Hydrology and biogeochemistry are coupled in all systems. However, human decision-making regarding hydrology and biogeochemistry are often separate, even though decisions about hydrologic systems may have substantial impacts on biogeochemical patterns and processes. The overarching question of this dissertation was: How does hydrologic engineering interact with the effects of nutrient loading and climate to drive watershed nutrient yields? I conducted research in two study systems with contrasting spatial and temporal scales. Using a combination of data-mining and modeling approaches, I reconstructed nitrogen and phosphorus budgets for the northeastern US over the 20th century, including anthropogenic nutrient inputs and riverine fluxes, for ~200 watersheds at 5 year time intervals. Infrastructure systems, such as sewers, wastewater treatment plants, and reservoirs, strongly affected the spatial and temporal patterns of nutrient fluxes from northeastern watersheds. At a smaller scale, I investigated the effects of urban stormwater drainage infrastructure on water and nutrient delivery from urban watersheds in Phoenix, AZ. Using a combination of field monitoring and statistical modeling, I tested hypotheses about the importance of hydrologic and biogeochemical control of nutrient delivery. My research suggests that hydrology is the major driver of differences in nutrient fluxes from urban watersheds at the event scale, and that consideration of altered hydrologic networks is critical for understanding anthropogenic impacts on biogeochemical cycles. Overall, I found that human activities affect nutrient transport via multiple pathways. Anthropogenic nutrient additions increase the supply of nutrients available for transport, whereas hydrologic infrastructure controls the delivery of nutrients from watersheds. Incorporating the effects of hydrologic infrastructure is critical for understanding anthropogenic effects on biogeochemical fluxes across spatial and temporal scales.
In my ethnographic account of the multifaceted politics faced by ecomuseums, I question how power and authority are mediated through these civic institutions and how central aspects of museum and heritage practices are being redressed in Chinese society. This study exposes how ecomuseums in China are a result of global processes and positioned as part of a heritage protection movement and museum development boom to promote cultural nationalism, a "civilized" China, and state edicts of rural development in impoverished ethnic minority regions. Detailing the implications of government-led ecomuseum development in ethnic villages in southwest China, and the specific case of Huaili ecomuseum, in Guangxi, I interrogate the institutionalization of heritage and cultural landscapes through processes of exhibition, museumification, and the revaluing of culture. I explore the ecomuseum as a social space of cross-cultural encounter and friction through which local actors grapple with conditions of cultural governance and the entanglements cultural difference and a national heritage discourse. In my critical analysis of collected ethnographic narratives over 15 months of fieldwork from state-directed interest groups, Chinese technocrats, and villager informants involved in the institutionalization of heritage, I present the complex arrangements and interactions that take place through the ecomuseum context and how subject positionalities shift and claims to heritage, identity, and voice are negotiated, regulated, and contested. This study contributes to the anthropology of China and museum and heritage studies, and aims to push new directions in the study of community heritage and museums, in offering a critical perspective of the political nature of ecomuseums in non-Western contexts, such as China.