河口湿地不同土层有机质的水平异质性与自相关性
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摘要
以闽江河口湿地土壤有机质为研究对象,采用变异函数、多重分形分析和空间自相关法,从空间异质性和空间自相关性角度研究不同土层有机质的空间分布规律。结果表明:3个土层有机质含量均为中等变异程度,块金效应均小于25%,结构性因素对空间异质性起着主导作用。随着土层深度的增加,各土层有机质空间分形结构表现出差异性,0～20cm空间分布最不均匀,分形程度较高,空间变异性较大; 3个土层有机质的Moran I均大于1.96,呈现出显著的空间正相关,其中20～40 cm的土层有机质空间正相关最显著,空间聚集程度较高。联合变异函数、多重分形分析和空间自相关法能够较好地反映河口湿地不同土层有机质在水平上空间分布特征,为同类区域的土壤有机质空间分布研究提供方法支撑。
A better understanding of the spatial distribution of soil organic matter( SOM) plays a key role in further studying cycling process of elements in estuary wetland soil. We examined the spatial distribution of SOM at different soil layers in Minjiang estuarine wetland by using variogram,multi-fractal and spatial autocorrelation analysis. The results showed that the coefficient of variation for SOM in the layers of 0-20,20-40 and 40-60 cm were generally similar and moderate,with values of 46.25%,49.01%,and 50.49%. All the ratios of nugget to sill were less than25%,suggesting that structural factors played a dominant role in spatial heterogeneity. With the increases of soil depth,the spatial fractal structures of SOM in different soil layers were different.The SOM content in 0-20 cm layer was the most uneven,suggesting a higher fractal degree and a larger spatial variability. The Moran's I of SOM in all the three soil layers was more than 1.96,showing a significant positive spatial autocorrelation. The value of Moran's I in layer 20-40 cm was the largest,showing a more significant spatial autocorrelation and a higher spatial aggregation degree than the other two layers. In brief,our results reveal horizontal distribution characteristics of SOM in estuarine wetlands and provide methodological support for researches on the SOM spatial distribution in similar regions.
A better understanding of the spatial distribution of soil organic matter( SOM) plays a key role in further studying cycling process of elements in estuary wetland soil. We examined the spatial distribution of SOM at different soil layers in Minjiang estuarine wetland by using variogram,multi-fractal and spatial autocorrelation analysis. The results showed that the coefficient of variation for SOM in the layers of 0-20,20-40 and 40-60 cm were generally similar and moderate,with values of 46.25%,49.01%,and 50.49%. All the ratios of nugget to sill were less than25%,suggesting that structural factors played a dominant role in spatial heterogeneity. With the increases of soil depth,the spatial fractal structures of SOM in different soil layers were different.The SOM content in 0-20 cm layer was the most uneven,suggesting a higher fractal degree and a larger spatial variability. The Moran's I of SOM in all the three soil layers was more than 1.96,showing a significant positive spatial autocorrelation. The value of Moran's I in layer 20-40 cm was the largest,showing a more significant spatial autocorrelation and a higher spatial aggregation degree than the other two layers. In brief,our results reveal horizontal distribution characteristics of SOM in estuarine wetlands and provide methodological support for researches on the SOM spatial distribution in similar regions.
引文
陈光,高然,张世文,等.2015.基于多维分形法的土壤养分空间预测.农业机械学报,46(8):159-168.
郭晓伟,骆土寿,李意德,等.2015.海南尖峰岭热带山地雨林土壤有机碳密度空间分布特征.生态学报,35(23):7878-7886.
黄昌勇.2000.土壤学.北京:中国农业出版社.
李家兵,张秋婷,张丽烟,等.2016.闽江河口春季互花米草入侵过程对短叶茳芏沼泽土壤碳氮分布特征的影响.生态学报,36(12):3628-3638.
刘继龙,马孝义,付强,等.2012.不同土层土壤特性空间变异性关系的联合多重分形研究.农业机械学报,43(5):37-42.
卢霞,林雅丽,吴亚楠,等.2018.滨海湿地麋鹿野牧区土壤理化指标的空间分布特征.海洋胡沼通报,(4):74-81.
马国飞,满苏尔·沙比提,张雪琪.2017.托木尔峰南坡不同植被类型土壤特性及其海拔的关系.草业科学,34(6):1149-1158.
王华,孙志高,李家兵,等.2018.闽江口典型芦苇湿地与短叶茳芏湿地土壤碳氮含量的空间分布特征.生态学杂志,37(4):1102-1110.
王卿,安树青,马志军,等.2006.入侵植物互花米草---生物学、生态学及管理.植被分类学报,44(5):559-588.
王家强,彭杰,柳维扬,等.2014.干旱区荒漠河岸林土壤全氮空间变异特征研究.西北林学院学报,29(2):12-19.
