Peat accumulation in high latitude wetlands represents a natural long-term carbon sink, resulting from the cumulative excess of growing season net ecosystem production over non-growing season (NGS) net mineralization in soils. With high latitudes experiencing warming at a faster pace than the global average, especially during the NGS, a major concern is that enhanced mineralization of soil organic carbon will steadily increase CO2 emissions from northern peatlands. In this study, we conducted laboratory incubations with soils from boreal and temperate peatlands across Canada. Peat soils were pretreated for different soil moisture levels, and CO2 production rates were measured at 12 sequential temperatures, covering a range from − 10 to + 35 °C including one freeze–thaw event. On average, the CO2 production rates in the boreal peat samples increased more sharply with temperature than in the temperate peat samples. For same temperature, optimum soil moisture levels for CO2 production were higher in the peat samples from more flooded sites. However, standard reaction kinetics (e.g., Q10 temperature coefficient and Arrhenius equation) failed to account for the apparent lack of temperature dependence of CO2 production rates measured below 0 °C, and a sudden increase after a freezing event. Thus, we caution against using the simple kinetic expressions to represent the CO2 emissions from northern peatlands, especially regarding the long NGS period with multiple soil freeze and thaw events.

2015),"Capturing the contribution of subject librarians: Applying strategy maps and balanced scorecards to liaison work", Library Management, Vol. 36 Iss 3 pp. 223-234 http://dx.If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -Many university libraries are adopting a faculty liaison librarian structure as an integral part of their organization and service delivery model. This paper aims to examine, in a pragmatic way, the variations in the definition of the role of the faculty liaison librarian, the expectations of those librarians, their library managers and their clients and the impact of environmental factors. The faculty liaison librarian role is not entirely new, evolving from the traditional subject librarian and university special/branch library role. However the emerging role is characterized by a more outward-looking perspective and complexity, emphasizing stronger involvement and partnership with the faculty and direct engagement in the University's teaching and research programs. Design/methodology/approach -Following a review of the literature and other sources on the rationale and role of library liaison, the current developments, drivers and expectations are discussed. Findings -The study finds that dynamic external and internal environments of universities are driving the evolution of library liaison, so the role description is still fluid. However, the breadth and weight of expectations is now such that the effectiveness and sustainability of the role has to be addressed. Practical implications -While a dynamic, broader and more intensive role for the faculty liaison librarian is emerging, more thinking is needed about the extent of that role and its sustainability. What, for example, are the priorities for the faculty liaison librarian? What traditional activities can, and may, have to be abandoned? These considerations are necessary not only to guide the librarians, but also to help define the attributes and skills required for the position and to determine the institutional support it requires. Originality/value -This is a contemporary critique of the well-established, but diverse library service -the faculty liaison librarian structure.

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