Distribution of Soil Organic Carbon and Nitrogen in Density Fractions on Black Soil as Affected by Fertilization

LU Si-jia; HAN Xiao-zeng; YOU Meng-yang; ZHU Wei-wei

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Distribution of Soil Organic Carbon and Nitrogen in Density Fractions on Black Soil as Affected by Fertilization

更新时间：2024-11-07

- Distribution of Soil Organic Carbon and Nitrogen in Density Fractions on Black Soil as Affected by Fertilization
- Vol. 25, Issue 2, (2011)
- 作者机构：
  
  1. 中国科学院东北地理与农业生态研究所黑土区农业生态院重点实验室,哈尔滨,150081
  2. 东北农业大学,哈尔滨,1500302. 中国科学院东北地理与农业生态研究所黑土区农业生态院重点实验室,哈尔滨,150081
- 作者简介：
- 基金信息：
- DOI：
  CLC： S153.6S147.2
- Published：2011
- 稿件说明：
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LU Si-jia, HAN Xiao-zeng, YOU Meng-yang, et al. Distribution of Soil Organic Carbon and Nitrogen in Density Fractions on Black Soil as Affected by Fertilization[J]. 2011, 25(2).
DOI：

LU Si-jia, HAN Xiao-zeng, YOU Meng-yang, et al. Distribution of Soil Organic Carbon and Nitrogen in Density Fractions on Black Soil as Affected by Fertilization[J]. 2011, 25(2). DOI：

摘要

以中国科学院海伦农业生态实验站的长期定位施肥土壤为基础

研究长期施肥对黑土密度分组中碳和氮的影响。结果表明:氮肥能够增加土壤有机碳和全氮含量

但不如NPKOM效果明显。土壤中各组分有机碳含量的变化趋势为重组>游离态轻组>闭蓄态轻组

三者之间差异达极显著水平(p<0.01)

重组有机碳的含量最大值为23.72 g/kg

而闭蓄态轻组有机碳的平均值仅为0.69 g/kg;全氮的含量的变化呈重组最大

且极显著大于闭蓄态轻组和游离态轻组

后两者之间无明显差异。不同组分中有机碳浓度和全氮浓度的变化规律一致

为游离态轻组>闭蓄态轻组>重组

且游离态轻组明显大于其它两个组分。NPKOM处理的闭蓄态轻组和重组组分中的有机碳浓度和全氮浓度大于其它施肥处理。碳氮比的变化趋势为游离态轻组>闭蓄态轻组>土壤>重组

重组和土壤中

NPKOM处理的碳氮比最低

CK处理的碳氮比最大

可见有机肥的施用加快了土壤碳的周转速度。

Abstract

The experiment was carried out to study the effects of long-term fertilization on the distribution of soil organic carbon and nitrogen in density fractions on black soil in Hailun national field research station.Results showed that: the effect of N fertilizer on the organic carbon and nitrogen of the primary soil was positive

but which was less obvious than that of NPKOM.The trend of the amount of soil organic carbon

which existed in the fraction of soil

was that HF(heavy fraction) >LF(free light fraction)>...

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Related Author

HAO Xiaoyu1

MA Xingzhu2

ZHOU Baoku2

Related Institution

Heilongjiang Academy of Agricultural Sciences Postdoctoral Programme

Institute of Soil and Fertilizer and Environment Resources，Heilongjiang Academy of Agricultural Sciences

Key Laboratory of Soil Environment and Plant Nutrition

Heilongjiang Province Fertilizer Engineering Research Center

Institute of Geography, Fujian Normal University

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