断陷盆地区不同土地利用方式土壤钙形态分布特征

李菁; 杨程; 靳振江; 朱同彬; 曹建华

doi:10.11932/karst2019y14

断陷盆地区不同土地利用方式土壤钙形态分布特征

doi: 10.11932/karst2019y14

1.
桂林理工大学环境科学与工程学院，广西桂林 541004
2.
江苏省地质调查研究院，南京 210018
3.
中国地质科学院岩溶地质所/自然资源部、广西岩溶动力学重点实验室，广西桂林 541004

基金项目: 国家重点研发计划项目（2016YFC0502503）；中国地质科学院基本科研业务费专项经费资助（YYWF201637, 201724）

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出版历程
- 发布日期: 2019-12-25

Characteristics of calcium fraction distribution in soil under different land use types in karst fault-depression basins

1.
College of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China
2.
Geological Survey of Jiangsu Province, Nanjing, Jiangsu 210018, China
3.
Key Laboratory of Karst Dynamics, MNR & GZAR / Institute of Karst Geology, CAGS, Guilin， Guangxi 541004, China

摘要

摘要: 选择云南省蒙自市西北勒乡碧色寨村具有典型岩溶地貌特征的草地、人工林地、玉米地（由草地开垦种植玉米2年）和火龙果地（由草地开垦种植火龙果5年）作为研究对象，采用连续浸提（BCR）提取方法测定不同形态钙含量，以探讨岩溶区不同土地利用方式下石灰性土壤钙形态特征及其影响因素。结果表明：土地利用方式显著影响了土壤全钙含量及其形态分布；草地土壤全钙和各形态钙含量均高于其他土地利用类型，玉米地最低；４种土地利用方式土壤钙的赋存形态主要为交换态（占总量的59.4%~74.8%），有机结合态钙含量最低（占总量的0.5%~1.0%）；全钙和各形态钙与有机碳、全氮、全镁、阳离子交换量（CEC）、pH呈显著正相关，说明全钙和各形态钙与土壤物理化学性质是互相影响的。
- 断陷盆地 /
- 土地利用类型 /
- BCR提取方法 /
- 石灰性土壤 /
- 钙形态
Abstract: Limestone soil in karst regions is characterized by high pH and calcium (Ca) content, which is one of the key elements in determining the structure and function of karst ecosystems, and is significantly affected by land use types. However, so far there are few studies on soil Ca fraction distribution under different land use types in karst fault-depression basins. This study chose four land use types including grassland, plantation, cornfield and dragon fruit landing the Bisezhai village, Xibeile country in Mengzi City, Yunnan Province as objectives, all of which are characterized by typical karst landforms. The BCR three-step sequential extraction method was used to determine the content of different Ca forms under different land use types in karst areas and influence factors. The results show land use types significantly influence soil total Ca content and its fraction distribution. Total Ca and various Ca forms in grassland soil are greatly higher than other land use types, and the lowest values appear in cornfield. The exchangeable Ca form is dominant in all soils, accounting for 59.4%-74.8% of total Ca, while the content of bound to organic matter-Ca is the lowest, accounting for 0.5%-1.0% of total Ca. The contents of total Ca and various Ca forms are significantly positively correlated with organic carbon, total N, total Mg, CEC, and pH. These data indicate that total Ca and various Ca forms interact with the physical and chemical properties of the soil to some extent.
- karst faulted basin /
- land use types /
- BCR three-step sequential extraction method /
- limestone soil /
- calcium speciation

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参考文献(33)

