NDLI: How can straw incorporation management impact on soil carbon storage? A meta-analysis

Content Provider	Springer Nature Link
Author	Lu, Fei
Copyright Year	2014
Abstract	Straw incorporation (SI) is a common practice in China and has important implications for agricultural sustainability. This study aimed to quantitatively summarise the response of top soil (0–20 cm) carbon (C) to SI under different agricultural management regimes. Results indicated that compared with straw removal (SR), SI significantly increased soil C storage by 12 %. Moreover, incorporation of chopped straw with tillage treatment (ploughing and rotary tillage) increased C storage compared to unchopped straw without tillage treatment. SI implementation with upland cropping, in the northwest and northeast resulted in higher C storage compared with rice cropping, and in the northern and southern regions. Changes in soil C were observed based on SI variables, including tillage and straw amounts in fine-textured soils, however straw amount rather than tillage treatment exhibited a greater influence on soil C in coarse-textured soils. We concluded SI implementation with increased amounts of chopped straw for a longer duration was favourable to soil C sequestration in Chinese croplands. Furthermore, we estimated if SI was popularised across all of China’s agricultural regions, soil C sequestration potential would reach 48.2 ~ 56.2 Tg C year$^{−1}$. SI practices should therefore be encouraged.
Starting Page	1545
Ending Page	1568
Page Count	24
File Format	PDF
ISSN	13812386
Journal	Mitigation and Adaptation Strategies for Global Change
Volume Number	20
Issue Number	8
e-ISSN	15731596
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-05-18
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	China Meta analysis Soil carbon (C) sequestration Soil carbon storage Straw incorporation Atmospheric Sciences Climate Change Management and Policy Environmental Management
Content Type	Text
Resource Type	Article
Subject	Ecology Global and Planetary Change

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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