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Download e-book for iPad: Agro-Environmental Sustainability: Volume 2: Managing by Jay Shankar Singh, Gamini Seneviratne

By Jay Shankar Singh, Gamini Seneviratne

This two-volume paintings is a testomony to the expanding curiosity within the position of microbes in sustainable agriculture and meals protection. Advances in microbial applied sciences are explored in chapters facing subject matters equivalent to plant-microbe interactions, rhizoremediation and cyanoremediation, and bio-immobilization. quantity II is a suite of analysis findings that invitations readers to envision the appliance of microbes in pollutants relief, decontamination of agro- and aquatic ecosystems, and remediation of varied poisonous compounds. hugely readable entries try to shut the data hole among soil microbial institutions and sustainable agriculture.

conventional agricultural administration suggestions have relied seriously on program of chemical fertilizers and insecticides; and up to date land use switch practices have resulted in over exploitation of common assets. thoughts defined right here simplify a sophisticated photo of ways microbial groups can increase the standard of surroundings and put off meals shortage within the coming generations. This paintings is an important contribution to investigate during this more and more very important self-discipline of soil sciences, and may attract researchers in microbiology, agriculture, environmental sciences, and soil and crop sciences.

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The relationships of methanotrophs within microbial communities are complex and can be affected by N type and availability; the complexity is ­compounded by their ability to fix CO2 (Chistoserdova et al. 2005; Jiang et al. 2010; Smith and Murrell 2010) and N2 (Pfluger et al. 2011; Singh and Strong 2015). J. Strong et al. 2 M  ethane Mitigation in Soils Associated with Agriculture, Coal Mining and Landfills Globally, agricultural activities (including livestock farming); waste management (including landfilling); and fossil fuel retrieval, processing and delivery (including coal mining) are the three largest sources of anthropogenic methane (Hanson and Hanson 1996).

Frequently, this is a result of improved dissolved oxygen availability. This has two significant effects on microbial communities. The first is that it provides oxygen that the methanotrophs require to oxidise methane, allowing for greater methane sequestration efficiencies—frequently in flooded soils poor in oxygen. Second, oxygen is toxic to the methanogens and may suppress the biological production of methane. These two outcomes have been noted to significantly lower overall methane emission normally associated with rice production.

Methanotrophic methane mitigation technologies have been demonstrated as adaptable field-scale systems that may be engineered to meet site-specific climatic variations and ensure minimal atmospheric methane emission (Dever et al. 2007, 2011; Huber-Humer et al. 2008). Methane oxidation efficiencies as high as 100 % have been reported for field-scale applications (Nikiema et al. 2007; Gebert et al. 2009). Dever et al. (2011) conducted a field-scale trial at a landfill site (Sydney, Australia) investigating passive drainage and biofiltration of landfill gas as a means of managing landfill gas emissions from low to moderate gas generation landfill sites.

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