scholarly journals Changes in soil organic carbon concentration, chemical composition and aggregate stability as influenced by tillage systems in the semi-arid and semi-humid area of North China

2017 ◽  
Author(s):  
Zhangliu Du ◽  
Xue Han ◽  
Yanqun Wang ◽  
Runshen Gu ◽  
Yingchun Li ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Concentration ◽  
North China ◽  
Aggregate Stability ◽  
Tillage Systems ◽  
Organic Carbon Concentration ◽  
Humid Area ◽  
Semi Arid

Long-term (47 yr) effects of tillage and frequency of summerfallow on soil organic carbon in a Dark Brown Chernozem soil in western Canada

2016 ◽  
Vol 96 (4) ◽  
pp. 347-350 ◽  
Author(s):  
Elwin G. Smith ◽  
H. Henry Janzen ◽  
Lauren Scherloski ◽  
Francis J. Larney ◽  
Benjamin H. Ellert
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Concentration ◽  
Western Canada ◽  
Conservation Value ◽  
Chernozem Soil ◽  
No Till ◽  
Organic Carbon Concentration ◽  
Annual Changes

After 47 yr of no-till and reduced summerfallow at Lethbridge, Alberta, soil organic carbon concentration and stocks increased 2.14 g kg−1 and 2.22 Mg ha−1, respectively, in the surface 7.5 cm layer. These findings confirmed the conservation value of reducing tillage and summerfallow. The annual changes were relatively small.

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