The management of rice straw, fertilisers and leaf litters in rice cropping systems in Northeast Thailand

被引：4

作者：

Kunnika Naklang

Anthony Whitbread

Rod Lefroy

Graeme Blair

Sodchol Wonprasaid

Yothin Konboon

Duangjai Suriya-arunroj

机构：

[1] Ubon Rice Research Center,Division of Agronomy and Soil Science

[2] University of New England,undefined

[3] IBSRAM,undefined

来源：

Plant and Soil | 1999年 / 209卷

关键词：

carbon management index; labile carbon; residue management; rice cropping systems; soil organic matter;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Declines in soil organic mailer (SOM) have occurred in most rainfed rice cropping systems in the world. Such declines threaten the sustainability of these systems and steps need to be taken to reverse the decline. Paired soil samples collected from forest and cropped areas in Northeast Thailand revealed an approximately 70% decline in both labile carbon (CL) and total carbon (CT) in the surface 10 cm as a result of cropping. CL was found to be higher in the 20–40 cm soil layer in the cropped than the forest soil indicating C leaching or soil mixing.

引用

页码：21 / 28

页数：7

共 46 条

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