1. Jiangxi Provincial Key Laboratory of Soil Erosion and Prevention, 330029, Nanchang, China; 2. Jiangxi Institute of Soil and Water Conservation, 330029, Nanchang, China; 3. School of Geography and Environment, Jiangxi Normal University, 330022, Nanchang, China
Abstract：[Background] Soil carbon (C) pool is regulated by water erosion on slope or watershed scale. Water erosion is a major driver to C redistribution over terrestrial landscapes and export into aquatic systems. Due to the vital function of soil organic carbon (SOC) in sustainable social and environmental development, SOC migration and its loss accompanied by soil erosion (especially water erosion) have attracted continuous and global attentions. At present, the study of soil C dynamics under water erosion mainly focused on the migration driven by surface runoff and sediment. However, dissolved organic carbon (DOC) migration driven by interflow remains largely unknown. For some well-developed interflow soils, DOC migration is not only an important way of soil C loss, but also can affect the water environment and human health.[Methods] In this study, the research progresses of DOC migration and its main driving forces driven by interflow in typical ecosystems were reviewed, based on a brief summary of the overall dynamics of SOC under water erosion.[Results] 1) DOC migration fluxes have been well documented in the world. Foreign studies focused on the loss of DOC in forest ecosystems and grassland ecosystems. The DOC migration fluxes in some agricultural ecosystems were bigger than that in natural ecosystems, which needs more attention. 2) Recently, the study of DOC migration driven by interflow has gradually increased in China, including some agricultural ecosystems in different erosion type areas, such as northeast black soil area, Sichuan purple soil area, Southwest karst area and southern red soil area. Especially the DOC migration driven by interflow in slope land in purple soil area has attracted more attentions. Many studies showed that the vertical migration of DOC accounted for a large proportion in the total SOC loss in sloping land of purple soil. 3) Rainfall was the main natural factor for DOC migration, including rainfall and rainfall intensity. Rainfall was the decisive factor for DOC migration flux; however DOC migration concentration was closely related to rainfall intensity. 4) For agricultural ecosystems, the effects of fertilization and cultivation on DOC migration have also attracted many attentions. Generally, the application of fertilizer, especially the organic fertilizer could increase DOC migration flux.[Conculsions] The main research directions in this field in the future are suggested, including research contents (DOC redistribution and its influencing factors in soil profile and synchronous monitoring of DOC and dissolved organic nitrogen), research objects (sloping cropland in red soil regions) and research methods (in-situ observation under natural rainfall).
LAL R. Soil carbon sequestration to mitigate climate change[J]. Geoderma, 2004, 123(1/2):1.
[2]
DOETTERL S, BERHE AA, NADEU E, et al. Erosion, deposition and soil carbon:A review of process-level controls, experimental tools and models to address C cycling in dynamic landscapes[J]. Earth-Science Reviews, 2016, 154:102.
[3]
黄金权. 水力侵蚀作用下小区尺度土壤有机碳动态及其微生物学机制[D]. 长沙:湖南大学, 2014:7. HUANG Jinquan. Soil organic carbon dynamic and its microbiological mechanism affected by water erosion in plot scale[D]. Changsha:Hunan University, 2014:7.
[4]
马祥华, 焦菊英. 黄土丘陵沟壑区退耕地自然恢复植被特征及其与土壤环境的关系[J]. 中国水土保持科学, 2005,3(2):15. MA Xianghua, JIAO Juying. Characteristics of vegetation with natural restoration in removal lands in loess hilly-gully region and the relationship between the characteristics and soil environment[J]. Science of Soil and Water Conservation, 2005, 3(2):15.
[5]
许明祥, 刘国彬. 黄土丘陵区刺槐人工林土壤养分特征及演变[J]. 植物营养与肥料学报, 2004, 10(1):40. XU Mingxiang, LIU Guobin. The characteristics and evolution of soil nutrient in artificial black locust (Robinia pseudoacacia) forest land in the hilly Loess Plateau[J]. Journal of Plant Nutrition and Fertilizers, 2004, 10(1):40.
[6]
LI Zhongwu, NIE Xiaodong, HE Jijun, et al. Zonal characteristics of sediment-bound organic carbon loss during water erosion:A case study of four typical loess soils in Shaanxi province[J]. Catena, 2017, 156:393.
[7]
TRUMAN C C, STRICKLAND T C, Potter T L, et al. Variable rainfall intensity and tillage effects on runoff, sediment, and carbon losses from a loamy sand under simulated rainfall[J]. Journal of Environmental Quality, 2007, 36(5):1495.
