内陆河流域土地利用对土壤无机碳的影响
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摘要
盐碱土碳循环在缓解气候变化的贡献与作用等方面受到广泛关注,土地利用是影响干旱区土壤碳动态的主要要素,认识其对土壤碳的影响过程,有助于评估盐碱土的碳汇作用。本研究以三工河流域绿洲为对象,通过野外定点采样结合室内分析,探讨了土地利用对土壤无机碳(SIC)的影响。结果表明:整个研究区SIC含量均值为4.81 g·kg-1,其中人工林地和耕地的SIC均值低于4.61 g·kg-1,超过30%耕地与人工林地样点集中分布在小于4 g·kg-1的区域,而其他土地利用类型均高于5 g·kg-1,其70%以上的样点集中分布在大于4 g·kg-1区域,由于人为活动的影响,自然景观SIC含量明显高于灌溉景观;流域中上部SIC含量明显低于流域下部(P<0.05),随地貌单元变化,SIC含量呈现为冲洪积扇中上部<冲洪积平原上部<冲洪积平原下部<地下水溢出带;土壤SIC储量为盐碱地<灌木林地<草地<人工林地<耕地,其中,盐碱地SIC储量最小(仅1.17 kg·m-2),耕地SIC储量最大(1.44 kg·m-2)。表层土壤SIC储量受区域土地利用作用影响明显,灌溉景观土壤SIC储量高于自然景观;方差、多元线性和逐步回归分析表明,各因素对SIC含量变化影响明显,其程度大小为地貌单元>土地利用类型>电导率>作物类型。
Soil carbon( C) cycling in alkaline-saline soils has received great attention in recent years because of its potential role in climate change mitigation in arid regions,and it is sensitive to land use change. Understanding its impacts on soil carbon can help accurately assess carbon sink in saline-alkaline soil. Here,we quantified the effects of different land use types on the spatial distributions of soil inorganic C at a typical watershed in the arid region of northwest China.Soil samples were collected from the oasis in the Sangong River Basin,which covered different land use types,such as grassland,saline-alkali land,shrub land,planted land,as well as different types of croplands. The mean inorganic C content of the entire study area was 4. 81 g ·kg-1. The mean value in cropland and planted forest was lower than 4. 61 g · kg-1,with more than 30% soil samples was concentrated in lower than 4 g·kg-1. The value from other land use types was higher than 5 g·kg-1,with more than 70% soil samples was concentrated in higher than 4 g·kg-1. For all land use types,the mean value of inorganic C content was higher in natural landscape than that in irrigated landscape. The inorganic C content was obviously lower in alluvial-proluvial delta than in alluvial plain( P<0.05),and the soil inorganic C content in different geomorphology zones were in the following order: middle-upper alluvial-proluvial deltaland use type>electrical conductivity>crop type.
Soil carbon( C) cycling in alkaline-saline soils has received great attention in recent years because of its potential role in climate change mitigation in arid regions,and it is sensitive to land use change. Understanding its impacts on soil carbon can help accurately assess carbon sink in saline-alkaline soil. Here,we quantified the effects of different land use types on the spatial distributions of soil inorganic C at a typical watershed in the arid region of northwest China.Soil samples were collected from the oasis in the Sangong River Basin,which covered different land use types,such as grassland,saline-alkali land,shrub land,planted land,as well as different types of croplands. The mean inorganic C content of the entire study area was 4. 81 g ·kg-1. The mean value in cropland and planted forest was lower than 4. 61 g · kg-1,with more than 30% soil samples was concentrated in lower than 4 g·kg-1. The value from other land use types was higher than 5 g·kg-1,with more than 70% soil samples was concentrated in higher than 4 g·kg-1. For all land use types,the mean value of inorganic C content was higher in natural landscape than that in irrigated landscape. The inorganic C content was obviously lower in alluvial-proluvial delta than in alluvial plain( P<0.05),and the soil inorganic C content in different geomorphology zones were in the following order: middle-upper alluvial-proluvial delta
引文
柴晨好,王玉刚,周宏飞,等.2018.干旱区典型绿洲水库库周土壤盐分空间分异及盐岛效应.生态学杂志,37(8):2445-2452.
贺云龙,齐玉春,彭琴,等.2017.外源碳输入对陆地生态系统碳循环关键过程的影响及其微生物学驱动机制.生态学报,37(2):358-366.
李彦,王玉刚,唐立松.2016.重新被“激活”的土壤无机碳研究.土壤学报,53(4):845-849.
李梦天,秦燕燕,曹建军,等.2018.半干旱地区林型对土壤有机碳的影响---以会宁为例.生态学杂志,37(12):3541-3548.
刘哲,陈懂懂,李奇,等.2016.土地利用方式对高寒草甸生态系统土壤无机碳的影响.水土保持通报,36(5):74-80.
