HAN Tianfu; ZHANG Huimin

doi:10.13870/j.cnki.stbcxb.2020.06.035

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Soil Organic Matter Content and Its Relationship with pH and Bulk Density in Agricultural Areas of China

更新时间：2025-03-12

- Soil Organic Matter Content and Its Relationship with pH and Bulk Density in Agricultural Areas of China
- Vol. 34, Issue 6, Pages: 252-258(2020)
- 作者机构：
  
  1. 湖南农业大学资源环境学院,长沙,410128
  2. 中国农业科学院农业资源与农业区划研究所, 耕地培育技术国家工程实验室,北京,100081
  3. 农业农村部耕地质量监测保护中心,北京,100125
  4. 江西省红壤研究所, 国家红壤改良工程技术研究中心, 江西进贤,331717
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2020.06.035
  CLC： S153.6
- Published：2020
- 稿件说明：
移动端阅览
LI Dongchu, HUANG Jing, MA Changbao, et al. Soil Organic Matter Content and Its Relationship with pH and Bulk Density in Agricultural Areas of China[J]. 2020, 34(6): 252-258.
DOI：

LI Dongchu, HUANG Jing, MA Changbao, et al. Soil Organic Matter Content and Its Relationship with pH and Bulk Density in Agricultural Areas of China[J]. 2020, 34(6): 252-258. DOI： 10.13870/j.cnki.stbcxb.2020.06.035.

摘要

对我国农耕区土壤有机质区域变化及其与酸碱度和容重关系进行系统分析，为耕地地力提升和改善土壤结构提供支撑。基于国家级耕地长期定位监测点913个，统计分析全国及7大区域（东北NE、华北NC、西北NW、长江中游MYR、长三角YRD、华南SC、西南SW）耕层土壤有机质含量、酸碱度及容重变化特征。结果表明，全国农耕区耕层土壤有机质含量平均值为22.4~24.8 g/kg。其中有机质含量中等偏低的监测点位占比达72.5%。不同区域耕层土壤有机质含量差异显著（p<0.05），MYR耕层土壤有机质含量显著高于其他6个区域。全国农耕区耕层土壤pH和容重平均分别为（6.90±1.20），（1.30±0.15） g/cm3。不同土壤利用方式对土壤有机质、酸碱度及容重产生影响。水田耕层土壤有机质含量显著高于旱地，旱地耕层土壤pH和容重则显著高于水田。亚当斯方程和指数函数分别推荐拟合土壤容重对有机质含量响应关系（R2=0.09，RMSE=0.17，n=759），以及土壤pH对土壤有机质含量响应（R2=0.16，RMSE=1.24，n=886）。全国农耕区耕层土壤有机质含量总体中等偏低，呈现出东南向西北依次降低趋势。土壤pH及容重与土壤有机质呈现显著的负相关关系。亚当斯模型及指数方程能较好地拟合土壤容重及pH对有机质的响应关系，可用于非线性插值法补充土壤容重及pH缺失值。

Abstract

Analysis of the regional changes of soil organic matter (SOM) and its relationship with pH and bulk density (BD) in agricultural areas of China were conducted. That would provide support for improvement of cultivated land fertility and soil structure. The characteristic of SOM changes were analyzed based on 913 national long-term monitoring sites which were carried out in 7 regions (Northeast

NE; North China

NC; Northwest

NW; Middle of Yangtze River

MYR; Yangtze River Delta

YRD; South China

SC; and Southwest

SW). Soil pH and bulk density were also evaluated. The results showed that the averaged SOM content in the agricultural cultivation areas were between 22.4 and 24.8 g/kg.

and 72.5% of total monitoring sites were with SOM content grade <30.0 g/kg (grade 3~6). There were significantly difference of SOM content in soil cultivated layer among regions (p<0.05). Soil organic matter content in MYR was significantly higher than that in other regions. Soil pH and BD in the agricultural cultivation areas were (6.90±1.20)

and (1.30±0.15) g/cm3. Soil utilization patterns affected SOM content

and BD. The SOM content in paddy fields were significantly higher than that in upland. The pH and BD in upland were significantly higher than that in paddy fields. The Adams equation and exponential equation were recommended to fit response relationship between BD and SOM (R2=0.09

RMSE=0.17

n=759)

pH and SOM (R2=0.16

RMSE=1.24

n=886).The SOM content was generally low in plowed layer in the agricultural areas

and that showing a decreasing trend from southeast to northwest of China. Soil pH and BD showed significant negative correlation with SOM. The Adams and exponential equation could well fit the responses relationship between soil BD and pH to SOM

and that could be used for nonlinear interpolation to supplement BD and pH missing values.

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references

顾成军,史学正,于东升,等.省域土壤有机碳空间分布的主控因子:土壤类型与土地利用比较[J].土壤学报,2013,50(3):425-432.

史利江,郑丽波,梅雪英,等.上海市不同土地利用方式下的土壤碳氮特征[J].应用生态学报,2010,21(9):2279-2287.

