LI Wenyu,LIU Xiaofang,ZHAO Yonggang,et al.Spatial Variability of Soil Organic Carbon and Its Influencing Factors in an Artificial Caragana korshinskii Dominated Small Watershed in the Hilly Region of the Loess Plateau[J].Research of Soil and Water Conservation,2020,27(02):15-22.
黄土丘陵区人工柠条恢复为主小流域土壤有机碳空间变异性及其影响因素
- Title:
- Spatial Variability of Soil Organic Carbon and Its Influencing Factors in an Artificial Caragana korshinskii Dominated Small Watershed in the Hilly Region of the Loess Plateau
- 文章编号:
- 1005-3409(2020)02-0015-08
- Keywords:
- soil organic carbon; geostatistics; Caragana korshinskii; terrain; land preparation method
- 分类号:
- S153.6
- 文献标志码:
- A
- 摘要:
- 柠条是黄土丘陵区人工植被恢复生态环境的重要树种。为进一步研究大面积种植柠条对小流域土壤有机碳空间分布的影响,选择人工柠条种植为主的宁夏固原市上黄村火岔湾小流域为研究区域,分析了其土壤有机碳的空间变异特征及其影响因素。基于野外取样和室内分析,利用地统计学和ArcGIS空间分析,分析了小流域0—40 cm土层土壤有机碳的空间分布与变异性,不同土地利用方式以及地形和整地方式等对其的影响。结果表明:(1)不同土地利用方式对小流域土壤有机碳含量有显著影响,表现为林地>灌木地>农地>草地,分布范围为8.78～29.81 g/kg,变异系数为19.03%～21.80%,属中等程度变异。(2)小流域各土层有机碳的最优拟合模型均为球面模型,具有强烈的空间分布相关性,并以结构性因素引起的变异为主。(3)小流域土壤有机碳含量呈斑块状空间分布,以人工种植柠条为主的区域整体土壤有机碳含量较高。(4)坡位和整地方式对整个小流域土壤有机碳含量有显著影响(p<0.05),地形对不同土地利用方式的有机碳含量影响不大,但整地方式对柠条灌丛地土壤有机碳含量有显著影响(p<0.05)。研究结果总体说明,以人工柠条种植为主的植被恢复方式促进了黄土丘陵区小流域土壤有机碳的积累,但小流域土壤有机碳空间分布及其变异性也受土地利用方式及其坡位和整地方式的重要影响。在实际区域土壤有机碳研究中有必要将整地方式和植被类型相结合进行综合研究。
- Abstract:
- Caragana korshinskii is an important plant species in loess hill-gully area to restore ecological environment. To further understand the effect of large-area plantation with Caragana korshinskii on the spatial distribution of soil organic carbon in small watershed, Huochawan watershed in Shanghuang Village, Guyuan City, Ningxia was selected as the research site to analyze the spatial variation characteristics of soil organic carbon and its influencing factors. Based on field sampling and laboratory testing, the Geo-statistics and ArcGIS spatial analysis techniques were used to study the spatial distribution and variability of soil organic carbon in 0—40 cm soil layer. The results showed that:(1)the differences of average soil organic carbon among different land uses reached the remarkable level, the average content of soil organic carbon decreased in the order: forestland>shrub land>farmland>grassland, the soil organic carbon content ranged from 8.78 g/kg to 29.81 g/kg, and the coefficient of variation was between 19.03% and 21.80%, which belonged to intermediate variability;(2)the best theoretical models of soil organic carbon in each soil layer in the small watershed are spherical models, which presented the strong spatial distribution correlation, and the spatial variability of soil organic carbon pool was mainly caused by structural factors;(3)the soil organic carbon content in the small watershed presented a polygon spatial distribution, and the overall soil organic carbon content in the region dominated by the plantation Caragana korshinskii was high;(4)slope position and microtopography had the significant effect on soil organic carbon in small watershed (p<0.05), while only microtopography had a significant effect on shrub land (p<0.05). In general, the accumulation of soil organic carbon is being enhanced by the cultivation of caragana korshinskii, but at the same time the microtopography land preparation method has an important impact on the spatial variability of soil organic carbon. It is necessary to study soil organic carbon by comprehensively considering the combination of the land preparation method with vegetation type in the actual region.
参考文献/References:
[1] Shi P, Zhang Y, Li Z, et al. Distribution of soil organic carbon impacted by land-use changes in a hilly watershed of the Loess Plateau, China[J]. Science of the Total Environment, 2019,652:505-512.
[2] Jin Z, Cui B, Song Y, et al. How many check dams do we need to build on the Loess Plateau[J]. Environmental Science & Technology, 2012,46(16):8527-8528.
