Aggregation and Soil Organic Matter Accumulation in Cultivated and Native Grassland Soils

1998 ◽  
Vol 62 (5) ◽  
pp. 1367-1377 ◽  
Author(s):  
J. Six ◽  
E.T. Elliott ◽  
K. Paustian ◽  
J. W. Doran
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Grassland Soils ◽  
Organic Matter Accumulation ◽  
Native Grassland

Oxidases and hydrolases mediate soil organic matter accumulation in chernozem of northeastern China

Geoderma ◽  
2021 ◽  
Vol 403 ◽  
pp. 115206
Author(s):  
Guohui Wu ◽  
Zhenhua Chen ◽  
Dongqi Jiang ◽  
Nan Jiang ◽  
Hui Jiang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Northeastern China ◽  
Organic Matter Accumulation

scholarly journals The Use of Radiocarbon to Measure the Effects of Earthworms On Soil Development

Radiocarbon ◽  
1980 ◽  
Vol 22 (3) ◽  
pp. 892-896 ◽  
Author(s):  
J D Stout ◽  
K M Goh
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Profile ◽  
Mineral Soil ◽  
Soil Development ◽  
Plant Debris ◽  
Grassland Soils ◽  
Fresh Plant

Δ14C and δ13C values for organic matter in forest and grassland soils, in the presence or absence of earthworms, indicate that it should be possible to quantify the effects of earthworms on soil organic matter by this means. Without earthworms, both in forest and grassland soils, plant debris tends to accumulate on the surface of the mineral soil and little organic matter is incorporated into or is translocated down the soil profile. Where earthworms are present, there is much more marked incorporation of fresh plant debris in the mineral soil. This is shown especially by the pulse of ‘bomb’ carbon and also by the δ13C values.

Soil science on the Canadian prairies - Peering into the future from a century ago

2001 ◽  
Vol 81 (4) ◽  
pp. 489-503 ◽  
Author(s):  
H H Janzen
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Key Words ◽  
Crop Rotation ◽  
Soil Science ◽  
Good Time ◽  
Grassland Soils ◽  
Canadian Prairies ◽  
The Future

Now, as a new century begins, may be a good time to reflect on the future of Soil Science on the Canadian prairies. One way to do that is to step back about one hundred years, to the turn of the previous century when our grassland soils were first cultivated. What questions perplexed scientists then? And how did they look for answers? My objective is to listen for our forebears’ thoughts in their writings, now largely buried. From this historical vantage may emerge insights, not only into where our science has been, but also into where it might yet go. Key words: Soil organic matter, crop rotation, grassland soils, history

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