森林史研究:以菲律宾森林滥伐史研究为重点

本文主要介绍国际森林史研究的发展历程和解释菲律宾森林滥伐史的主要观点。就国际森林史研究来看, 经历了一个从重点研究温带森林史向热带森林史转变的过程。就菲律宾森林滥伐史研究来看, 提出了诸如人口增长压力说、木材生产和贸易说、林业政策鼓励说、行政不力和政治腐败说等重要解释框架。森林史研究需要超越从单因素出发进行解释的现状, 需要向综合研究转变。国别和专题的森林史研究需要从全球森林史和环境史的整体视野来关注。     

Soybeans,Development and Conservation on the Amazon Frontier

Bolivia's rate of deforestation throughout the 1990s was among the most rapid anywhere in the Amazon Basin. This drastic clearing stood in sharp contrast to the relatively slow rates of landscape change that had prevailed in previous decades. This article reviews the models used for explaining deforestation, and argues that the new context of globalization, structural adjustment, regional integration and rapid technological change contributed to accelerated forest cutting during the 1990s. The author suggests that many environmental policy approaches developed during the 1970s and 1980s no longer address the current clearing situation effectively, and that today's frontiers differ profoundly from previous ones. The widely held idea that intensive production per se reduces forest destruction may not be valid on tropical agro‐industrial frontiers, such as the soybean zones of Bolivia and Brazil.     

TROPICAL DEFORESTATION AND FOREST MANAGEMENT UNDER THE SYSTEM OF CONCESSION LOGGING: A DECISION-THEORETIC ANALYSIS*

ABSTRACT. Deforestation caused by concession logging is often the result of harvest decisions which focus on short-run profits rather than on long-run sustainable harvest yields. A sequential-decision model of this type of behavior is here developed which focuses on a logger's annual decisions of whether or not to remain in compliance with the terms of a concession contract. The contract stipulates harvesting procedures for a sustained forest yield, and noncompliance is taken to result in deforestation. An optimal decision policy for the concession logger is characterized in terms of optimal-stopping theory, and is employed to construct payoff incentives which encourage compliance. In particular, a forest management problem is formulated which focuses on the effectiveness of partial inspection policies in deterring noncompliant behavior. General necessary and sufficient conditions for the effectiveness of such policies are established, and are given a more operational form for the Markov case. A numerical example based on actual concession-contract data is also developed which suggests certain policy implications.     

‘Birds,bogs and forestry’ revisited: The significance of the flow country controversy

This paper evaluates the significance of the battle between forest and conservation interests in the Flow Country of northern Scotland during the late 1980s. It summarises the key arguments for and against afforestation as they were presented at the time, and reviews their validity in the light of subsequent developments. Commercial afforestation was claimed to be an economically valuable land use in a region with few alternatives, whereas conservationists presented the Flow Country as a wetland habitat of international significance. The controversy had far‐reaching consequences both for forest practice and nature conservation in Scotland and the UK. The break‐up of the Nature Conservancy Council and the remit given to Scottish Natural Heritage, the negative public perception of commercial forestry, the adoption of multiple objective forest management, Indicative Forest Strategies, and the participatory philosophy in conservation, can all be wholly or partly traced to the controversy. Ultimately, the controversy is shown to have had positive outcomes both for conservation and forest practice.     

One island too many: reappraising the extent of deforestation in the Philippines prior to 1946

The extent to which parts of the Philippine archipelago were deforested prior to 1946 has received less scholarly attention than it deserves. Unfortunately most of the forestry records of both the Spanish and American colonial regimes were lost as a result of mishap and warfare. However, by sifting through hitherto largely untapped archival sources in Manila and Washington as well as a considerable body of contemporary commentaries, it is possible to reconstruct a much more accurate picture of the scale of forest loss and chart the growth of a commercial timber market during the second half of the nineteenth century. Attention is also drawn to a fundamental misconception about the effective size of the colonial state and therefore the unit of analysis used to calculate previous attempts at forest cover and depletion. The exclusion or inclusion of Mindanao, the second largest island in the Philippines, has implications for both the true extent of deforestation under Spanish rule and the subsequent rate of forest felling during the ensuing American period. Finally, the contention is made that the quality of forest cover data collected by manual means in the past is perhaps more accurate than previously acknowledged and requires more serious consideration in conjunction with material obtained by modern instrumentation.     