[3] 贾宇平,苏志珠,段建南.黄土高原沟壑区小流域土壤有机碳空间变异[J].水土保持学报,2004,18(1):31-34.
[4] 陈朝,吕昌河,范兰,等.土地利用变化对土壤有机碳的影响研究进展[J].生态学报,2011,31(18):5358-5371.
[5] 孙文义,郭胜利.天然次生林与人工林对黄土丘陵沟壑区深层土壤有机碳氮的影响[J].生态学报,2010,30(10):2611-2620.
[6] 刘守赞,郭胜利,王小利,等.植被对黄土高原沟壑区坡地土壤有机碳的影响[J].自然资源学报,2005,20(4):529-536.
[7] 张梦薇,吕成文.丰乐河流域表层土壤有机碳空间变异特征研究[J].长江流域资源与环境,2018,27(7):1576-1583.
[8] 赵明松,张甘霖,王德彩,等.徐淮黄泛平原土壤有机质空间变异特征及主控因素分析[J].土壤学报,2013,50(1):1-11.
[9] 魏孝荣,邵明安.黄土高原沟壑区小流域不同地形下土壤性质分布特征[J].自然资源学报,2007,22(6):946-953.
[10] 孙文义,郭胜利.黄土丘陵沟壑区小流域土壤有机碳空间分布及其影响因素[J].生态学报,2011,31(6):1604-1616.
[11] Sun W Y, Shao Q Q, Liu J Y, et al. Assessing the effects of land use and topography on soil erosion on the Loess Plateau in China[J]. Catena, 2014,121:151-163.
[12] Sun W Y, Zhu H H, Guo S L. Soil organic carbon as a function of land use and topography on the Loess Plateau of China[J]. Ecological Engineering, 2015,83:249-257.
[13] 张飞,陈云明,王耀凤,等.黄土丘陵半干旱区柠条林对土壤物理性质及有机质的影响[J].水土保持研究,2010,17(3):105-109.
[14] 杨新国,赵伟,陈林,等.荒漠草原人工柠条林土壤与植被的演变特征[J].生态环境学报,2015,24(4):590-594.
[15] 中国科学院南京土壤研究所.土壤理化分析[M].上海:上海科学技术出版社,1978.
[16] 王绍强,周成虎,李克让,等.中国土壤有机碳库及空间分布特征分析[J].地理学报,2000,55(5):533-544.
[17] Isaaks E H, Srivastava R M. An Introduction to Applied Geostatistics[M]. New York, USA: Oxford University Press, 1989.
[18] 王仁铎,胡光道.线性地质统计学[M].武汉:地质出版社,1988.
[19] Cambardella C A, Moorman T B, Novak J M, et al. Field-scale variability of soil properties in central Iowa soils[J]. Soilence Society of America Journal, 1994,58(5):1501-1511.
[20] 顾春雷,杨漾,朱志春.几种建立DEM模型插值方法精度的交叉验证[J].测绘与空间地理信息,2011,34(5):99-102.
[21] 吕成文,崔淑卿,赵来.基于HNSOTER的海南岛土壤有机碳储量及空间分布特征分析[J].应用生态学报,2006,17(6):1014-1018.
[22] 李龙,姚云峰,秦富仓,等.赤峰市黄花甸子流域土壤有机碳含量的空间变异特征研究[J].环境科学学报,2014,34(3):742-748.
[23] Albaladejo J, Ortiz R, Garcia-Franco N, et al. Land use and climate change impacts on soil organic carbon stocks in semi-arid Spain[J]. Journal of Soils and Sediments, 2013,13(2):265-277.
[24] Köchy M, Wilson S D. Litter decomposition and nitrogen dynamics in aspen forest and forest and mixed-grass prairie[J]. Ecology, 1997,78(3):732-739.
[25] Polyakov V O, Lal R. Soil organic matter and CO2 emission as affected by water erosion on field runoff plots[J]. Geoderma,2008,143(1/2):216-222.
[26] 李嵘.黄土高原坡耕地土壤侵蚀对土壤有机碳的影响[D].北京:中国农业科学院,2008.
[27] 沈艳,马红彬,谢应忠,等.宁夏典型草原土壤理化性状对不同管理方式的响应[J].水土保持学报,2012,26(5):84-89.
[28] 杨文利,朱平宗,闫靖坤.水平阶种植油茶对红壤坡地土壤理化性质的影响[J].水土保持学报,2017,31(5):315-320.
[29] 邱宇洁,许明祥,师晨迪,等.陇东黄土丘陵区坡改梯田土壤有机碳累积动态[J].植物营养与肥料学报,2014,20(1):87-98.