姜赛平,张认连,张维理,等.近30年海南岛土壤有机质时空变异特征及成因分析[J].中国农业科学,2019,52(6):1032-1044.

徐明岗,张文菊,黄绍敏.中国土壤肥力演变[M].北京:中国农业科学技术出版社,2015.

Zhang W J, Xu M G, Wang X J, et al. Effects of organic amendments on soil carbon sequestration in paddy fields of subtropical China[J].Journal of Soils and Sediments,2012,12:457-470.

Qaswar M, Huang J, Ahmed W, et al. Long-term green manure rotations improve soil biochemical properties, yield sustainability and nutrient balances in acidic paddy soil under a rice-based cropping system[J].Agronomy,2019,9:780.https://doi.org/10.3390/agronomy9120780.

Zheng L, Wu W L, Wei Y P, et al. Effects of straw return and regional factors on spatio-temporal variability of soil organic matter in a high-yielding area of northern China[J]. Soil and Tillage Research,2015,145:78-86.

黄耀,孙文娟.近20年来中国大陆农田表土有机碳含量的变化趋势[J].科学通报,2006,51(7):750-763.

杨帆,徐洋,崔勇,等.近30年中国农田耕层土壤有机质含量变化[J].土壤学报,2017,54(5):1047-1056.

Pan G X, Li L Q, Wu L S, et al. Storage and sequestration potential of topsoil organic carbon in China's paddy soils[J].Global Change Biology,2004,10(1):79-92.

连纲,郭旭东,傅伯杰,等.黄土丘陵沟壑区县域土壤有机质空间分布特征及预测[J].地理科学进展,2006,25(2):112-122.

Ou Y, Alain N R, Wang L X, et al. Spatio-temporal patterns of soil organic carbon and pH in relation to environmental factors:A case study of the black soil region of Northeastern China[J].Agriculture, Ecosystems and Environment,2017,245:22-31.

戴万宏,黄耀,武丽,等.中国地带性土壤有机质含量与酸碱度的关系[J].土壤学报,2009,46(5):851-860.

Benites V M, Machado P L O A, Fidalgo E C C, et al. Pedotransfer functions for estimating soil bulk density from existing soil survey reports in Brazil[J].Geoderma,2007,139:90-97.

Adams W A. The effect of organic matter on the bulk and true densities of some uncultivated podzolic soils[J].European Journal of Soil Science,1973,24:10-17.

Shi S W, Han P F. Estimating the soil carbon sequestration potential of China's Grain for Green Project[J].Global Biogeochemical Cycles,2014,28(11):1279-1294.

Sequeira C H, Wills S A, Seybold C A, et al. Predicting soil bulk density for incomplete databases[J].Geoderma,2014,213:64-73.

Chen Y, Huang Y, Sun W J. Using organic matter and pH to estimate the bulk density of afforested/reforested soils in Northwest and Northeast China[J].Pedosphere,2017,27:890-900.

中华人民共和国国家统计局.2018年中国统计年鉴[M].北京:中国统计出版社,2019.

韩天富,马常宝,黄晶,等.基于Meta分析中国水稻产量对施肥的响应特征[J].中国农业科学,2019,52(11):1918-1929.

全国农业区划委员会.中国综合农业区划[M].北京:农业出版社,1991.

全国农业技术推广服务中心.土壤分析技术规范[M].北京:中国农业科学技术出版社,2006.

潘根兴,赵其国.我国农田土壤碳库演变研究:全球变化和国家粮食安全[J].地球科学进展,2005,20(4):384-393.

白由路.国内外耕地培育的差异与思考[J].植物营养与肥料学报,2015,21(6):1381-1388.

赵其国.土壤科学发展的战略思考[J].土壤,2009,41(5):681-688.

柴华,何念鹏.中国土壤容重特征及其对区域碳贮量估算的意义[J].生态学报,2016,36(13):3903-3910.

陈娟,马忠明,刘莉莉,等.不同耕作方式对土壤有机碳、微生物量及酶活性的影响[J].植物营养与肥料学报,2016,22(3):667-675.

Jin X L, Du J, Liu H J, et al. Remote estimation of soil organic matter content in the Sanjiang Plain, Northwest China:The optimal band algorithm versus the GRA-ANN model[J].Agricultural and Forest Meteorology,2016,218/219:250-260.

韩晓增,邹文秀.我国东北黑土地保护与肥力提升的成效与建议[J].中国科学院院刊,2018,33(2):206-212.

李忠芳,徐明岗,张会民,等.长期施肥条件下我国南方双季稻产量的变化趋势[J].作物学报,2013,39(5):943-949.

杨帆,李荣,崔勇,等.我国有机肥料资源利用现状与发展建议[J].中国土壤与肥料,2010(4):77-82.

刘立生,徐明岗,张璐,等.长期种植绿肥稻田土壤颗粒有机碳演变特征[J].植物营养与肥料学报,2015,21(6):1439-1446.

Shen J B, Zhu Q C, Jiao X Q, et al. Agriculture green development:A model for China and the world[J].Frontiers of Agricultural Science and Engineering,2020,7(1):5-13.

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