[8]
GIRMAY G, SINGH BR, NYSSEN J, et al. Runoff and sediment-associated nutrient losses under different land uses in Tigray, northern Ethiopia[J]. Journal of Hydrology, 2009, 376(1/2):70.
[9]
JIN K, CORNELIS WM, GABRIELS D, et al. Residue cover and rainfall intensity effects on runoff soil organic carbon losses[J]. Catena, 2009, 78(1):81.
[10]
NIE Xiaodong, LI Zhongwu, HE Jijun, et al. Enrichment of organic carbon in sediment under field simulated rainfall experiments[J]. Environmental Earth Sciences, 2015, 74(6):5417.
[11]
JACINTHE PA, LAL R. A mass balance approach to assess carbon dioxide evolution during erosional events[J]. Land Degradation & Development, 2001, 12:329.
[12]
LAL R. Soil carbon sequestration in China through agricultural intensification, and restoration of degraded and desertified ecosystems[J]. Land Degradation & Development, 2002, 13(6):469.
[13]
MA Wenming, LI Zhongwu, DING Keyi, et al. Effect of soil erosion on dissolved organic carbon redistribution in subtropical red soil under rainfall simulation[J]. Geomorphology, 2014, 226:217.
[14]
RITSON J P, BELL M, GRAHAM N J, et al. Simulated climate change impact on summer dissolved organic carbon release from peat and surface vegetation:Implications for drinking water treatment[J]. Water Research, 2014, 67:66.
[15]
HUA Keke, ZHU Bo, WANG Xiaoguo, et al. Forms and fluxes of soil organic carbon transport via overland flow, interflow, and soil erosion[J]. Soil Science Society of America Journal, 2016, 80(4):1011.
[16]
FUJII K, UEMURA M, Hayakawa C, et al. Fluxes of dissolved organic carbon in two tropical forest ecosystems of East Kalimantan, Indonesia[J]. Geoderma, 2009, 152(1/2):127.
[17]
JIN K, CORNELIS W M, SCHIETTE W, et al. Redistribution and loss of soil organic carbon by overland flow under various soil management practices on the Chinese Loess Plateau[J]. Soil Use and Management, 2008, 24(2):181.
[18]
HOPE D, PALMER SM, BILLETT M F, et al. Variations in dissolved CO2 and CH4 in a first-order stream and catchment:An investigation of soil-stream linkages[J]. Hydrological Processes, 2004, 18(17):3255.
[19]
HERBRICH M, GERKE HH, BENS O, et al. Water balance and leaching of dissolved organic and inorganic carbon of eroded Luvisols using high precision weighing lysimeters[J]. Soil and Tillage Research, 2017, 165:144.
[20]
KINDLER R, SIEMENS JAN, KAISER K, et al. Dissolved carbon leaching from soil is a crucial component of the net ecosystem carbon balance[J]. Global Change Biology, 2011, 17(2):1167.
[21]
WALMSLEY D C, SIEMENS J, KINDLER R, et al. Dissolved carbon leaching from an Irish cropland soil is increased by reduced tillage and cover cropping[J]. Agriculture, Ecosystems & Environment, 2011, 142(3/4):393.
[22]
方华军, 杨学明, 张晓平, 等. 坡耕地黑土活性有机碳空间分布及生物有效性[J]. 水土保持学报, 2006, 20(2):59. FANG Huajun, YANG Xueming, ZHANG Xiaoping, et al. Spatial distribution and its biologic availability of labile organic carbon of black soil at sloping field[J]. Journal of Soil and Water Conservation, 2006, 20(2):59.
[23]
HUA Keke, ZHU Bo, WANG Xiaoguo. Dissolved organic carbon loss fluxes through runoff and sediment on sloping upland of purple soil in the Sichuan Basin[J]. Nutrient Cycling in Agroecosystems, 2014, 98(2):125.
[24]
LONG Guangqiang, JIANG Yuji, SUN Bo. Seasonal and inter-annual variation of leaching of dissolved organic carbon and nitrogen under long-term manure application in an acidic clay soil in subtropical China[J]. Soil and Tillage Research, 2015(146):270.
[25]
GJETTERMANN B, STYCZEN M, Hansen H C B, et al. Challenges in modelling dissolved organic matter dynamics in agricultural soil using DAISY[J]. Soil Biology and Biochemistry, 2008, 40(6):1506.