鲁如坤.2000.土壤农业化学分析方法.北京:中国农业科技出版社.
雒琼,王玉刚,邓彩云,等.2017.干旱区土壤剖面无机碳分布及其与盐碱性的关系研究.水土保持学报,33(10):240-246.
牛子儒,王玉刚,邓彩云,等.2016.耕作对干旱区表层土壤无机碳的影响.生态学杂志,35(10):2714-2720.
王玉刚,王忠媛,李彦.2013.干旱区盐碱土剖面无机碳组分分布特征.干旱区地理,36(4):631-636.
王玉刚,肖笃宁,李彦,等.2011.三工河流域绿洲土壤有机碳的空间分布.中国沙漠,31(1):101-107.
王玉刚,郑新军,李彦.2009.干旱区不同景观单元土壤盐分的变化特征.生态学杂志,28(11):2293-2298.
解怀亮,王玉刚,李彦.2015.干旱区灌溉过程中碳淋溶试验研究.干旱区研究,32(5):903-909.
徐丽,于贵瑞,何念鹏.2018.1980s-2010s中国陆地生态系统土壤碳储量的变化.地理学报,73(11):2150-2167.
颜安,王泽,蒋平安,等.2017.土壤盐分对干旱区盐渍土壤碳垂直分布的影响.干旱区研究,34(4):770-774.
杨帆,黄来明,李德成,等.2015.高寒山区地形序列土壤有机碳和无机碳垂直分布特征及其影响因素.土壤学报,52(6):1226-1236.
杨文静.2015.长期不同土壤管理措施塿土无机碳储量及其与有机碳的转化关系(硕士学位论文).陕西杨凌:西北农林科技大学.
余健,房莉,卞正富,等.2014.土壤碳库构成研究进展.生态学报,34(17):4829-4838.
张新厚,范志平,孙学凯,等.2009.半干旱区土地利用方式变化对生态系统碳储量的影响.生态学杂志,28(12):2424-2430.
周宏飞,吴波,王玉刚,等.2017.新疆生产建设兵团农垦生态建设的成就、问题及对策刍议.中国科学院院刊,22(1):55-63.
Canadell JG,Le QC,Raupach MR,et al.2007.Contributions to accelerating atmospheric CO2growth from economic activity,carbon intensity,and efficiency of natural sinks.Proceedings of the National Academy of Sciences of the United States of America,104:18866-18870.
Chang R,Fu B,Liu G,et al.2012.The effects of afforestation on soil organic and inorganic carbon:A case study of the Loess Plateau of China.Catena,95:145-152.
Fang J,Yu G,Liu L,et al.2018.Climate change,human impacts,and carbon sequestration in China.Proceedings of the National Academy of Sciences of the United States of America,115:4015-4020.
Guo Y,Wang X,Li X,et al.2016.Dynamics of soil organic and inorganic carbon in the cropland of upper Yellow River Delta,China.Scientific Reports,6:36105.
Lal R.2004.Soil carbon sequestration impacts on global climate change and food security.Science,304:1623-1627.
Lal R.2016.Beyond COP 21:Potential and challenges of the“4 per Thousand”initiative.Journal of Soil&Water Conservation,71:20A-25A.
Li J,Richter D,Mendoza A,et al.2010.Effects of land-use history on soil spatial heterogeneity of macro-and trace elements in the Southern Piedmont USA.Geoderma,156:60-73.
Li Y,Wang Y,Houghton RA,et al.2015.Hidden carbon sink beneath desert.Geophysical Research Letters,42:5880-5887.
Li Y,Zhang C,Wang N,et al.2017.Substantial inorganic carbon sink in closed drainage basins global.Nature Geoscience,10:501-506.
Liu Z,Dreybrodt W,Wang H.2010.A new direction in effective accounting for the atmospheric CO2budget:Considering the combined action of carbonate dissolution,the global water cycle and photosynthetic uptake of DIC by aquatic organisms.Earth-Science Reviews,99:162-172.
Ma Y,Gao Y,Feng Q.2010.Effects of p H and temperature on Ca CO3,crystallization in aqueous solution with water soluble matrix of pearls.Journal of Crystal Growth,312:3165-3170.
Poeplau C,Don A.2013.Sensitivity of soil organic carbon stocks and fractions to different land-use changes across Europe.Geoderma,192:189-201.
QuéréCL,Moriarty R,Andrew RM,et al.2015.Global carbon budget.Earth System Science Data,7:349-396.
Tan W,Zhang R,Cao H,et al.2014.Soil inorganic carbon stock under different soil types and land uses on the Loess Plateau region of China.Catena,121:22-30.
Tang X,Zhao X,Bai Y,et al.2018.Carbon pools in China’s terrestrial ecosystems:New estimates based on an intensive field survey.Proceedings of the National Academy of Sciences of the United States of America,115:4021-4026.
