Water-soluble organic matter and biological activity of a degraded soil amended with pig slurry

被引：31

作者：

Hernandez, Diana ^{[1
]}

Fernandez, Jos M. ^{[1
]}

Plaza, Cesar ^{[1
]}

Polo, Alfredo ^{[1
]}

机构：

[1] CSIC, Ctr Ciencias Medioambientales, E-28006 Madrid, Spain

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2007年 / 378卷 / 1-2期

关键词：

pig slurry; water-soluble organic C; microbial activity; enzyme activities;

D O I：

10.1016/j.scitotenv.2007.01.020

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The effects of pig slurry (PS) addition at rates of 30, 90 and 150 in 3 ha(-1) per year for five consecutive years on total organic C (TOC), water-soluble organic C (WSOC), soil microbial biomass C (MBC), basal respiration (BR) and dehydrogenase (DEH) and beta-glucosidasc (GLU) activities of soil were investigated in a field experiment conducted under barley cultivation and semiarid conditions. Cumulative PS addition at 90 and 150 m(3) ha(-1) rates had a significant stimulating effect on MBC content and DEH and GLU activities. In contrast, no significant effect of PS amendment on TOC, WSOC and BR was detected. These results suggest that PS addition revitalizes soil microbial metabolism in transitory form because of the low stability of the added organic matter. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：101 / 103

页数：3

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