[26]
刘霞娇, 段亚峰, 叶莹莹, 等. 耕作扰动对喀斯特土壤可溶性有机质及其组分迁移淋失的影响[J]. 生态学报, 2018, 38(19):6981. LIU Xiajiao, DUAN Yafeng, YE Yingying, et al. The impacts of tillage on soil soluble organic matter and its movement and leaching in karst area[J]. Acta Ecologica Sinica, 2018, 38(19):6981.
[27]
李太魁, 杨小林, 花可可, 等. 紫色土坡耕地可溶性有机碳淋失特征[J]. 生态环境学报, 2018, 27(10):1836. LI Taikui, YANG Xiaolin, HUA Keke, et al. Characteristics of dissolved organic carbon leaching from sloping cropland in the purple soil[J]. Ecology and Environmental Sciences, 2018, 27(10):1836.
[28]
FILEP T, RÉKÁSI M. Factors controlling dissolved organic carbon (DOC), dissolved organic nitrogen (DON) and DOC/DON ratio in arable soils based on a dataset from Hungary[J]. Geoderma, 2011, 162(3/4):312.
[29]
MERTENS J, VANDERBORGHT J, KASTEEL R, et al. Dissolved organic carbon fluxes under bare soil[J]. J Environ Qual, 2007, 36(2):597.
[30]
LI Taikui, ZHU Bo, WANG Xiaoguo, et al. Characteristics of dissolved organic carbon leaching from hillslope cropland of purple soil in the Sichuan Basin, China[J]. Journal of Food, Agriculture & Environment, 2013, 11(2):1522.
[31]
FRÖBERG M, BERGGREN D, BERGKVIST B, et al. Concentration and fluxes of dissolved organic carbon (DOC) in three Norway spruce stands along a climatic gradient in Sweden[J]. Biogeochemistry, 2006, 77(1):1.
[32]
DUSEK J, VOGEL T, DOHNAL M, et al. Dynamics of dissolved organic carbon in hillslope discharge:Modeling and challenges[J]. Journal of Hydrology, 2017, 546:309.
[33]
花可可, 朱波, 王小国. 紫色土坡耕地可溶性有机碳径流迁移特征[J]. 农业工程学报, 2013, 29(5):81. HUA Keke, ZHU Bo, WANG Xiaoguo. Characteristics of dissolved organic carbon transport via overland flow and interflow on sloping cropland of purple soil[J]. Transactions of the CSAE, 2013, 29(5):81.
[34]
GAO Yang, ZHU Bo, HE Nianpeng, et al. Phosphorus and carbon competitive sorption-desorption and associated non-point loss respond to natural rainfall events[J]. Journal of Hydrology, 2014, 517:447.
[35]
ANDERSSON S, NILSSON SI, SAETRE P. Leaching of dissolved organic carbon (DOC) and dissolved organic nitrogen (DON) in mor humus as affected by temperature and pH[J]. Soil Biology & Biochemistry, 2000, 32:1.
[36]
MANNINEN N, SOINNE H, LEMOLA R, et al. Effects of agricultural land use on dissolved organic carbon and nitrogen in surface runoff and subsurface drainage[J]. Science of the Total Environment, 2018, 618:1519.
[37]
KAISER K, GUGGENBERGER G, HAUMAIER L, et al. Dissolved organic matter sorption on subsoils and minerals studied by 13C-NMR and DRIFT spectroscopy[J]. European Journal of Soil Science, 1997, 48:301.
[38]
BRYE K R, NORMAN J M, BUNDY L G, et al. Nitrogen and carbon leaching in agroecosystems and their role in denitrification potential[J]. Journal of Environmental Quality, 2001, 30(1):58.
[39]
VINTHER F P, HANSEN E M, ERIKSEN J. Leaching of soil organic carbon and nitrogen in sandy soils after cultivating grass-clover swards[J]. Biology and Fertility of Soils, 2006, 43(1):12.
[40]
RIECKH H, GERKE H H, SIEMENS J, et al. Water and dissolved carbon fluxes in an eroding soil landscape depending on terrain position[J]. Vadose Zone Journal, 2014, 13(7):21.
[41]
谢颂华, 莫明浩, 涂安国, 等. 自然降雨条件下红壤坡面径流垂向分层输出特征[J]. 农业工程学报, 2014, 30(19):132. XIE Songhua, MO Minghao, TU Anguo, et al. Characteristics of vertical runoff output on red-soil slope under natural rainfall condition[J]. Transactions of the CSAE, 2014, 30(19):132.
2020, Vol. 18 
