黄土高原典型土壤有机氮组分剖面分布的变化特征

doi:10.3864/j.issn.0578-1752.2011.24.007

中国农业科学 ›› 2011, Vol. 44 ›› Issue (24): 5021-5030.doi: 10.3864/j.issn.0578-1752.2011.24.007

• 土壤肥料·节水灌溉·农业生态环境 • 上一篇下一篇

黄土高原典型土壤有机氮组分剖面分布的变化特征

DANG Ya-Ai, WANG Guo-Dong, LI Shi-Qing

1.1西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室，陕西杨凌712100；2西北农林科技大学理学院，陕西杨凌 712100

收稿日期:2010-12-27 出版日期:2011-12-15 发布日期:2011-03-02
通讯作者: 通信作者李世清，E-mail:sqli@ms.iswc.ac.cn
作者简介:党亚爱，E-mail: dangyaai@126.com
基金资助:
公益性行业科研专项(201103003）、中央高校2009基本科研业务费专项资金资助（QN2009051）、2008校内博士科研启动费（z1110020833）

The Changing Characteristics of Profile Distribution of Soil Organic Nitrogen Component of the Typical Soil Types on the Loess Plateau

1.西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室，陕西杨凌712100
2.西北农林科技大学理学院，陕西杨凌 712100

1.1西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室，陕西杨凌712100；2西北农林科技大学理学院，陕西杨凌 712100

Received:2010-12-27 Online:2011-12-15 Published:2011-03-02

摘要/Abstract

摘要： 【目的】研究黄土高原主要典型区域不同土层土壤有机氮组分分布特征。【方法】根据土壤类型和土地利用方式，分别从黄土高原南北不同典型区域分层（0—10、10—20、20—40、40—60、60—80、80—100、100—120和120—140 cm）采集96个土壤样品，用Bremner法测定土壤有机氮组分含量。【结果】从北到南，土壤中有机氮及各组分含量呈增加趋势，各组分占酸解全氮的比例相对稳定，而酸解全氮占全氮比例在0—40 cm土呈下降趋势，40 cm以下土层趋于稳定；从南到北同层次、相同土地利用方式下有机氮各组分均表现为0—40 cm土层迅速下降，40—80 cm土层缓慢下降，80 cm以下土层基本稳定。不同土壤有机氮各组分在整个剖面上占酸解性全氮的平均比例不同，干润砂质新成土：酸解氨基酸态氮（39.5%）＞酸解氨态氮（32.3%）＞酸解未知态氮（25.7%）＞酸解氨基糖态氮（2.5%）；黄土正常新成土：酸解氨基酸态氮（36.0%）＞酸解氨态氮（35.6%）＞酸解未知态氮（25.3%）＞酸解氨基糖态氮（3.1%）；土垫旱耕人为土：酸解氨态氮（50.6%）＞酸解氨基酸态氮（29.0%）＞酸解未知态氮（17.5%）＞酸解氨基糖态氮（2.8%）。供试土样中除氨基糖态氮外，草地土壤各有机氮组分在0—40 cm土层内均高于同层次的农田土壤，但随土层深度增加，差异性减小。【结论】黄土高原典型区域从北到南土壤各有机氮组分含量呈增加趋势，但在酸解全氮中的比例相对稳定，酸解性全氮占全氮比例呈下降趋势；酸解氨基酸态氮和氨态氮是研究区域最重要土壤有机氮形态；土地利用类型对土壤有机氮组分含量分布存在一定影响，基本呈草地>农田的分布规律。

Abstract: 【Objective】 In order to evaluate the effects of location, soil depth and land use on the contents of soil organic nitrogen (N), the size and composition of soil organic N pool were studied using a large variety of soil profiles sampled on the Loess Plateau. 【Method】 Based on different soil types and land-use patterns, 96 soil samples in 8 depth classes（0-10, 10-20, 20-40, 40-60, 60-80, 80-100, 100-120 and 120-140 cm）were collected from different regions on the Loess Plateau. The method of Bremner was used to test the soil organic N content.【Result】Even with the same land use pattern, the content of soil depth-specific total soil hydrolysable N and its components increased from north to south on the Loess Plateau. The proportion of organic N components within total hydrolysable N was stable. However, the proportion of total hydrolysable N in total soil N significantly decreased within 0-40 cm layers and remained stable below 40 cm. The content of four components significantly decreased within 0-40 cm, slightly decreased within 40-80 cm and remained stable below 80 cm. The percentage of organic N components in total hydrolysable N differed among soil types: amino acid-N (39.5%)＞ammonia N(32.3%)＞HUN fraction(25.7%)＞amino sugar-N(2.5%) in Ust-Sandiic Entisols; amino acid-N (36.0%)＞ammonia N (35.6%)＞HUN fraction (25.3%)＞amino sugar-N (3.1%) in Los-Orthic-Entisol; and ammonia N (50.6%)＞amino acid-N (29.0%)＞HUN fraction (17.5%)＞amino sugar-N (2.8%) in Eum-Orthic Anthrosol. Except amino sugar-N, all the soil organic N components within 0-40 cm in grassland were more than those in cropland; however, the inter-layer variation became smaller with the profiles.【Conclusion】From north to south of the Loess Plateau, the content of organic N and its different forms increased, the proportion of organic N component in total hydrolysable N was stable in the same layer under the same land-use patterns. However, the proportion of total hydrolysable N in total soil N decreased. Amino acid-N and ammonia N were the major forms of the soil organic N on the Loess Plateau. Land-use pattern had a great effect on the content and distribution of N. Both organic N and its components in grassland was more than that in cropland.

