|Table of Contents|

Spatial Distribution and Influencing Factors Analysis of Cropland Soil Total Nitrogen in Huangshui River Basin(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年16
Page:
131-138
Research Field:
Publishing date:

Info

Title:
Spatial Distribution and Influencing Factors Analysis of Cropland Soil Total Nitrogen in Huangshui River Basin
Author(s):
DAI Zijun1ZHAO Xia1SHI Pingchao12
(1.Physical Geography and Environmental Process Key Laboratory of Qinghai Province,Qinghai Normal University,Xining,Qinghai 810008;2.Agriculture and Animal Husbandry Science and Technology Bureau of Songtao Miao Autonomous County,Songtao,Guizhou 554100)
Keywords:
soil total nitrogencropland soilGeo-statisticsspatial distributioninfluencing factors
PACS:
-
DOI:
10.11937/bfyy.20170507
Abstract:
Soil total nitrogen (TN) is one of the important indicators reflecting soil quality.Huangshui River Basin is the main grain producing area in Qinghai Province.At present,the soil research on Huangshui River Basin was mainly concentrated in the evaluation of soil nutrient in cropland,soil microbial dynamic distribution research.Studying for spatial distribution and influencing factors of cropland TN content was rarely reported in this Basin.Therefore,based on the 38 topsoil (0-20 cm) TN data of existing literatures on cropland in Huangshui River Basin,combined traditional statistics and geostatistics,analyzed spatial distribution and influencing factors of cropland topsoil TN in Huangshui River Basin.The result indicated that the mean TN content was about 1.33 g?kg-1,the coefficient of variation was 47.37%,belonged to a moderate variation.And TN content of spatial distribution decreased from north to south while an alternative trends of first increasing and then decreasing from east to west,regarding to Ordinary Kriging analysis.As for the distribution trends of TN content regarding to national standard,high-level value (>1.50 g?kg-1) was mainly distributed in the high-altitude of Datong county and Haiyan county,low-level value (<1.00 g?kg-1) was mainly distributed in the low-altitude of Minhe county and Huangzhong county.Among which,about 65.5% area of the basin reached beyond the average level (1.30 g?kg-1).Temperature,altitude and precipitation were three main influencing factors of TN content distribution in this basin,according to correlation analysis,variance analysis and regression analysis,which accounts for 35.7%,29.0% and 21.3% of TN variability,respectively,soil type and fertilization showed certain amount of correlation with TN while very low impacts value due to data lacking.The results showed that the spatial distribution of cropland topsoil TN in Huangshui River Basin,provided useful reference for the scientific management of cropland,and provided a basis for rational fertilization work.

References:

?

[1]黄昌勇.土壤学[M].北京:中国农业出版社,2000:32-49

[2]KUCHARIK C J,BRYE K R,NORMAN J M,et al.Measurements and modeling of carbon and nitrogen cycling in agroecosystems of southern Wisconsin:Potential for SOC sequestration during the next 50 years[J].Ecosystems,20014:237-258.

[3]王淑英,路苹,王建立,.不同研究尺度下土壤有机质和全氮的空间变异特征:以北京市平谷区为例[J].生态学报,2008,28(10):4957-4964.

[4]曹祥会,龙怀玉,周脚根,等.河北省表层土壤有机碳和全氮空间变异特征性及影响因子分析[J].植物营养与肥料学报,2016,22(4):937-948.

[5]YEMEFACK M,ROSSITER D G,NJOMGANG R.Multi-scale characterization of soil variability within an agricultural landscape mosaic system in southern Cameroon[J].Geoderma,2005,125(1/2):117-143.

[6]赵小敏,邵华,石庆华,.30年江西省耕地土壤全氮含量时空变化特征[J].土壤学报,2015,52(4):723-730.

[7]周稀,邓欧平,潘洪旭,.基于GIS的西河流域土壤氮素空间变异特征及其影响因素研究[J].西北农业学报,2016,29(4):896-902.

[8]成忠,上官周平.土壤空间变异性研究评述[J].生态环境,2003,12(3):371-375.

[9]徐剑波,宋立生,彭磊,.土壤养分空间估测方法研究综述[J].生态环境学报,2011,20(8):1379-1386.

[10]程先富,史学正,于东升,.基于GIS的土壤全氮空间分布估算:以江西省兴国县为例[J].应用与环境生物学报,2007,26(1):110-116.

[11]庞夙,李廷轩,王永东,.县域农田土壤氮素空间分布特征及其影响因素[J].应用生态学报,2010,21(6):1497-1503.

[12]赵燕婷,常庆瑞,李志鹏,.渭北台塬区耕地土壤有机质与全氮空间特征[J].农业机械学报,2014,45(8):140-148.

[13]DARILEK J L,HUANG B,WANG Z G,et al.Changes in soil fertility parameters and the environmental effects in a rapidly developing region of China[J].Agriculture,Ecosystems & Environment,2009,129:286-292.

[14]邢喆,黄标,董成森,.江苏省沭阳县农田土壤有机质和全氮的时空变异及其影响因素[J].土壤,2013,45(3):405-411.

[15]陈涛,常庆瑞,刘钊,.耕地土壤有机质与全氮空间变异性对粒度的响应研究[J].农业机械,2013,44(10):122-129.

[16]赵业婷,常庆瑞,李志鹏,.基于Cokriging的耕层土壤全氮空间特征及采样数量优化研究[J].土壤学报,2014(2):415-422.

[17]陈占全,薛泉宏,张荣.湟水流域农田土壤养分及肥力评价分析[J].青海科技,2003(2):29-32.

[18]周宏伟,梁建芳.湟中县域土壤养分变化分析[J].青海林业技,2014(3):4-7.

[19]赵串串,王湜,孙根行,.青海省湟水河流域退耕还林地土壤可蚀性研究[J].林业资源管理,2010(2):73-77.

[20]陶炳德,沙占江,郭丽霞,.137Cs示踪法研究湟水上游和布哈河下游区域土壤侵蚀强度[J].干旱区地理,2013,36(6):997-1005.

[21]孙小凤,阿继军.青海湟水流域农田典型土壤微生物动态变化定位研究[J].甘肃农业科技,2003(9):30-34.

[22]张荣,陈占全,李松龄.湟水流域农田土壤真菌数量分布研究[J].青海农业科学,2003(2):4-6.

[23]青海省农业资源区划办公室.青海土壤[M].北京:中国农业出版社,1997:294.

[24]赵明松,张甘霖,李德成,.江苏省土壤有机质变异及其主要影响因素[J].生态学报,2013,33(16):5058-5066.

[25]熊有平.湟水流域川水区、浅山区、脑山区和石山林区划分及特点[J].水利科学与经济,2012,18(2):14-15.

[26]李丽霞,郜艳军,张瑛.哑变量在统计分析中的应用[J].数理医学杂志,2006,19(1):51-53.

[27]汤国,杨昕.地理信息系统空间分析实验教程(第二版)[M].北京:科学出版社,2012:452.

[28]刘妤.甘肃省土壤全氮含量空间分布及与土壤利用的关系[D].兰州:甘肃农业大学,2010.

[29]张鹏,张涛,陈年来.祁连山北麓山体垂直带土壤碳氮分布特征及影响因素[J].应用生态学,2009,20(3):518-524.

[30]周俊国,杨鹏鸣.不同肥料对菜地土壤有机质和全氮含量的影响[J].北方园艺,2012(8):152-154

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Last Update: 2017-08-31