玉米秸秆及其生物炭对东北黑土溶解有机质特性的影响

张海晶; 王少杰; 田春杰; 罗莎莎

doi:10.13870/j.cnki.stbcxb.2021.02.032

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玉米秸秆及其生物炭对东北黑土溶解有机质特性的影响

更新时间：2025-03-12

- 玉米秸秆及其生物炭对东北黑土溶解有机质特性的影响
- Effects of Maize Straw and Its Biochar on the Dissolved Organic Matter Characteristics of Black Soil in Northeastern China
- 水土保持学报 2021年35卷第2期页码：243-250
- 作者机构：
  
  1. 吉林农业大学资源与环境学院, 吉林省商品粮基地土壤资源可持续利用重点实验室,长春,130118
  2. 中国科学院东北地理与农业生态研究所, 黑土区农业生态重点实验室,长春,130102
- 作者简介：
  
  [ "张海晶(1996—),女,在读硕士,主要从事土壤养分循环研究。E-mail:zhj19960717@163.com" ]
- 基金信息：
  
  国家重点研发计划项目（2017YFD0200100）吉林省自然科学基金项目（20200201017JC，20200201209JC）国家自然科学基金项目（41907081，41701332）
- DOI：10.13870/j.cnki.stbcxb.2021.02.032
  中图分类号： S153;S181
- 纸质出版：2021
- 稿件说明：
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张海晶, 王少杰, 田春杰, 等. 玉米秸秆及其生物炭对东北黑土溶解有机质特性的影响[J]. 水土保持学报, 2021,35(2):243-250.

ZHANG Haijing, WANG Shaojie, TIAN Chunjie, et al. Effects of Maize Straw and Its Biochar on the Dissolved Organic Matter Characteristics of Black Soil in Northeastern China[J]. 2021, 35(2): 243-250.
张海晶, 王少杰, 田春杰, 等. 玉米秸秆及其生物炭对东北黑土溶解有机质特性的影响[J]. 水土保持学报, 2021,35(2):243-250. DOI： 10.13870/j.cnki.stbcxb.2021.02.032.

ZHANG Haijing, WANG Shaojie, TIAN Chunjie, et al. Effects of Maize Straw and Its Biochar on the Dissolved Organic Matter Characteristics of Black Soil in Northeastern China[J]. 2021, 35(2): 243-250. DOI： 10.13870/j.cnki.stbcxb.2021.02.032.

摘要

以典型东北黑土为研究对象，连续3年（2016—2018年）在吉林省长春市中国科学院东北地理与农业生态研究所长春综合农业实验站开展田间定位试验，研究生物炭（BR）、秸秆（SR）以及生物炭和秸秆联合施用（BS）对土壤理化性质和溶解有机质（DOM）特性的影响。结果表明：与对照（CK）相比，BR、SR和BS处理显著增加玉米产量和生物量、土壤团聚体平均重量直径以及亮氨酸氨基肽酶活性。此外，与CK相比，BR显著降低腐殖化指数（HIX）10.0%，显著增加活性有机碳和速效磷含量，增幅分别达35.6%和51.3%；SR显著增加激发波长为355 nm时发射波长为440~470 nm范围内最大荧光强度（Fn（355））、HIX、DOM在254 nm处的吸光度值与溶解有机碳浓度的比值（SUVA254）和全氮/全磷，增幅分别达43.6%，4.1%，45.5%和18.8%；BS显著提高土壤pH、有机碳/全磷、速效钾含量和DOM在250 nm处与365 nm处吸光度值的比值（E2/E3）。总体上，施用生物炭可降低DOM腐殖化程度和复杂性，但会提高土壤活性有机碳含量，而秸秆还田可增加DOM腐殖化程度和复杂性。

Abstract

A three-year (2016—2018) field trial was conducted at the Changchun Comprehensive Experiment Station of the Northeast Institute of Geography and Agroecology

Chinese Academy of Science

which is located in Changchun city

Jilin province

China. The purpose of this study was to investigate the effects of biochar (BR)

straw (SR) and combination of biochar and straw (BS) on physicochemical properties and dissolved organic matter (DOM) characteristics of black soil. The results showed that the BR

SR and BS treatments significantly increased the maize yield and biomass

mean weight diameter of soil aggregates

and leucine amino peptidase activity compared with the control (CK). In addition

compared with the CK treatment

the BR treatment significantly reduced the humification index (HIX) by 10.0% and significantly increased the contents of KMnO4-oxidizable carbon and available phosphorus by 35.6% and 51.3%

respectively. Meanwhile

compared with the CK treatment

the SR treatment significantly increased the maximum fluorescence intensity of emission wavelengths of 440~470 nm

when excitation wavelength was 355 nm (Fn (355))

HIX

the ratio of the absorbance at 254 nm to the dissolved organic carbon concentration (SUVA254) and total nitrogen/total phosphorus by 43.6%

4.1%

45.5% and 18.8%

respectively. Moreover

the BS treatment significantly increased soil pH

organic carbon/total phosphorus

available potassium contents and the ratio of absorbance at 250 nm to absorbance at 365 nm (E2/E3) compared with the CK treatment. In general

biochar application could reduce the humification degree and complexity of DOM and improve the content of soil labile organic carbon

whereas straw return could enhance the humification degree and complexity of DOM.

关键词

Keywords

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