相似文献/References:
[1]袁 可,张 晨,赵建林,等.有限样本下土壤有机碳密度空间分布预测模型对比分析[J].水土保持研究,2024,31(05):173.[doi:10.13869/j.cnki.rswc.2024.05.041]
Yuan Ke,Zhang Chen,Zhao Jianlin,et al.Comparative Analysis on Models for Predicting the Spatial Distribution of Soil Organic Carbon Density with Limited Samples[J].Research of Soil and Water Conservation,2024,31(02):173.[doi:10.13869/j.cnki.rswc.2024.05.041]
[2]沙晋明,陈鹏程,陈松林.土壤有机质光谱响应特性研究[J].水土保持研究,2003,10(02):21.
SHA Jinming,CHEN Pengcheng,CHEN Songlin.Characteristics Analysis of Soil Spectrum Response Resulted From Organic Material[J].Research of Soil and Water Conservation,2003,10(02):21.
[3]李龙,吴丽芝,姚云峰,等.小流域土壤有机碳含量的空间变异特征研究——以内蒙古赤峰市黄花甸子流域为例[J].水土保持研究,2013,20(05):18.
LI Long,WU Li-zhi,YAO Yun-feng,et al.Study on Spatial Variations of Soil Organic Carbon in Small Watershed—Taking Huanghuadianzi Watershed as An Example[J].Research of Soil and Water Conservation,2013,20(02):18.
[4]席小康,朱仲元,郝祥云.锡林河流域土壤有机碳空间变异分析[J].水土保持研究,2017,24(06):97.
XI Xiaokang,ZHU Zhongyuan,HAO Xiangyun.Spatial Variability of Soil Organic Carbon in Xilin River Basin[J].Research of Soil and Water Conservation,2017,24(02):97.
[5]贾国梅,何立,刘潇,等.三峡库区消落带土壤有机碳氧化稳定性特征[J].水土保持研究,2016,23(05):14.
JIA Guomei,HE Li,LIU Xiao,et al.Characteristics of Soil Oxidizable Stable Organic Carbon in Riparian of Three Gorges Reservoir Area[J].Research of Soil and Water Conservation,2016,23(02):14.
[6]苗正红,杨清臣,邱中军,等.基于GIS技术的土地利用变化对表层土壤有机碳储量的影响——以富锦市为例[J].水土保持研究,2015,22(06):19.
MIAO Zhenghong,YANG Qingchen,QIU Zhongjun,et al.Impact of Land Use Change on Soil Organic Carbon Stocks Based on GIS—A Case Study in Fujin City[J].Research of Soil and Water Conservation,2015,22(02):19.
[7]顾成军,史学正,于东升.结合土地利用与克里格插值的区域土壤有机碳空间表征方法[J].水土保持研究,2014,21(02):39.
GU Cheng-jun,SHI Xue-zheng,YU Dong-sheng.Indicating Method on Spatial Distribution of Regional Soil Organic Carbon by Combining Land Use and Kriging[J].Research of Soil and Water Conservation,2014,21(02):39.
[8]柳媛媛,孙本华,皮小敏,等.有机物料输入对关中土碳氮影响的后效作用[J].水土保持研究,2018,25(04):71.
LIU Yuanyuan,SUN Benhua,PI Xiaomin,et al.Post-Effects of Organic Material Input on Soil Carbon and Nitrogen on Anthropogenic Loess Soil in Guanzhong Area[J].Research of Soil and Water Conservation,2018,25(02):71.
[9]沈艳,傅瓦利,蓝家程,等.岩溶山地不同土地利用方式土壤颗粒有机碳和矿物结合态有机碳的分布特征[J].水土保持研究,2012,19(06):1.
SHEN Yan,FU Wa-li,LAN Jia-cheng,et al.Distribution Characteristics of Soil Particulate Organic Carbon and Mineral-associated Organic Carbon of Different Land Use in Karst Mountain[J].Research of Soil and Water Conservation,2012,19(02):1.
[10]陈媛媛,周运超.灰质白云岩土壤有机碳的团聚体保护[J].水土保持研究,2012,19(06):82.
CHEN Yuan-yuan,ZHOU Yun-chao.Protection of Soil Organic Carbon in the Calcite Dolomite Aggregate[J].Research of Soil and Water Conservation,2012,19(02):82.
备注/Memo
收稿日期:2019-05-13 修回日期:2019-06-06 资助项目:山西省自然科学基金(201601D021103); 国家自然科学基金(41401242) 第一作者:栗文玉(1993—),女,山西晋中人,硕士研究生,研究方向为恢复生态研究。E-mail:1508291695@qq.com 通信作者:刘小芳(1981—),女,山西榆次人,博士,讲师,硕士生导师,主要从事植物生态研究。E-mail:liuxiaofang04@163.com