Spatial Variation of Soil Moisture Content and Reasonable Sampling Number in Potato Field Under Condition of Sprinkler Irrigation

Li Tao; Zhang Jianfeng; Xiong Siyuan; Zhang Ruixi

doi:10.13961/j.cnki.stbctb.2020.02.033

您当前的位置：

首页 >

文章列表页 >

Spatial Variation of Soil Moisture Content and Reasonable Sampling Number in Potato Field Under Condition of Sprinkler Irrigation

- Spatial Variation of Soil Moisture Content and Reasonable Sampling Number in Potato Field Under Condition of Sprinkler Irrigation
- Bulletin of Soiland Water Conservation Vol. 40, Issue 2, Pages: 222-231(2020)
- 作者机构：
  
  西安理工大学水利水电学院,陕西,西安,710048
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2020.02.033
  CLC： S274.3
- Published：2020
- 稿件说明：
移动端阅览
Li Tao, Zhang Jianfeng, Xiong Siyuan, et al. Spatial Variation of Soil Moisture Content and Reasonable Sampling Number in Potato Field Under Condition of Sprinkler Irrigation[J]. Bulletin of Soiland Water Conservation, 2020, 40(2): 222-231.
DOI：

Li Tao, Zhang Jianfeng, Xiong Siyuan, et al. Spatial Variation of Soil Moisture Content and Reasonable Sampling Number in Potato Field Under Condition of Sprinkler Irrigation[J]. Bulletin of Soiland Water Conservation, 2020, 40(2): 222-231. DOI： 10.13961/j.cnki.stbctb.2020.02.033.

摘要

[目的

]

研究马铃薯田间不同深度土壤含水率的空间分布规律及其合理采样数，为大型喷灌条件下精准灌溉制度的制定提供科学依据。[方法

]

在约34 hm

的农田中采用固定与随机相结合的方法布设了116个取样点，分别测定了0-20 cm和20-40 cm深度的土壤含水率，采用经典统计学与地统计学相结合的方法，研究喷灌前后马铃薯生长期内土壤含水率的空间分布特征及其合理采样数。[结果

]

0-20 cm深度灌溉前和灌溉后的平均土壤含水率的变化范围7.61%~13.79%，20-40 cm深度灌溉前和灌溉后的平均土壤含水率的变化范围为8.71%~16.12%；总体上土壤含水率变异系数变化范围为16.47%~28.55%，均表现为中等程度的变异性，20-40 cm深度的土壤含水率变异程度略高于表层。连续2 a马铃薯各时期土壤含水率总体表现为中等程度的空间相关性，土壤含水率空间变异受随机因素与结构因素共同影响。田间水分总体上呈斑块状分布，灌水后期土壤含水率的分布较灌前更为分散。地统计学得出田间合理采样数为87个。[结论

]

在大型喷灌条件下马铃薯田间土壤含水量存在中等程度的空间变异性，并且地统计学与传统统计学两种方法均适用于确定农田平均土壤含水率的最优采样数量。

Abstract

[Objective] The spatial distribution and reasonable sampling of soil moisture content in potato field were studied

in order to provide scientific proof for precision irrigation system under the condition of large sprinkler irrigation.[Methods] A total of 116 sample points was selected in a 34 hm2 farmland by the combination of fixed and random sampling. The soil moisture content of 0-20 cm and 20-40 cm depth was measured respectively. The traditional statistics combined with geostatistics were used to analyze the characteristic of the spatial distribution of soil moisture content and the reasonable sampling number.[Results] The soil water content at 0-20 cm depth before and after irrigation ranged from 7.61% to 13.79%

the soil water content at 20-40 cm depth before and after irrigation was ranged from 8.71% to 16.12%. The overall variation coefficient of soil moisture content was 16.47%~28.55%

showing a moderate variability

and the variation of soil water content at 20-40 cm depth was slightly higher than that of the surface layer. The soil moisture content of potato at different times in successive two years showed a moderate spatial correlation

and the spatial variation of soil moisture content was influenced by random factors and structural factors. The distribution of soil moisture in the field was patchy

and soil mositure in the late irrigation period was more disordered than that before irrigation. According to geostatistics

the number of reasonable sampling in the field was 87.[Conclusion] Under the condition of large-scale sprinkler irrigation

the soil moisture content of potato field shows a moderate variability

and both geostatistics and traditional statistics methods are suitable for determining the optimal sampling number of soil moisture content in the potato field.

关键词

Keywords

references

Huisman J A, Sperl C, Bouten W, et al. Soil water content measurements at different scales:Accuracy of time domain reflectometry and ground-penetrating radar[J]. Journal of Hydrology, 2001,245(1/4):48-58.

