|本期目录/Table of Contents|

[1]赵海超,王炯琪,李璠,等.种植模式对土壤溶解性有机质光谱特征的影响[J].江苏农业科学,2022,50(2):232-239.
 Zhao Haichao,et al.Effects of planting patterns on spectral characteristics of dissolved organic matter in soil[J].Jiangsu Agricultural Sciences,2022,50(2):232-239.
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种植模式对土壤溶解性有机质光谱特征的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第50卷
期数:
2022年第2期
页码:
232-239
栏目:
资源与环境
出版日期:
2022-01-20

文章信息/Info

Title:
Effects of planting patterns on spectral characteristics of dissolved organic matter in soil
作者:
赵海超1 王炯琪1 李璠1 李艳平2 黄智鸿1 魏东1 卢海博1
1.河北北方学院/河北省农产品食品质量安全分析检测重点实验室,河北张家口 075000; 2.中国环境科学研究院,北京100012
Author(s):
Zhao Haichaoet al
关键词:
溶解性有机质种植模式三维荧光光谱紫外光谱
Keywords:
-
分类号:
S181
DOI:
-
文献标志码:
A
摘要:
溶解性有机质(DOM)是土壤中重要的活性有机质组分,对种植模式及人类活动反应敏感。采集冀北坝上7种种植模式的农田土壤样本,运行三维荧光结合区域积分(FRI)和紫外光谱对土壤DOM进行解析,探讨土壤DOM与种植模式的响应关系。结果表明,冀北坝上地区土壤三维荧光光谱均有5个区域,其中以类腐殖酸组分(P(V,n):5895%~69.79%)含量最高,大小顺序为露地菜地>大棚菜地>草地>青贮玉米地>燕麦地>林地>马铃薯地;富里酸组分(P(Ⅲ,n):17.97%~23.82%)次之,大小顺序为青贮玉米地>燕麦地>林地>草地>马铃薯地>大棚菜地>露地菜地;SUVD254 nm在0.02~1.31之间,青贮玉米地和露地菜地显著高于其他种植模式,草地显著低于其他种植模式。土壤总磷与类富里酸呈显著负相关,与类腐殖酸呈极显著正相关。施用有机肥能增加DOM的腐殖化程度、腐熟程度和微生物源特征;增温灌溉等改善土壤环境的措施能增加DOM芳香性和陆源特征;施用化肥能增加DOM自生源及芳香性;种植饲草作物能增加DOM的腐殖化程度和陆源特征;粗放经营能增加土壤DOM小分子组分。水源涵养区土壤应增加DOM类腐殖酸组分含量,以增加土壤保肥供肥能力,冀北坝上地区农田应增施有机肥,适度灌溉,减小利用强度,扩大饲草作物面积,以增强涵养水肥能力。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2021-03-25
基金项目:河北省教育厅重大项目(编号:ZD2019097);河北省现代农业产业技术体系项目(编号:HBCT2018020203);河北省创新能力提升计划(编号:20526401D);河北北方学院博士基金(编号:12995543)。
作者简介:赵海超(1974—),男,内蒙古赤峰人,博士,副教授,主要从事农业生态学研究。E-mail:haichaozhao19@163.com。
更新日期/Last Update: 2022-01-20