Spatial Distribution Characteristics and Influencing Factors of Soil Nitrogen Reserves in Longxi County

REN Jianxin; TANG Liang; HE Mingzhu; HAN Guojun; ZHANG Li

doi:10.13870/j.cnki.stbcxb.2020.06.044

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Spatial Distribution Characteristics and Influencing Factors of Soil Nitrogen Reserves in Longxi County

更新时间：2025-03-12

- Spatial Distribution Characteristics and Influencing Factors of Soil Nitrogen Reserves in Longxi County
- Vol. 34, Issue 6, Pages: 318-324(2020)
- 作者机构：
  
  1. 甘肃农业大学资源与环境学院,兰州,730070
  2. 中国科学院西北生态环境资源研究院沙坡头沙漠试验研究站,兰州,730000
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2020.06.044
  CLC： S153.6
- Published：2020
- 稿件说明：
移动端阅览
REN Jianxin, TANG Liang, HE Mingzhu, et al. Spatial Distribution Characteristics and Influencing Factors of Soil Nitrogen Reserves in Longxi County[J]. 2020, 34(6): 318-324.
DOI：

REN Jianxin, TANG Liang, HE Mingzhu, et al. Spatial Distribution Characteristics and Influencing Factors of Soil Nitrogen Reserves in Longxi County[J]. 2020, 34(6): 318-324. DOI： 10.13870/j.cnki.stbcxb.2020.06.044.

摘要

以陇西县600份土壤全氮含量数据为基础，应用地统计学研究陇西县土壤氮素的空间分布特征并计算了该区域的氮储量，采用相关性分析、主成分分析等方法探讨了影响全氮空间分布的影响因素。结果表明，陇西县土壤全氮含量为（0.734±0.306） g/kg，变异系数属于中等程度变异；氮密度平均值为0.091 kg/m2，氮储量为7.6×106 kg，其中0—10，10—30，30—50 cm土层氮储量分别占到0—50 cm土层氮储量的35.97%，7.06%，56.97%。陇西县土壤全氮含量及氮储量空间分布相似，主要呈斑块状分布，高值区主要集中在研究区南部的首阳镇、和平乡，低值区主要集中在研究区东部的权家湾乡；从垂直分布来看，土壤全氮含量随着土层深度的增加而减小。土壤表层10 cm的全氮含量与纬度、高程、坡向、坡度、降雨、地温、气温呈极显著或显著相关，但随着土层深度的增加，土壤全氮含量与环境因子相关性逐渐减弱；主成分分析表明，经度、纬度、降雨、地温、气温、相对湿度、蒸发量是影响土壤全氮含量的重要环境因子；通过聚类分析可以把陇西县土壤分成5类，除第Ⅳ类土壤全氮含量极显著高于其他4类土壤外，其余4类土壤全氮含量均无极显著差异，土壤全氮含量属于第五类标准的土壤占到了全部样地的70.35%。

Abstract

Based on the total nitrogen content data of 600 samples in Longxi County

the spatial distribution characteristics of soil nitrogen in Longxi County were studied by geostatistics and the nitrogen reserves were calculated. The results showed that the total nitrogen content in Longxi County was (0.734±0.306) g/kg

and the coefficient of variation was moderate. The average nitrogen density was 0.091 kg/m2

and the nitrogen reserves were 7.6×106 kg. The nitrogen reserves in the 0—10

10—30

and 30—50 cm soil layers accounted for 35.97%

7.06%

and 56.97% of the nitrogen reserves in the 0—50 cm soil layer respectively. The spatial distribution of total nitrogen content and nitrogen reserves in Longxi County was similar

mainly distributed in patches. The high-value area was mainly concentrated in Shouyang town and Heping Township in the south of the study area

while the low-value area was mainly concentrated in Guanjiawan Township in the east of the study area. From the vertical distribution

the total nitrogen content of soil decreased with the increase of soil depth. The total nitrogen content of 10 cm in the soil surface was extremely significantly or significantly correlated with latitude

elevation

slope direction

slope

rainfall

ground temperature

and air temperature. Principal component analysis showed that longitude

latitude

rainfall

ground temperature

air temperature

relative humidity

and evaporation could be considered as important environmental factors affecting the total nitrogen content of soil. Through clustering analysis can divide the Longxi County soil into five types. The total nitrogen content of class IV soil was significantly higher than the other four types of soil

and no extreme significant difference was observed among the rest four types of soil total nitrogen content. Soils contain total nitrogen content belong to the fifth class standard accounted for 70.35% of the total sample area.