王维奇,王纯,曾从盛,等.2012.闽江河口不同河段芦苇湿地土壤碳氮磷生态化学计量学特征.生态学报,32(13):4087-4093.
杨帆,章光新,伊雄锐,等.2009.松嫩平原西部土壤盐碱化空间变异与微地形关系研究.地理科学,29(6):869-873.
于雷,洪永胜,耿雷,等.2015.基于偏最小二乘回归的土壤有机质含量高光谱估算.农业工程学报,31(14):103-109.
张娜,张栋良,屈忠义,等.2016.不同土层土壤粒径及有机质含量空间变异的相关性研究.节水灌溉,(12):1-7.
张娜,张红玲,屈忠义,等.2017.内蒙古河套灌区不同土层有机质空间变异的分析.干旱地区农业研究,39(5):157-163.
张法升,刘作新.2011.分形理论及其在土壤空间变异研究中应用.应用生态学报,22(5):1351-1358.
张世文,葛畅,陈晓辉,等.2018.区域土壤有机碳空间分布特征与尺度效应.农业工程学报,34(2):159-168.
张志霞,许明祥,师晨迪,等.2014.黄土丘陵区不同地貌单元土壤有机碳空间变异的尺度效应.自然资源学报,29(7):1173-1184.
赵越,罗志军,廖牧鑫,等.2018.泰和县耕地土壤养分空间分布及影响因素.水土保持学报,32(5):296-303.
赵明松,张甘霖,王德彩,等.2013.徐淮黄泛平原土壤有机质空间变异特征及主控因素分析.土壤学报,50(1):1-11.
赵雲泰,黄贤金,钟太洋,等.2011.1997-2007年中国能源消费碳排放强度空间演变特征.环境科学,(11):3145-3152.
朱凤武,徐彩遥,濮励杰,等.2017.苏北滩涂围垦区土壤碳氮磷含量及其生态化学计量特征.中国土地科学,31(12):77-83.
Behera S,Mathur RK,Shukla AK,et al.2018.Spatial variability of soil properties and delineation of soil management zones of oil palm plantations grown in a hot and humid tropical region of southern India.Catena,165:251-259.
Goenster-Jordan S,Jannoura R,Jordan G,et al.2018.Spatial variability of soil properties in the floodplain of a river oasis in the Mongolian Altay Mountains.Geoderma,330:99-106.
Ibanez JJ,Perez-Gomez R,Martinez FS.2009.The spatial distribution of soil across Europe:A fractal approach.Ecological Complexity,6:294-301.
Jiang YF,Rao L,Sun K,et al.2018.Spatio-temporal distribution of soil nitrogen in Poyang lake ecological economic zone(South-China).Science of the Total Environment,626:235-243.
Kostka JE,Gribsholt B,Petrie E,et al.2002.The rates and pathways of carbon oxidation in bioturbated salt marsh sediments.Limnology and Oceanography,47:230-240.
Liu XM,Zhao KL,Xu JM,et al.2008.Spatial variability of soil organic matter and nutrients in paddy fields at various scales in southeast China.Environmental Geology,53:1139-1147.
Luque-Espinar JA,Pardo-Iguzquiza E,Grima-Olmedo J,et al.2018.Multiscale analysis of the spatial variability of heavy metals and organic matter in soils and groundwater across Spain.Journal of Hydrology,561:348-371.
Mandelbrot BB.1983.The Fractal Geometry of Nature.New York:Freeman.
Negrin VL,Spetter CV,Asteasuain RO,et al.2011.Influence of flooding and vegetation on carbon,nitrogen,and phosphorus dynamics in the pore water of a Spartina altemiflora salt marsh.Journal of Environmental Sciences,23:212-221.
Orr CH,Predick KL,Stanley EH,et al.2014.Spatial autocorrelation of denitrification in a restored and a natural floodplain.Wetlands,34:89-100.
Xie SY,Bao ZY.2004.Fractal and multifractal properties of geochemical fields.Mathematical Geology,36:847-864.
郭晓伟,骆土寿,李意德,等.2015.海南尖峰岭热带山地雨林土壤有机碳密度空间分布特征.生态学报,35(23):7878-7886.
黄昌勇.2000.土壤学.北京:中国农业出版社.
李家兵,张秋婷,张丽烟,等.2016.闽江河口春季互花米草入侵过程对短叶茳芏沼泽土壤碳氮分布特征的影响.生态学报,36(12):3628-3638.
刘继龙,马孝义,付强,等.2012.不同土层土壤特性空间变异性关系的联合多重分形研究.农业机械学报,43(5):37-42.
卢霞,林雅丽,吴亚楠,等.2018.滨海湿地麋鹿野牧区土壤理化指标的空间分布特征.海洋胡沼通报,(4):74-81.
