Effects of High Stocking Grazing Density of Diverse Swards on Forage Production, Animal Performance and Soil Organic Matter: A Case Study

2019 ◽  
pp. 131-146
Author(s):  
Konstantinos Zaralis ◽  
Susanne Padel
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Animal Performance ◽  
Forage Production

Estimating Soil Organic Matter: A Case Study of Soil Physical Properties for Environment-Related Issues in Southeast Nigeria

2021 ◽  
Author(s):  
Kokei Ikpi Ofem ◽  
Kingsley John ◽  
Mark Pawlett ◽  
Michael Otu Eyong ◽  
Chukwuebuka Edwin Awaogu ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Physical Properties ◽  
Soil Physical Properties

Environmental and Anthropogenic Factors Driving Changes in Paddy Soil Organic Matter: A Case Study in the Middle and Lower Yangtze River Plain of China

Pedosphere ◽  
2017 ◽  
Vol 27 (5) ◽  
pp. 926-937 ◽  
Author(s):  
Naijia GUO ◽  
Xuezheng SHI ◽  
Yongcun ZHAO ◽  
Shengxiang XU ◽  
Meiyan WANG ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Paddy Soil ◽  
Yangtze River ◽  
Anthropogenic Factors ◽  
Lower Yangtze ◽  
River Plain

scholarly journals Spatial-Temporal Variability of Soil Organic Matter in Urban Fringe over 30 Years: A Case Study in Northeast China

2019 ◽  
Vol 17 (1) ◽  
pp. 292
Author(s):  
Hongbin Liu ◽  
Shunting Li ◽  
Yuepeng Zhou
Keyword(s):  
Land Use ◽  
Organic Matter ◽  
Soil Organic Matter ◽  
Temporal Variation ◽  
Household Survey ◽  
Urban Fringe ◽  
Organic Fertilizers ◽  
Agricultural Planning ◽  
Study Sites

The study on soil organic matter (SOM) is of great importance to regional cultivated land use and protection. Based on data collected via continuous and high-density soil samples (0–20 cm) and socio-economic data collected from household survey and local bureau of statistics, this study employs geostatistics and economic statistical methods to investigate the spatial-temporal variation of SOM contents during 1980–2010 in the urban fringe of Sujiatun district in Shenyang City, China. We find that: (1) as to temporal variation, SOM contents in the study sites decreased from 30.88 g/kg in 1980 to 22.63 g/kg in 2000. It further declined to 20.07 g/kg in 2010; (2) in terms of spatial variation, the closer to city center, the more decline of SOM contents. Contrarily, SOM contents could even rise in outer suburb area; and (3) SOM content variation may be closely related to human factors such as farmers’ land use target and behaviour including inputs of chemical and organic fertilizers, types of crops and etc. These findings are conductive to grasp the overall trend of SOM variation and the influence of farmers’ land use behaviour on it. Furthermore, they could provide support for policymakers to agricultural planning and land use monitoring, which consequently aids the improvement of soil quality and food production in the urban fringe areas.

Microbial cell-envelope fragments and the formation of soil organic matter: a case study from a glacier forefield

2012 ◽  
Vol 113 (1-3) ◽  
pp. 595-612 ◽  
Author(s):  
Christian Schurig ◽  
Rienk H. Smittenberg ◽  
Juergen Berger ◽  
Fabio Kraft ◽  
Susanne K. Woche ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Cell Envelope ◽  
Microbial Cell ◽  
Glacier Forefield

scholarly journals Biogeographic Changes in Forest Soil Microbial Communities of Offshore Islands—A Case Study of Remote Islands in Taiwan

Forests ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 4
Author(s):  
Ed-Haun Chang ◽  
Isheng Jason Tsai ◽  
Shih-Hao Jien ◽  
Guanglong Tian ◽  
Chih-Yu Chiu
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Microbial Communities ◽  
Phospholipid Fatty Acid ◽  
Soil Microbial Communities ◽  
Chemical Properties ◽  
Principal Component ◽  
Factors Affecting ◽  
Soil Microbial

Biogeographic separation has been an important cause of faunal and floral distribution; however, little is known about the differences in soil microbial communities across islands. In this study, we determined the structure of soil microbial communities by analyzing phospholipid fatty acid (PLFA) profiles and comparing enzymatic activities as well as soil physio-chemical properties across five subtropical granite-derived and two tropical volcanic (andesite-derived) islands in Taiwan. Among these islands, soil organic matter, pH, urease, and PLFA biomass were higher in the tropical andesite-derived than subtropical granite-derived islands. Principal component analysis of PLFAs separated these islands into three groups. The activities of soil enzymes such as phosphatase, β-glucosidase, and β-glucosaminidase were positively correlated with soil organic matter and total nitrogen. Redundancy analysis of microbial communities and environmental factors showed that soil parent materials and the climatic difference are critical factors affecting soil organic matter and pH, and consequently the microbial community structure.

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