Wang F,Zhu W,Chen H.2015.Changes of soil C stocks and stability after 70-year afforestation in the Northeast USA.Plant and Soil,401:319-329.
Wang K,Ren Z,Deng L,et al.2016.Profile distributions and controls of soil inorganic carbon along a 150-year natural vegetation restoration chronosequence.Soil Science Society of America Journal,80:193-202.
Wang Y,Jiang J,Niu Z,et al.2019.Responses of soil organic and inorganic carbon vary at different soil depths after longterm agricultural cultivation in Northwest China.Land Degradation&Development,30:1229-1242.
Wang Y,Li Y.2013.Land exploitation resulting in soil salinization in a desert-oasis ecotone.Catena,100:50-56.
Wang Y,Xiao D,Li Y,et al.2008a.Soil salinity evolution and its relationship with dynamics of groundwater in the oasis of inland river basins:A case study Fubei Region of Xinjiang Province,China.Environmental Monitoring and Assessment,140:291-302.
Wang Y,Xiao D,Yan L.2007.Temporal-spatial change in soil degradation and its relationship with landscape types in a desert-oasis ecotone:A case study in the Fubei region of Xinjiang Province,China.Environmental Geology,51:1019-1028.
Wu HB,Guo ZT,Gao Q,et al.2009.Distribution of soil inorganic carbon storage and its changes due to agricultural land use activity in China.Agriculture,Ecosystems&Environment,129:413-421.
Zamanian K,Pustovoytov K,Kuzyakov Y.2016.Pedogenic carbonates:Forms and formation processes.Earth-Science Reviews,157:1-17.
Zhang Z,Abuduwaili J,Yimit H,et al.2014.The occurrence,sources and spatial characteristics of soil salt and assessment of soil salinization risk in Yanqi basin,northwest China.PLo S One,9:e106079.
Zhao Q,Bai J,Lu Q,et al.2016.Effects of salinity on dynamics of soil carbon in degraded coastal wetlands:Implications on wetland restoration.Physics and Chemistry of the Earth,Parts A/B/C,2016:S1474706516300493.
贺云龙,齐玉春,彭琴,等.2017.外源碳输入对陆地生态系统碳循环关键过程的影响及其微生物学驱动机制.生态学报,37(2):358-366.
李彦,王玉刚,唐立松.2016.重新被“激活”的土壤无机碳研究.土壤学报,53(4):845-849.
李梦天,秦燕燕,曹建军,等.2018.半干旱地区林型对土壤有机碳的影响---以会宁为例.生态学杂志,37(12):3541-3548.
刘哲,陈懂懂,李奇,等.2016.土地利用方式对高寒草甸生态系统土壤无机碳的影响.水土保持通报,36(5):74-80.
鲁如坤.2000.土壤农业化学分析方法.北京:中国农业科技出版社.
雒琼,王玉刚,邓彩云,等.2017.干旱区土壤剖面无机碳分布及其与盐碱性的关系研究.水土保持学报,33(10):240-246.
牛子儒,王玉刚,邓彩云,等.2016.耕作对干旱区表层土壤无机碳的影响.生态学杂志,35(10):2714-2720.
王玉刚,王忠媛,李彦.2013.干旱区盐碱土剖面无机碳组分分布特征.干旱区地理,36(4):631-636.
王玉刚,肖笃宁,李彦,等.2011.三工河流域绿洲土壤有机碳的空间分布.中国沙漠,31(1):101-107.
王玉刚,郑新军,李彦.2009.干旱区不同景观单元土壤盐分的变化特征.生态学杂志,28(11):2293-2298.
解怀亮,王玉刚,李彦.2015.干旱区灌溉过程中碳淋溶试验研究.干旱区研究,32(5):903-909.
徐丽,于贵瑞,何念鹏.2018.1980s-2010s中国陆地生态系统土壤碳储量的变化.地理学报,73(11):2150-2167.
颜安,王泽,蒋平安,等.2017.土壤盐分对干旱区盐渍土壤碳垂直分布的影响.干旱区研究,34(4):770-774.
杨帆,黄来明,李德成,等.2015.高寒山区地形序列土壤有机碳和无机碳垂直分布特征及其影响因素.土壤学报,52(6):1226-1236.
杨文静.2015.长期不同土壤管理措施塿土无机碳储量及其与有机碳的转化关系(硕士学位论文).陕西杨凌:西北农林科技大学.
余健,房莉,卞正富,等.2014.土壤碳库构成研究进展.生态学报,34(17):4829-4838.
张新厚,范志平,孙学凯,等.2009.半干旱区土地利用方式变化对生态系统碳储量的影响.生态学杂志,28(12):2424-2430.
周宏飞,吴波,王玉刚,等.2017.新疆生产建设兵团农垦生态建设的成就、问题及对策刍议.中国科学院院刊,22(1):55-63.