李宝富,熊黑钢,龙桃,等.新疆奇台绿洲农田灌溉前后土壤水盐时空变异性研究[J].中国沙漠,2012,32(5):1369-1378.

邢旭光,赵文刚,柳烨,等.猕猴桃果园不同采样密度下土壤含水率空间变异性研究[J].农业机械学报,2015,46(8):138-145.

任彦秋,李涛,冷栋,等.干旱区葡萄园土壤含水率时空变异性研究[J].水力发电学报,2016,35(3):47-55.

张仁铎,空间变异理论及应用[M].北京:科学出版社,2005.

Famiglietti J S, Rudnicki J W, Rodell M. Variability in surface moisture content along a hill slope transect:Rattlesnake Hill,Texas[J]. Journal of Hydrology, 1998,210(1/4):259-281.

蒋超,钱亦兵,杨海峰,等.古尔班通古特沙漠南缘浅层风沙土含水量空间变异[J].干旱区研究,2009,26(4):519-525.

Andrew W W, Cunter B, Rodger B G. Geostatistical characterisation of soil moisture pattens in Tarrawarra catchment[J]. Journal of Hydrology, 1998,205(1/2):20-37.

Fitzjohn C,Ternan J L,Williams A G. Soil moisture variability in a semi-arid gully catchment:Implications for runoff and erosion control[J]. Caterna, 1998,32(1):55-70.

Petrone R M, Price J S, Carey S K, et al. Statistical characterization of the spatial variability of soil moisture in a cutover peatland[J]. Hydrological Processes, 2010,18(1):41-52.

王改改,魏朝富,吕家恪.四川盆地丘陵区土壤水分空间变异及其时间稳定性分析[J].山地学报,2009,27(2):211-216.

Minha C, Jennifer M J. Soil moisture variability of root zone profiles within SMEX02 remote sensing footprints[J]. Advances in Water Resources, 2007,30(4):883-896.

Brocca L, Morbidelli R, Melone F, et al. Soil moisture spatial variability in experimental areas of Central Italy[J]. Journal of Hydrology(Amsterdam), 2007,333(2/4):356-373.

Liao Kaihua, Zhou Zhiwen, Lai Xiaoming, et al. Evaluation of different approaches for identifying optimal sites to predict mean hillslope soil moisture content[J]. Journal of Hydrology, 2017,547(4),10-20.

Wang Jinman, Yang Ruixuan, Bai Zhongke. Spatial variability and sampling optimization of soil organic carbon and total nitrogen for Minesoils of the Loess Plateau using geostatistics[J]. Ecological Engineering, 2015,82(9):159-164.

齐雁冰,常庆瑞,刘梦云,等.县域农田土壤养分空间变异及合理样点数确定[J].土壤通报,2014,45(3):556-561.

谢宝妮,常庆瑞,秦占飞.县域土壤养分离群样点检测及其合理采样数研究[J].干旱地区农业研究,2012,30(2):56-61.

戚春华.干旱半干旱地区牧草喷灌均匀特性与管网系统优化研究[D].北京:北京林业大学,2007.

赵文举,李晓萍,范严伟,等.西北旱区压砂地土壤水分的时空分布特征[J].农业工程学报,2015,31(17):144-151.

李宝富,熊黑钢,张建兵,等.干旱区农田灌溉前后土壤水盐时空变异性研究[J].中国生态农业学报,2011,19(3):491-499.

李芳松,雷晓云,陈大春,等.膜下滴灌棉田土壤水分空间变异规律研究[J].灌溉排水学报,2010,29(6):68-71.

Views

1492

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Impacts of rainfall and vegetation on soil erosion in Dabie Mountains forest reform area

Spatial Variation of Soil Inorganic Phosphorus Forms and Soil Enzyme Activities Under Different Land Use Types

A Study on Spatial Variation of Geomorphologic Fractal Characters in Dali River Watershed

Spatial Variability of Soil Nutrients Based on GIS and Geostatistics -A Case Study of 6 Townships in Lingyuan City,Liaoning Province

Effects of Supplementary Irrigation on Potato Yield and Water Use Efficiency in Semi-Arid Area of Gansu Province

Related Author

Li Gao

Luo Minxuan

Huo Zhitao

Chen Rui

Peng Yi

Wu Xin

Li Zhen

Xiang Kui

Related Institution

Huangshan Observation and Research Station for Land-water Resources

Changsha General Survey of Natural Resources Center， China Geological Survey， Ningxiang

Department of Life Science,Longdong University

College of Life and Environment Science, Wenzhou University

State Key Laboratory of Soil Erosion and Dry Farming on Loess Plateau,Yangling

⁰