马国飞,满苏尔·沙比提,张雪琪.2017.托木尔峰南坡不同植被类型土壤特性及其海拔的关系.草业科学,34(6):1149-1158.
王华,孙志高,李家兵,等.2018.闽江口典型芦苇湿地与短叶茳芏湿地土壤碳氮含量的空间分布特征.生态学杂志,37(4):1102-1110.
王卿,安树青,马志军,等.2006.入侵植物互花米草---生物学、生态学及管理.植被分类学报,44(5):559-588.
王家强,彭杰,柳维扬,等.2014.干旱区荒漠河岸林土壤全氮空间变异特征研究.西北林学院学报,29(2):12-19.
王维奇,王纯,曾从盛,等.2012.闽江河口不同河段芦苇湿地土壤碳氮磷生态化学计量学特征.生态学报,32(13):4087-4093.
杨帆,章光新,伊雄锐,等.2009.松嫩平原西部土壤盐碱化空间变异与微地形关系研究.地理科学,29(6):869-873.
于雷,洪永胜,耿雷,等.2015.基于偏最小二乘回归的土壤有机质含量高光谱估算.农业工程学报,31(14):103-109.
张娜,张栋良,屈忠义,等.2016.不同土层土壤粒径及有机质含量空间变异的相关性研究.节水灌溉,(12):1-7.
张娜,张红玲,屈忠义,等.2017.内蒙古河套灌区不同土层有机质空间变异的分析.干旱地区农业研究,39(5):157-163.
张法升,刘作新.2011.分形理论及其在土壤空间变异研究中应用.应用生态学报,22(5):1351-1358.
张世文,葛畅,陈晓辉,等.2018.区域土壤有机碳空间分布特征与尺度效应.农业工程学报,34(2):159-168.
张志霞,许明祥,师晨迪,等.2014.黄土丘陵区不同地貌单元土壤有机碳空间变异的尺度效应.自然资源学报,29(7):1173-1184.
赵越,罗志军,廖牧鑫,等.2018.泰和县耕地土壤养分空间分布及影响因素.水土保持学报,32(5):296-303.
赵明松,张甘霖,王德彩,等.2013.徐淮黄泛平原土壤有机质空间变异特征及主控因素分析.土壤学报,50(1):1-11.
赵雲泰,黄贤金,钟太洋,等.2011.1997-2007年中国能源消费碳排放强度空间演变特征.环境科学,(11):3145-3152.
朱凤武,徐彩遥,濮励杰,等.2017.苏北滩涂围垦区土壤碳氮磷含量及其生态化学计量特征.中国土地科学,31(12):77-83.
Behera S,Mathur RK,Shukla AK,et al.2018.Spatial variability of soil properties and delineation of soil management zones of oil palm plantations grown in a hot and humid tropical region of southern India.Catena,165:251-259.
Goenster-Jordan S,Jannoura R,Jordan G,et al.2018.Spatial variability of soil properties in the floodplain of a river oasis in the Mongolian Altay Mountains.Geoderma,330:99-106.
Ibanez JJ,Perez-Gomez R,Martinez FS.2009.The spatial distribution of soil across Europe:A fractal approach.Ecological Complexity,6:294-301.
Jiang YF,Rao L,Sun K,et al.2018.Spatio-temporal distribution of soil nitrogen in Poyang lake ecological economic zone(South-China).Science of the Total Environment,626:235-243.
Kostka JE,Gribsholt B,Petrie E,et al.2002.The rates and pathways of carbon oxidation in bioturbated salt marsh sediments.Limnology and Oceanography,47:230-240.
Liu XM,Zhao KL,Xu JM,et al.2008.Spatial variability of soil organic matter and nutrients in paddy fields at various scales in southeast China.Environmental Geology,53:1139-1147.
Luque-Espinar JA,Pardo-Iguzquiza E,Grima-Olmedo J,et al.2018.Multiscale analysis of the spatial variability of heavy metals and organic matter in soils and groundwater across Spain.Journal of Hydrology,561:348-371.
Mandelbrot BB.1983.The Fractal Geometry of Nature.New York:Freeman.
Negrin VL,Spetter CV,Asteasuain RO,et al.2011.Influence of flooding and vegetation on carbon,nitrogen,and phosphorus dynamics in the pore water of a Spartina altemiflora salt marsh.Journal of Environmental Sciences,23:212-221.
Orr CH,Predick KL,Stanley EH,et al.2014.Spatial autocorrelation of denitrification in a restored and a natural floodplain.Wetlands,34:89-100.
Xie SY,Bao ZY.2004.Fractal and multifractal properties of geochemical fields.Mathematical Geology,36:847-864.