Fashioned Forest Pasts,Occluded Histories? International Environmental Analysis in West African Locales

This article considers how environmental problematics are produced and interpreted, using case material from West Africa’s humid forest zone. Examing the experiences of several countries over the long term, it is possible to identify a deforestation discourse produced through national and international institutions. This represents forest and social history in particular ways that structure forest conservation but which obscure the experience and knowledge of resource users. Using fine‐grained ethnography to explore how such discourse is experienced and interpreted in a particular locale, the article uncovers problems with ‘discourse’ perspectives which produce analytical dichotomies which confront state and villager, and scientific and ‘local’ knowledges. The authors explore the day‐to‐day encounters between villagers and administrators, and the social and historical experiences which condition these. Instances where the deforestation discourse becomes juxtaposed with villagers’ alternative ideas about landscape history prove relatively few and insignificant, while the powerful material effects of the discourse tend to be interpreted locally within other frames. These findings present departures from the ways relations between citizen sciences and expert institutions have been conceived in recent work on the sociology of science and public policy.     

Indigenous management of teak woodland in Zimbabwe, 1850–1900

African forests provide the focus for a growing body of historical research. This study draws on economic and environmental history approaches in exploring the exploitation and conservation of woodland, respectively. The main focus of the investigation is the consumption–conservation relationship between pre-colonial African people and the forest zone, an interaction viewed by colonial foresters in Zimbabwe as wasteful and based on religious superstition. In spite of the open criticism of rapacious timber cutting by mining companies and poor farming techniques by settlers, colonial perceptions over time stressed the notion of ‘improvident Africans’ as the prime cause of environmental destruction, in particular, deforestation and erosion. Within the African context, historical forest literature is bound to reject colonial misconceptions regarding the scope of indigenous woodland management. Customary forest practice in the Zambezi teak or Baikiea woodland points towards a better understanding on the subject, informed by a wide range of sources; oral tradition, missionary records, travel accounts and colonial documents. In reconstructing pre-colonial resource use from interviews and archival data, this study adopts a multi-source approach, while guarding against an overly romanticised view of indigenous practice.     

Quantifying scarcity: deforestation in the Upper Volga region and early debates over climate change in nineteenth-century Russia

ABSTRACT

The paper examines the early history of environmental concerns in Russia. It focuses on a case study: the debates about a potentially detrimental impact of deforestation on water regimes, which took place in the 1830s–40s. It examines two sets of issues: the role of ideas about a growing scarcity of forest resources in Europe; and the actual state of forests in Russia that provided some evidentiary basis for these debates. It argues that these debates were possible at the convergence of several trends: an expanding role and objectives of the forest administration well-versed in European scientific debates of the age and at the same time a visible danger of deforestation in some regions of a strategic significance to the empire. The author also considers different expert cultures and evidentiary standards that could be observed during the debates.     

Future Non-Analogue Climates for Scotland’s Temperate Rainforest

Temperate rainforest is restricted to a globally rare set of climatic conditions. Scotland has among the best remaining examples of intact temperate rainforest in Europe, characterised ecologically by a unique assemblage of epiphytic bryophytes and lichens. Given climatic control on rainforest distribution and ecology, climate change is a probable risk to Scotland’s rainforest. This study investigated climate change impacts for 20 target sites, classified based on (i) bioclimatic conditions, and (ii) epiphytic diversity, into contrasting rainforest and more continental (non-rainforest) examples. Space-for-time matching identified climate analogues within the European conservation forest network, which at present have a climate similar to that expected of the target sites during the 2080s (WorldClim datasets). The results show that 2080s analogues for sites in more continental north-eastern Scotland occur in Wales and southern England. However, Scottish rainforest sites were their own ‘best analogues’ through to the 2080s, despite the fact that their climate is projected to change significantly; they had no suitable future analogue within Europe’s conservation forest network. These contrasting regional patterns highlight the need for a flexible approach to species conservation during climate change, including a strategy to cope with ecological uncertainty in Scotland’s zone of oceanic rainforest.     

