THE FEASIBILITY OF WETLAND RESTORATION TO REDUCE FLOODING IN THE RED RIVER VALLEY: A CASE STUDY OF THE MAPLE RIVER WATERSHED, NORTH DAKOTA

The economic feasibility of alternative wetland restoration activities to store water and reduce flood damage was evaluated in the Maple River Watershed, North Dakota, a sub-watershed of the Red River of the North Watershed. The evaluation was based on recent hydrologic modeling and wetland restoration studies, the National Wetland Inventory, local land rental values, and site-specific historical flood damage. With benefit-cost ratios ranging from 0.08 to 0.13, neither simple wetland restoration based on plugging existing drains, nor restoration with outlet control devices, nor complete restoration intended to provide a full range of wetland-based environmental services were economically feasible over a 20-year future period. Peak flood stages and flood damage would need to be reduced by between 4 and 12 percent in order for wetland restoration options to break even. The inclusion of additional wetland benefits did not make wetland restoration economically feasible. It is, therefore, not recommended that public funds be used for extensive wetland restoration projects throughout the Maple River Watershed or the Red River Valley in order to reduce flood damage.Economic feasibility, wetland restoration, flooding, Red River Valley, Land Economics/Use,

On the relationship between sigma models and spin chains

We consider the two-dimensional $\rm O(3)$ non-linear sigma model with topological term using a lattice regularization introduced by Shankar and Read [Nucl.Phys. B336 (1990), 457], that is suitable for studying the strong coupling regime. When this lattice model is quantized, the coefficient $\theta$ of the topological term is quantized as $\theta=2\pi s$, with $s$ integer or half-integer. We study in detail the relationship between the low energy behaviour of this theory and the one-dimensional spin-$s$ Heisenberg model. We generalize the analysis to sigma models with other symmetries.Comment: To appear in Int. J. MOd. Phys.

Selecting Books for School-Age Children.

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The “Gaijin Henro” : Outliers, Discrimination, and Time Variability with Pilgrimage in Shikoku

The diaries of foreign pilgrims on the Shikoku henro provide us with exceptional data to understand the experience of the pilgrimage. These narratives feature unique approaches, religious interpretations, and social interactions while walking the 1200 km journey. In particular, they curiously shed light on perceptions of discrimination while navigating the henro trail. I argue that the accounts of foreign pilgrims, like many of those by Japanese pilgrims, demonstrate that time-related factors are primary drivers of the pilgrimage experience. Time features of these lengthy religious journeys offer a potent area of analysis for the global field of pilgrimage studies

Black swans in white clothing : outliers and social scientific theory considered through a case study of the Shikoku Henro

At a basic level, this article considers the construction of social scientific theory. In particular, drawing from the ideas of Taleb (2007), I examine the place of outliers, or "black swans," in the analysis of a long-standing and evolving social system. Pondering the role of outliers with respect to Japan\u27s most famous pilgrimage, the Shikoku henro, I argue that rare behaviors and/or beliefs either cause pilgrimage theories to fail outright or force descriptions to become so open-ended and vague that they no longer fulfill the function of reductive analysis. I conclude that historical methodologies, though limited in producing a more niversal description, are better suited to preserve the diversity, even extremity, found with respect to pilgrimage