Key words: organic nitrogen components, profile, the Loess Plateau, distribution characteristics

党亚爱, 王国栋, 李世清. 黄土高原典型土壤有机氮组分剖面分布的变化特征[J]. 中国农业科学, 2011, 44(24): 5021-5030.

DANG Ya-Ai, WANG Guo-Dong, LI Shi-Qing. The Changing Characteristics of Profile Distribution of Soil Organic Nitrogen Component of the Typical Soil Types on the Loess Plateau[J]. Scientia Agricultura Sinica, 2011, 44(24): 5021-5030.

0
/ / 推荐

导出引用管理器 EndNote|Reference Manager|ProCite|BibTeX|RefWorks

链接本文: https://www.chinaagrisci.com/CN/10.3864/j.issn.0578-1752.2011.24.007

https://www.chinaagrisci.com/CN/Y2011/V44/I24/5021

参考文献

[1]张俊清, 朱平, 张夫道. 有机肥和化肥配施对黑土有机氮形态组成及分布的影响. 植物营养与肥料学报, 2004 , 10(3): 245-249.

Zhang J Q, Zhu P, Zhang F D. Effect of organic manure and chemical fertilizer combined application on the form and distribution of organic nitrogen of black soil. Plant Nutrition and Fertilizer Science, 2004, 10(3): 245- 249. (in Chinese)

[2]谢秋发, 刘经荣, 石庆华, 李木英. 不同施肥方式对水稻产量、吸氮特性和土壤氮转化的影响. 植物营养与肥料学报, 2004, 10(5): 462- 467.

Xie Q F, Liu J R, Shi Q H, Li M Y. Effect of different fertilization patterns on rice yield and nitrogen uptake and transformation in soil. Plant Nutrition and Fertilizer Science, 2004, 10(5): 462-467. (in Chinese)

[3]查春梅, 颜丽, 郝长红, 关连珠. 不同土地利用方式对棕壤有机氮组分及其剖面分布的影响. 植物营养与肥料学报, 2007, 13(1): 22-26.

Zha C M, Yan L, Hao C H, Guan L Z. Effect of different land use systems on the form and distribution of organic nitrogen in brown soil. Plant Nutrition and Fertilizer Science, 2007, 13(1): 22-26. (in Chinese)

[4]Bremner J M. Organic forms of nitrogen // Black C A, ed. Methods of Soil Analysis. Madison: American Society of Agronomy, 1965: 1238-1255.

[5]巨晓棠, 刘学军, 张福锁. 长期施肥对土壤有机氮组成的影响. 中国农业科学, 2004, 37(1): 87-91.

Ju X T, Liu X J, Zhang F S. Effect of long-term fertilization on soil organic nitrogen fractions. Scientia Agricultura Sinica, 2004, 37(1): 87-91. (in Chinese)

[6]孙天聪, 李世清, 邵明安, 赵　坤. 半湿润农田生态系统长期施肥对土壤团聚体中有机氮组分的影响. 应用生态学报, 2007, 18(10): 2233-2238.

Sun T C, Li S Q, Shao M A, Zhao K. Effects of long-term fertilization on distribution of organic nitrogen components in soil aggregates in sub-humid agro ecosystem. Chinese Journal of Applied Ecology, 2007, 18(10): 2233-2238. (in Chinese)

[7]梁国庆, 林葆, 林继雄, 荣向农. 长期施肥对石灰性潮土氮素形态的影响. 植物营养与肥料学报, 2000, 6(1): 3-10.

Liang G Q, Lin B, Lin J X, Rong X N. Effect of long term fertilization on the form of nitrogen in calcareous fluvooaguic soil. Plant Nutrition and Fertilizer Science, 2000, 6(1): 3-10. (in Chinese)

[8]Zhu W X, Carreir M M. Variations of soluble organic nitrogen and microbial nitrogen in deciduous forest soils along an urban-rural gradient. Soil Biology and Biochemistry, 2004, 36: 279-288.

[9]Fabrizzi K P , Morón A , García F O. Soil carbon and nitrogen organic fractions in degraded vs. non-degraded mollisols in Argentina. Soil Science Society of America Journal, 2003, 67(6): 1831.

