[1]徐莹莹,王俊河,刘玉涛,等.秸秆还田深度对土壤有机质含量及酶活性的影响[J].黑龙江农业科学,2017,(11):22-25.[doi:10.11942/j.issn1002-2767.2017.11.0022]
　XU Ying-ying,WANG Jun-he,LIU Yu-tao,et al.Effect of Straw Returning Depth on Soil Organic Matter Content and Enzyme Activity[J].HEILONGJIANG AGRICULTURAL SCIENCES,2017,(11):22-25.[doi:10.11942/j.issn1002-2767.2017.11.0022]
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秸秆还田深度对土壤有机质含量及酶活性的影响

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2017年11期 页码: 22-25 栏目: 出版日期: 2017-11-10
Title:
Effect of Straw Returning Depth on Soil Organic Matter Content and Enzyme Activity
文章编号:
1002-2767（2017）11-0022-04
作者:
徐莹莹; 王俊河; 刘玉涛; 王宇先; 高 盼; 杨慧莹
黑龙江省农业科学院 齐齐哈尔分院，黑龙江 齐齐哈尔 161006
Author(s):
XU Ying-ying; WANG Jun-he; LIU Yu-tao; WANG Yu-xian; GAO Pan; YANG Hui-ying
Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences，Qiqihar，Heilongjiang 161006
关键词:
秸秆还田; 还田深度; 有机质; 土壤酶活
Keywords:
straw returning; returning depth; organic mateer; soil enzyme
分类号:
S156.99
DOI:
10.11942/j.issn1002-2767.2017.11.0022
文献标志码:
A
摘要:
为促进秸秆快速有效分解，设置不同土层共6个处理，分别为秸秆不还田CK1（0 cm）、CK2（15 cm）、CK3（30 cm）及秸秆还田处理SR1（0 cm）、SR2（15 cm）、SR3（30 cm），对各处理土壤有机质含量及过氧化氢酶、脲酶和蔗糖酶活性进行测定。结果表明：秸秆还田处理下的土壤有机质含量比不还田增加2.1~9.8 g?kg -1，过氧化氢酶、脲酶和蔗糖酶活性显著提高，还田深度为15 cm时秸秆腐解速率最快，对提高土壤有机质含量等效果更好。土壤酶活与有机质相关性研究结果表明：酶活性与有机质呈显著正相关（P<0.05），3种酶在土壤物质分解转化，有机质积累等过程中起到重要作用。
Abstract:
In order to promote the rapid and effective decomposition of straw,six treatments were set up in different soil layers，they were straw not returning treatment,including CK1(0 cm),CK2(15 cm),CK3(30 cm) and straw returning treatment,including SR1(0 cm),SR2(15 cm),SR3(30 cm).The soil organic matter content,and catalase,enzyme activities of urease and sucrase were measured.The results showed that compared with no straw returning to the field,soil organic matter content of the straw returning treatment increased by 2.1 g?kg -1 to 9.8 g?kg -1.And activities of catalase,urease and sucrase enzyme were significantly increased.The decomposition rate of straw was the fastest at the depth of 15 cm,which was better for improving the soil organic matter content.The correlation between soil enzyme activity and organic matter showed that the enzyme activity was positively correlated with organic matter (P<0.05).Soil enzyme played an important role in the decomposition and transformation of soil substance and accumulation of organic matter.

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备注/Memo

收稿日期：2017-10-15基金项目：黑龙江省农业科学院院级科研资助项目（2017SJ034）；齐齐哈尔市科技局农业攻关资助项目（NYGG-201625、NYGG-201509、NYGG-201409）；公益性行业（农业）科研专项经费资助项目（201503116-02）；国家现代农业技术体系建设资助项目（CARS-02）第一作者简介：徐莹莹（1989-），女，黑龙江省齐齐哈尔市人，硕士，研究实习员，从事耕作栽培和农业微生物研究。E-mail: ghdetongzhuo@163.com。

更新日期/Last Update: 2018-02-22