Long-term Effect of No-tillage on Soil Organic Matter Fractions in Rainfed Aragon (NE Spain)

被引：4
|
作者：
Blanco-Moure, N. [1 ]
Gracia, R. [1 ]
Bielsa, A. [1 ]
Lopez, M. V. [1 ]
机构：
[1] CSIC, Dept Suelo Agua Estac Expt Aula Dei, Apdo 202, Zaragoza 50080, Spain
来源：
SPANISH JOURNAL OF SOIL SCIENCE | 2011年 / 1卷 / 01期
关键词：
Soil organic carbon; conservation; tillage; particulate; organic matter; mineral-associated;
D O I：
10.3232/SJSS.2011.V1.N1.08
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
This paper assesses the long-term effect of no-tillage (NT) on soil organic carbon (OC) content and its distribution among different organic matter fractions in rainfed agrosystems of Aragon (NE Spain). Adjacent fields of NT, conventional tillage (CT) and natural soils (NAT) were compared in three different cereal production areas. In the soil surface, the higher OC content found in the NAT soils was due to the particulate organic matter. In the case of agricultural soils, in general, the fractions responsible for the OC increase under NT were the fine particulate organic matter and the mineral-associated organic matter occluded within stable microaggregates.
引用
收藏
页码：116 / 121
页数：6
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