Canadell JG,Le QC,Raupach MR,et al.2007.Contributions to accelerating atmospheric CO2growth from economic activity,carbon intensity,and efficiency of natural sinks.Proceedings of the National Academy of Sciences of the United States of America,104:18866-18870.
Chang R,Fu B,Liu G,et al.2012.The effects of afforestation on soil organic and inorganic carbon:A case study of the Loess Plateau of China.Catena,95:145-152.
Fang J,Yu G,Liu L,et al.2018.Climate change,human impacts,and carbon sequestration in China.Proceedings of the National Academy of Sciences of the United States of America,115:4015-4020.
Guo Y,Wang X,Li X,et al.2016.Dynamics of soil organic and inorganic carbon in the cropland of upper Yellow River Delta,China.Scientific Reports,6:36105.
Lal R.2004.Soil carbon sequestration impacts on global climate change and food security.Science,304:1623-1627.
Lal R.2016.Beyond COP 21:Potential and challenges of the“4 per Thousand”initiative.Journal of Soil&Water Conservation,71:20A-25A.
Li J,Richter D,Mendoza A,et al.2010.Effects of land-use history on soil spatial heterogeneity of macro-and trace elements in the Southern Piedmont USA.Geoderma,156:60-73.
Li Y,Wang Y,Houghton RA,et al.2015.Hidden carbon sink beneath desert.Geophysical Research Letters,42:5880-5887.
Li Y,Zhang C,Wang N,et al.2017.Substantial inorganic carbon sink in closed drainage basins global.Nature Geoscience,10:501-506.
Liu Z,Dreybrodt W,Wang H.2010.A new direction in effective accounting for the atmospheric CO2budget:Considering the combined action of carbonate dissolution,the global water cycle and photosynthetic uptake of DIC by aquatic organisms.Earth-Science Reviews,99:162-172.
Ma Y,Gao Y,Feng Q.2010.Effects of p H and temperature on Ca CO3,crystallization in aqueous solution with water soluble matrix of pearls.Journal of Crystal Growth,312:3165-3170.
Poeplau C,Don A.2013.Sensitivity of soil organic carbon stocks and fractions to different land-use changes across Europe.Geoderma,192:189-201.
QuéréCL,Moriarty R,Andrew RM,et al.2015.Global carbon budget.Earth System Science Data,7:349-396.
Tan W,Zhang R,Cao H,et al.2014.Soil inorganic carbon stock under different soil types and land uses on the Loess Plateau region of China.Catena,121:22-30.
Tang X,Zhao X,Bai Y,et al.2018.Carbon pools in China’s terrestrial ecosystems:New estimates based on an intensive field survey.Proceedings of the National Academy of Sciences of the United States of America,115:4021-4026.
Wang F,Zhu W,Chen H.2015.Changes of soil C stocks and stability after 70-year afforestation in the Northeast USA.Plant and Soil,401:319-329.
Wang K,Ren Z,Deng L,et al.2016.Profile distributions and controls of soil inorganic carbon along a 150-year natural vegetation restoration chronosequence.Soil Science Society of America Journal,80:193-202.
Wang Y,Jiang J,Niu Z,et al.2019.Responses of soil organic and inorganic carbon vary at different soil depths after longterm agricultural cultivation in Northwest China.Land Degradation&Development,30:1229-1242.
Wang Y,Li Y.2013.Land exploitation resulting in soil salinization in a desert-oasis ecotone.Catena,100:50-56.
Wang Y,Xiao D,Li Y,et al.2008a.Soil salinity evolution and its relationship with dynamics of groundwater in the oasis of inland river basins:A case study Fubei Region of Xinjiang Province,China.Environmental Monitoring and Assessment,140:291-302.
Wang Y,Xiao D,Yan L.2007.Temporal-spatial change in soil degradation and its relationship with landscape types in a desert-oasis ecotone:A case study in the Fubei region of Xinjiang Province,China.Environmental Geology,51:1019-1028.
Wu HB,Guo ZT,Gao Q,et al.2009.Distribution of soil inorganic carbon storage and its changes due to agricultural land use activity in China.Agriculture,Ecosystems&Environment,129:413-421.
Zamanian K,Pustovoytov K,Kuzyakov Y.2016.Pedogenic carbonates:Forms and formation processes.Earth-Science Reviews,157:1-17.
Zhang Z,Abuduwaili J,Yimit H,et al.2014.The occurrence,sources and spatial characteristics of soil salt and assessment of soil salinization risk in Yanqi basin,northwest China.PLo S One,9:e106079.
Zhao Q,Bai J,Lu Q,et al.2016.Effects of salinity on dynamics of soil carbon in degraded coastal wetlands:Implications on wetland restoration.Physics and Chemistry of the Earth,Parts A/B/C,2016:S1474706516300493.