International and Regional Responses to the Aral Crisis: An Overview of Efforts and Accomplishments

An authoritative U.S. analyst of Central Asian water management problems, and former advisor to the Uzbek government on water management issues, surveys the nature and effectiveness of international and regional programs to mitigate the Aral Sea crisis. After first reviewing the history and magnitude of the crisis, the author assesses international and regional assistance programs during the late Soviet period and subsequent initial years of independence for the Central Asian republics within the Aral Basin. A concluding section includes policy recommendations based on the author's extensive experience in the field and familiarity with many of the principal organizations involved. Journal of Economic Literature, Classification Numbers: F35, Q15, Q25. 2 figures, 1 table, 32 references.     

Reforming Land and Water Rights in South Africa

Redress of historical injustice in access to land provided a mobilizing force for the overthrow of the apartheid government in South Africa. Inequality of access to water resources marks South Africa's history even more profoundly than inequality of access to land. Yet in South Africa, post‐apartheid legislative reform relating to land and water has followed largely separate, if parallel, paths. This article traces the development and current status of water reforms in the Inkomati Water Management Area, where water use is dominated by established commercial agriculture and forestry, by important environmental interests, including the Kruger National Park, and by demands for improved access to water from a black population of around 1.5 million living in former Bantustan areas. It indicates that in practice water and land reform are interdependent, but, although both have become more closely linked within local political and economic arenas, they remain largely disconnected and disabled by unresolved tensions within their separate policy processes. The article argues that the commoditized nature of land and water use within the established patterns of commercial agriculture sets constraints on what redistributive land and water reform can deliver to those historically dispossessed. In particular, increasing recourse to ‘strategic partnerships’ between African community landowners and commercial agribusiness as a means of maintaining the productivity of commercial farmland poses questions about the control and beneficial use of new forms of communal property.     

Conceptualizing the Survival Sector in Madagascar

Abstract: This article calls for the recognition of a subsector of the informal economy, which is conceptualized as the “survival sector”. Based on empirical evidence from Antananarivo, Madagascar it is suggested that beggars, street children and other marginalized people constitute a separate, non‐productive subsector of the economy, which is also distinguishable from formal and informal economies because of other aspects, such as the character of its social and economic networks, survival strategies, patterns of social and physical mobility, and the social and public spaces occupied. Given the vast number of marginalized people in the world, it seems useful to consider a survival sector of its own that is, despite interlinkages, fundamentally different from other components of the informal economy.     

Object-based landform delineation and classification from DEMs for archaeological predictive mapping

In this paper we report the results of an experiment with automated landform delineation and classification from digital elevation models (DEMs) using object-based image analysis (OBIA). Archaeologists rely on accurate and detailed geomorphological maps to predict and interpret the location of archaeological sites. However, they have been using high-resolution DEMs primarily for visual interpretation and expert-judgement classification of landform. OBIA can perform these classifications much faster and in a more objective fashion. The method was tested on a study area in the south east of the Netherlands. It is concluded that OBIA is a suitable technique for quick and objective delineation of landform, but needs an improved conceptual framework adapted to the local situation and archaeological questions to better identify and interpret the derived landform objects.     

Permian non-marine bivalves of the Falkland Islands and their palaeoenvironmental significance

Simões, M.G., Quaglio, F., Warren, L., Anelli, L.E., Stone, P., Riccomini, C., Grohmann, C.H. & Chamani, M.A.C. December 2012. Permian non-marine bivalves of the Falkland Islands and their palaeoenvironmental significance. Alcheringa 36, 543–554. ISSN 0311-5518.

We describe the occurrence of non-marine bivalves in exposures of the Middle Permian (Capitanian) Brenton Loch Formation on the southern shore of Choiseul Sound, East Falklands. The bivalves are associated with ichnofossils and were collected from a bed in the upper part of the formation, within a 25 cm thick interval of dark siltstones and mudstones with planar lamination, overlain by massive sandstones. The shells are articulated, with the valves either splayed open or closed. At the top of the succession, mudstone beds nearly 1.5 m above the bivalve-bearing layers yielded well-preserved Glossopteris sp. cf. G. communis leaf fossils. The closed articulated condition of some shells indicates preservation under high sedimentation rates with low residence time of bioclasts at the sediment/water interface. However, the presence of specimens with splayed shells is usually correlated to the slow decay of the shell ligament in oxygen-deficient bottom waters. The presence of complete carbonized leaves of Glossopteris associated with the bivalve-bearing levels also suggests a possibly dysoxic-anoxic bottom environment. Overall, our data suggest that the bivalves were preserved by abrupt burial, possibly by distal sediment flows into a Brenton Loch lake, and may represent autochthonous to parautochthonous fossil accumulations. The shells resemble those of anthracosiids and are herein assigned to Palaeanodonta sp. aff. P. dubia, a species also found in the Permian succession of the Karoo Basin, South Africa. Our results confirm that (a) the true distributions in space and time of all Permian non-marine (freshwater) bivalves are not yet well known, and (b) there is no evidence for marine conditions in the upper part of the Brenton Loch Formation.