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references

陈肖,张世熔,黄丽琴,等.成都平原土壤氮素的空间分布特征及其影响因素研究[J].植物营养与肥料学报,2007,13(1):1-7.

张晗,欧阳真程,赵小敏,等.江西省耕地土壤氮素空间变异特征及其主控因素[J].水土保持学报,2018,32(5):304-312.

高丽娟,吕光辉,王芸,等.艾比湖地区盐生植物群落土壤氮素的垂直分布特征[J].干旱区研究,2014,31(1):51-56.

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

刘志鹏.黄土高原地区土壤养分的空间分布及其影响因素[D].陕西杨凌:中国科学院研究生院(教育部水土保持与生态环境研究中心),2013.

张泽宇,李占斌,李鹏,等.汉江小流域土壤氮素空间分布特征及影响因素[J].水土保持研究,2017,24(4):46-52,58.

李龙,姚云峰,秦富仓,等.黄花甸子流域土壤全氮含量空间分布及其影响因素[J].应用生态学报,2015,26(5):1306-1312.

贺敬滢,张桐艳,李光录.丹江流域土壤全氮空间变异特征及其影响因素:以陕南张地沟小流域为例[J].中国水土保持科学,2012,10(3):81-86.

罗由林,李启权,王昌全,等.川中丘陵县域土壤氮素空间分布特征及其影响因素[J].环境科学,2015,36(2):652-660.

杨丽霞,陈少锋,安娟娟,等.陕北黄土丘陵区不同植被类型群落多样性与土壤有机质、全氮关系研究[J].草地学报,2014,22(2):291-298.

Xu Y M, Wang X X, Bai J H, et al. Estimating the spatial distribution of soil total nitrogen and available potassium in coastal wetland soils in the Yellow River Delta by incorporating multi-source data[J].Ecological Indicators,2020,111:106002.

Bai J H, Ouyang H, Deng W, et al. Spatial distribution characteristics of organic matter and total nitrogen of marsh soils in river marginal wetlands[J].Geoderma,2005,124(1/2):181-192.

赵小敏,邵华,石庆华,等.近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.

闵惠琳.元阳梯田生态系统水体氮素时空分布特征研究[D].昆明:西南林业大学,2018.

马坤,张颖,唐素贤,等.若尔盖高寒湿地土壤全氮空间分布特征[J].生态学杂志,2016,35(8):1988-1995.

张向东,翟丙年,张晓虎.商洛中药材种植区土壤肥力诊断与综合评价[J].西北农林科技大学学报(自然科学版),2011,39(6):135-142.

丁丹丹,李西文,陈士林,等.优质中药材栽培合理施肥探讨[J].世界科学技术-中医药现代化,2018,20(7):78-86.

汪琦.陇西县中药材地膜覆盖育苗技术要点[J].甘肃农业科技,2016,482(2):97-98.

王丹,侯俊玲,万春阳,等.中药材施肥研究进展[J].土壤通报,2011,42(1):225-228.

陇西县志编纂委员会.陇西县志[M].兰州:甘肃人民出版社,1990.

苗正红,邱中军,毕强,等.基于半变异函数的土壤有机碳空间预测方法[J].地理空间信息,2015,13(6):68-70,13.

张树清.甘肃农田氮磷钾养分资源特征研究[D].兰州:甘肃农业大学,2001.

朱玉杰,董希斌.大兴安岭用材林不同强度采伐后土壤模糊聚类分析[J].东北林业大学学报,2014,42(10):65-71.

于洋.陕西省耕地土壤养分状况及耕地地力评价研究[D].陕西杨凌:西北农林科技大学,2016.

张建杰,李富忠,胡克林,等.太原市农业土壤全氮和有机质的空间分布特征及其影响因素[J].生态学报,2009,29(6):3163-3172.

李爽,郭聃,窦森,等.吉林省耕地表层土壤氮密度分布特征及其影响因素[J].土壤通报,2017,48(6):1385-1391.

白莹,薛山,鲁善海,等.沙颍河流域平原区土壤氮空间分布特征及影响因素研究[J].南京大学学报(自然科学),2016,52(1):65-76.

张春华,王宗明,任春颖,等.松嫩平原玉米带土壤碳氮储量的空间特征[J].应用生态学报,2010,21(3):631-639.

Yang Y H, Ma W H, Mohammat A, et al. Storage, patterns and controls of soil nitrogen in China[J].Pedosphere,2007,17(6):776-785.

王祎.清水县耕层主要养分空间变异与肥力等级研究[D].兰州:甘肃农业大学,2012.

刘金兰.浅谈几种不同土壤类别的改良利用方法[J].农业科技与信息,2014(14):15-16.

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