The role of forests in global climate change: whence we come and where we go

Neither the United Nations Framework Convention on Climate Change (UNFCCC) nor the Kyoto Protocol include a satisfying mechanism for reducing the substantial emissions from deforestation which are responsible for about a quarter of global greenhouse gas emissions. It is acknowledged that planting forests, for example through afforestation and reforestation in the Clean Development Mechanism, clearly provides an opportunity to sequester carbon in vegetation and soils. However, it takes decades to restore carbon stocks that have been lost as a result of land-use changes. Reducing the rate of deforestation is the only effective way to reduce carbon losses from forest ecosystems. As negotiations on a post-Kyoto agreement have already started the authors argue that a complete and fair post-Kyoto regime will have to expand existing regulations by creating a framework to encompass all land-use and forest-related changes in carbon stocks. Developing countries administer the majority of the world's environmental resources and provide a vital global public good by maintaining environmental assets. However, with increasing pressure on development and the use of resources, developing countries can hardly be expected to provide these services free. Therefore, they will have to be integrated into a more comprehensive incentive framework which also rewards forestry conservation, sustainable forest management and afforestation. The authors discuss how an incentive system for the protection of forests can be included in a future climate regime. Different design choices are considered and two recent approaches to reward developing countries that avoid further deforestation are compared: the 'compensated reduction of deforestation' approach and the Carbon Stock Approach.     

Shifting Cultivation and Deforestation in Tropical Africa: Critical Reflections

Shifting cultivation is the agricultural technique employed by the majority of farmers in the tropical regions of Africa. The dominant narrative recited by policy experts, non‐governmental organizations and many scientists is that this practice is a principal cause of deforestation in tropical Africa. This article unpacks the various elements of this narrative and explores whether there is any evidence to substantiate it in West and Central Africa. The results challenge the conventional wisdom that shifting cultivation is leading to accelerating deforestation in tropical Africa.     

Really shit work? Bodily becoming and the capacity to care for the urban forest

The urban forest has a significant impact on the city’s social and ecological performance. However, shrinking space and resources needed to care for trees means cultivating community care for the urban forest is an increasingly salient issue. To this end, the paper seeks to deepen our understanding of the powers shaping people’s capacity to care for trees. It identifies the body as one of these powers and turns to Deleuze and Guattari for a theory of corporeality that illuminates the body’s role in the process of becoming a ‘bushcarer’. This highlights the trans-corporeal practices and encounters that endow people with the skills and desire needed to care for the urban forest. With the ethical utility of the body being debated by social and cultural geographers, this article defends its potential by suggesting the body and its encounters are deeply implicated in the development of a dyadic capacity to care for the urban forest. For urban forestry, this means community engagement might be framed as an ethical event that facilitates experiments in bodily composition that might change our ways of thinking, feeling, and being with the urban forest.     

History of Deforestation and Reforestation in the Dinaric Karst

The term karst derives from the Kras plateau, which is in the northwestern part of the area now known as the Dinaric Karst. The landscape consists mostly of Mesozoic carbonate rocks and stretches along the Adriatic Sea coast for a distance of 600 km. Although the region lies parallel to the sea, the Mediterranean temperature influence is limited to a narrow coastal belt, except for the amount of precipitation, which can reach 5000 mm yr^?1. Forests belonging to the Mediterranean and Euro‐Siberian – North American region, covered the primary Dinaric Karst. Human deforestation of the Karst began during the Neolithic period, 6500–6000 BC. Throughout history there have been two main reasons for deforestation; economic (the requirements of new land, pastures, timber use and trade), and social (local increases in population, mass migration, wars, raids). Mankind's perception of forest protection and preservation can be traced through documents going back to the 12th century. Reforestation is mentioned in some of them, but successful reforestation did not begin until the 1850s. Nowadays dense natural forests, extensive forest plantations, dry karst shrublands and also completely barren karst areas can all be found on the Dinaric Karst.     

The Caspian Forests of Northern Iran during the Qajar and Pahlavi Periods: Deforestation,Regulation, and Reforestation

Uniquely among the world’s temperate forests, much of the vegetation of the Caspian forests is now endangered. But while deforestation has accelerated in Iran, these processes were actually underway in the nineteenth century. This article offers a brief introduction to the history of forest exploitation and concessions during the Qajar and Pahlavi periods, addressing actions taken by the Iranian state to protect and extend forest cover, but also the deficiencies of that legislation and the reasons for its failure. Though it is one of the most forested countries in the Middle East, Iran’s forests remain understudied. Existing scholarship mostly addresses the contemporary period; this paper extends the scope of our knowledge, offering a deeper history of forest exploitation in Iran.     