[1]	陈同庆,魏兴琥,关共凑,等.粤北岩溶区不同土地利用方式对土壤钙离子的影响［J］.热带地理,2014,34(3):337-343.
[2]	Brandy N C,Weil R R.The Nature and Properties of Soil［M］. New Jersey: Prentice Hall,2002.
[3]	袁道先.全球岩溶生态系统对比：科学目标和执行计划［J］.地球科学进展,2001,16(4):461-466.
[4]	Daoxian Y.Karst of China［M］. Beijing: Geological Publishing House,1991.
[5]	李小方.岩溶环境中土壤-植物系统钙元素形态分析及其生态意义［D］.桂林：广西师范大学,2006.
[6]	蔡卓,肖少荣,郑海林.元素形态分析［J］.广西大学学报（自然科学版）,1996,21(3):242-246.
[7]	杨慧,陈家瑞,梁建宏,等.桂林丫吉岩溶区土壤有机碳和pH值与钙形态分布的关系初探［J］.地质论评,2017,63(4):1117-1126.
[8]	Wei L,Longjiang Y,Qiufang H,et al.Effects of microbes and their carbonic anhydrase on Ca2+ and Mg2+ migration in column-built leached soil-limestone karst systems［J］.Applied Soil Ecology, 2004,29(3): 274-281.
[9]	申瑞玲,郝云龙,蒋士飞.土壤重金属污染现状及其治理方法［J］.西部资源,2014(6):137-139.
[10]	魏兴琥,雷俐,刘淑娟,等.粤北岩溶峰林植物钙吸收、转运、返还能力及适应性分析［J］.中国岩溶,2017, 36(3):268-376.
[11]	Robert J,Christine A,J?rg P.Calcium Loss in Central European Forest Soils［J］.Soil Science Society of America Journal,2004, 68(2):588-595.
[12]	陈家瑞,曹建华,梁毅,等.石灰土发育过程中土壤腐殖质组成及其与土壤钙赋存形态关系［J］.中国岩溶,2012, 31(1):7-11.
[13]	Hui Y,Jianhong L,Jiarui C, et al.Soil Calcium Speciation at Different Geomorphological Positions in the Yaji Karst Experimental Site in Guilin, China［J］.Journal of Resources and Ecology,2015, 6(4):224-229.
[14]	李忠云,魏兴琥,李保生,等.粤北岩溶峰丛自然坡面土壤钙元素的空间分布［J］.水土保持通报,2016,36(3):62-68.
[15]	李光超.典型岩溶区板栗树下土壤钙元素的迁移及其生态效应［D］.桂林：广西师范大学,2012.
[16]	曹建华,邓艳,杨慧,等.喀斯特断陷盆地石漠化演变及治理技术与示范［J］.生态学报,2016,36(22):7103-7108.
[17]	王宇,张华,张贵,等.喀斯特断陷盆地环境地质分区及功能［J］.中国岩溶,2017,36(3):283-295.
[18]	鲍士旦.土壤农化分析［M］. 北京: 中国农业出版社,2000.
[19]	中国土壤学会.土壤农业化学分析方法［M］. 北京: 中国农业科技出版社,2000.
[20]	余海,王世杰.土壤中钙形态的连续浸提方法［J］.岩矿测试,2007, 26(6):436-440.
[21]	赵仕花.不同土地利用下土壤营养元素形态的研究［D］.桂林：广西师范大学,2007.
[22]	曹建华,袁道先,潘根兴.岩溶生态系统中的土壤［J］.地球科学进展,2003, 18(1):37-44.
[23]	章程.典型岩溶泉流域不同土地利用方式土壤营养元素形态及其影响因素［J］.水土保持学报,2009, 23(4):165-169，199.
[24]	黄黎英.毛村土壤溶解有机碳的季节变化及环境效应［D］.桂林：广西师范大学,2006.
[25]	李新爱,童成立,蒋平,等.长期不同施肥对稻田土壤有机质和全氮的影响［J］.土壤,2006,38(3):298-303.
[26]	王敬,程谊,蔡祖聪,等.长期施肥对农田土壤氮素关键转化过程的影响［J］.土壤学报,2016,53(2):292-304.
[27]	周卫,林葆.土壤中钙的化学行为与生物有效性研究进展［J］.土壤肥料,1996(5):19.
[28]	Dahlqvist R,Benedetti M F,Andersson K, et al.Association of calcium with colloidal particles and speciation of calcium in the Kalix and Amazon rivers［J］. Geochimica Et Cosmochimica Acta,2004,68(20): 4059-4075.
[29]	谢丽萍,王世杰,肖德安.喀斯特小流域植被-土壤系统钙的协变关系研究［J］.地球与环境,2007,35(1):26-32.
[30]	王冬艳,李月芬,尚媛,等.吉林延边地区土壤钙元素生态地球化学［J］.吉林大学学报（地球科学版）,2011, 41(1):215-221.
[31]	王敬国.植物营养的土壤化学［M］. 北京: 中国农业出版社,1995.
[32]	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.
[33]	黄昌勇.土壤学［M］. 北京：中国农业出版社,2000.