[10]徐阳春, 沈其荣, 茆泽圣. 长期施用有机肥对土壤及不同粒级中酸解有机氮含量与分配的影响. 中国农业科学, 2002, 35(4): 403-409.

Xu Y C, Shen Q R, Mao S Z. Contents and distribution of forms of organic N in soil and particle size fractions after long-term fertilization. Scientia Agricultura Sinica, 2002, 35(4): 403-409. (in Chinese)

[11]党亚爱, 李世清, 王国栋, 邵明安. 黄土高原典型区域土壤全氮和微生物氮剖面分布特征研究. 植物营养与肥料学报, 2007, 13(6): 1020-1027.

Dang Y A, Li S Q, Wang G D, Shao M A. Distribution characteristics of soil total nitrogen and soil microbial biomass nitrogen for the typical types of soils on the Loess Plateau. Plant Nutrition and Fertilizer Science, 2007, 13(6): 1020-1027. (in Chinese)

[12]李丽霞, 郝明德, 彭令发. 黄土区人工牧草地有机氮组分变化研究. 水土保持研究, 2003, 10(1): 55-59.

Li L X, Hao M D, Peng L F. Research on variety of soil organic nitrogen components in Artificial Herbage land on Loess Plateau. Research of Soil and Water Conservation, 2003, 10(1): 55-59. (in Chinese)

[13]王发刚, 王启基, 王文颖, 景增春. 土壤有机碳研究进展. 草业科学, 2008, 25(2): 48-55.

Wang F G, Wang Q J, Wang W Y, Jing Z C. Research progress on soil organic matter. Pratacultural Science, 2008, 25(2): 48-55. (in Chinese)

[14]李世清, 李生秀, 邵明安, 郭大勇. 半干旱农田生态系统长期施肥对土壤有机氮组分和微生物生物量氮的影响. 中国农业科学, 2004, 37(6): 859-864.

Li S Q, Li S X, Shao M A, Guo D Y. Effects of long-term application of fertilizers on soil organic nitrogen components and microbial bass nitrogen in semiarid farmland ecological system. Scientia Agricultura Sinica, 2004, 37(6): 859-864. (in Chinese)

[15]廖继佩, 林先贵, 曹志洪, 张杨珠. 土壤固定态铵的影响因素. 土壤, 2003(1): 26-31.

Liao J P, Lin X G, Cao Z H, Zhang Y Z. Factors affecting soil-fixed ammonium. Soils, 2003(1): 26-31. (in Chinese)

[16]文启孝, 程励励, 陈碧云. 我国土壤中的固定态铵. 土壤学报, 2000, 37(2): 145-156.

Wen Q X, Cheng L L, Jiang B Y. Fixed ammonium in soil of china. Acta Pedologica Sinica, 2000, 37(2): 145-156. (in Chinese)

[17]刘东生. 中国的黄土堆积. 北京: 科学出版社, 1965.

Liu D S. Loess Accumulation in China. Beijing: Science Press, 1965. (in Chinese)

[18]朱显谟. 黄土高原的形成与整治对策. 水土保持通报, 1991,11(1): 1-8,17.

Zhu X M. The formation of Loess Plateau and its harnessing measures. Bulletin of Soil and Water Conservation, 1991,11(1): 1-8,17. (in Chinese)

[19]彭令发, 郝明德, 来　璐. 土壤有机氮组分及其矿化模型研究. 水土保持学报, 2003, 10(1): 47-52.

Peng L F, Hao M D, Lai L. Soil organic nitrogen compounds and the research of its mineralizable models. Research of Soil and Water Conservation, 2003, 10(1): 47-52. (in Chinese)

[20]朱兆良. 土壤氮素的含量和形态//文启孝. 中国土壤氮素. 南京: 江苏科学技术出版社, 1992: 3-26.

Zhu Z L. Content and forms of soil nitrogen//Wen Q X. Nitrogen in Soil of China. Nanjing: Jiangsu Science and Technology Press, 1992: 3-26. (in Chinese)

[21]董晓玉, 傅华, 李旭东, 牛得草, 郭丁, 李晓东. 放牧与围封对黄土高原典型草原植物生物量及其碳氮磷贮量的影响. 草业科学, 2010, 19(2): 175-182.

Dong X Y, Fu H, Li X D, Niu D C, Guo D, Li X D. Effects on plant biomass and CNP contents of plants in grazed and fenced steppe grasslands of the Loess Plateau. Acta Prataculturae Sinica, 2010, 19(2): 175-182. (in Chinese)

[22]Stevenson F J. Organic forms of soil nitrogen//Stevenson F J, ed. Nitrogen in Agricultural Soil. American Society of Agronomy, Madison, Wisconsin.1982: 67-122.

黄土高原典型土壤有机氮组分剖面分布的变化特征

The Changing Characteristics of Profile Distribution of Soil Organic Nitrogen Component of the Typical Soil Types on the Loess Plateau

PDF

赞

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

Metrics

本文评价

推荐阅读 0