Tikal timbers and temples: ancient Maya agroforestry and the end of time

Tikal, a major lowland Maya civic-ceremonial center in the heart of the Petén region of Central America, relied heavily on the adjacent lowland rainforest as a resource base for fuel and construction materials. In this study, we analyzed 135 wood samples from timbers used in the construction of all six of the city's major temples as well as two major palaces to determine which tree species were being exploited and to better understand ancient Maya agroforestry practices during the Late Classic period. We found evidence for a change in preference from the large-growing, upland forest species, Manilkara zapota, to a seasonal wetland species Haematoxylon campechianum in A.D. 741 as well as a decrease in lintel beam widths over time. Though M. zapota later returned as the wood species of choice in A.D. 810, beam widths were found to be significantly smaller. These findings concur with models that hypothesize widespread deforestation during the Late Classic period and indicate a declining forest resource base by the 9th century A.D. Because of the many large timbers available for temple construction in the 8th century, some system of forest conservation is indicated for the ancient Maya prior to the Late Classic period.     

Poverty and Agrarian‐Forest Interactions in Thailand

In this paper we address the often sterile and circular debates over relationships between poverty and deforestation. These debates revolve around questions of whether forest loss causes poverty or poverty contributes to forest encroachment, and questions of whether it is loss of access to forests or dependence on forest‐based livelihoods that cause poverty. We suggest that a way beyond the impasse is to set such debates within the context of agrarian change. Livelihoods of those who live in or near forests depend considerably on a rapidly changing agriculture, yet agrarian contexts receive only background attention in popular, political and academic discourse over poverty and forests. Moreover, to the extent that agriculture is considered, little heed is paid to social, technical and economic change. We therefore address agriculture's changing relationships with the wider economy, otherwise referred to as the agrarian transition, and with the natural resource base on which it depends. The paper draws on the experience of Thailand to illustrate our key argument, and more specifically addresses the situation on the resource periphery through a look at the agriculture‐forest interface.     

Ancient Maya wood selection and forest exploitation: a view from the Paynes Creek salt works,Belize

Ancient building construction wood preserved in a peat bog below the seafloor in a shallow mangrove lagoon in Paynes Creek National Park, Belize, provides an exceptional record of Classic Maya wood use. Identifications of construction wood at Early Classic Chan B'i, and Late Classic Atz'aam Na, are reported and discussed to assess forest exploitation and species selection over time. Black mangrove (Avicennia germinans) dominates the Early Classic assemblage. The Late Classic assemblage is characterized by greater variability and an absence of mangrove species. When considered in the environmental context, identified species conform to principles of optimal foraging. The change in the wood assemblage over time suggests overexploitation of forest resources, resulting in deforestation of the local landscape and subsequent adaptation of foraging behavior. Deforestation is linked to the wider social context in which growing inland populations created demand for salt, putting greater pressure on the forest resources exploited by the Paynes Creek salt works for fuel and timber.     

Evidence of pedogenesis from a neolithic site at Rackham,Sussex

A rich assemblage of Neolithic flints and associated charcoal lies at a depth of 15–20 cm in what is now a strongly-leached podzol. The site was probably associated with butchery and the preparation of animal materials using flint implements manufactured on the site. The pollen profile suggests that the contemporary vegetation was mixed deciduous forest and that the artifacts were buried by earthworm action. Subsequent deforestation and the development of Calluna heath would have led to the extinction of the earthworms and the development of the present podzol.     

Development Discourses and Peasant–Forest Relations: Natural Resource Utilization as Social Process

This article analyses the changing role of forests and the practices of peasants toward them in a Costa Rican rural community, drawing on an analytical perspective of political ecology, combined with cultural interpretations. The study underlines the complex articulation of local processes and global forces in tropical forest struggles. Deforestation is seen as a process of development and power involving multiple social actors, from politicians and development experts to a heterogeneous group of local peasants. The local people are not passive victims of global challenges, but are instead directly involved in the changes concerning their production systems and livelihood strategies. In the light of historical changes in natural resource utilization, the article underlines the multiplicity of the causes of tropical deforestation, and the intricate links between global discourses on environment and development and local forest relations.     

The Role of Metallurgy in Transforming Global Forests.

Forest degradation—both past and present—has been a significant research focus of many disciplines in recent decades, and it is an area in which the multidisciplinarity and long-term perspectives of archaeological endeavour has the potential to make a particularly valuable contribution. One of the past craft activities that has long been linked to significant socio-economic change and associated accelerations in forest cover reduction and environmental decline is the intensification of early iron production—an industry reliant on the consumption of charcoal as fuel for much of its history. However, the impact of iron production on the transformation of woodlands is dependent on a suite of interrelated factors—climatic, ecological, technological and cultural—only some of which have so far been adequately scrutinised. This paper explores the theoretical context that links iron production with deforestation in academic and popular cultures, examining the role that archaeology can play in investigating this association, before reviewing recent methodological approaches that aim to interrogate the relationship between metallurgy and the environment in archaeological settings.