scholarly journals Secondary Forests and Agrarian Transitions: Insights from Nepal and Peru

Human Ecology ◽  
2021 ◽  
Author(s):  
Adam Pain ◽  
Kristina Marquardt ◽  
Dil Khatri
Keyword(s):  
Forest Regeneration ◽  
Agricultural Intensification ◽  
Necessary Conditions ◽  
Secondary Forest ◽  
Social Groups ◽  
Agrarian Change ◽  
Secondary Forests ◽  
Land Access ◽  
San Martín

AbstractWe provide an analytical contrast of the dynamics of secondary forest regeneration in Nepal and Peru framed by a set of common themes: land access, boundaries, territories, and rights, seemingly more secure in Nepal than Peru; processes of agrarian change and their consequences for forest-agriculture interactions and the role of secondary forest in the landscape, more marked in Peru, where San Martín is experiencing apparent agricultural intensification, than in Nepal; and finally processes of social differentiation that have consequences for different social groups, livelihood construction and their engagement with trees, common to both countries. These themes address the broader issue of the necessary conditions for secondary forest regeneration and the extent to which the rights and livelihood benefits of those actively managing it are secured.

scholarly journals Assessing Baseline Carbon Stocks for Forest Transitions: A Case Study of Agroforestry Restoration from Hawaiʻi

Agriculture ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 189
Author(s):  
Angelica Melone ◽  
Leah L. Bremer ◽  
Susan E. Crow ◽  
Zoe Hastings ◽  
Kawika B. Winter ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Secondary Forest ◽  
Woody Debris ◽  
Soil Mass ◽  
Climate Mitigation ◽  
Secondary Forests ◽  
Soil C ◽  
C Stocks ◽  
Forest Transitions

As the extent of secondary forests continues to expand throughout the tropics, there is a growing need to better understand the ecosystem services, including carbon (C) storage provided by these ecosystems. Despite their spatial extent, there are limited data on how the ecosystem services provided by secondary forest may be enhanced through the restoration of both ecological and agroecological functions in these systems. This study quantifies the above- and below-ground C stocks in a non-native secondary forest in Hawaiʻi where a community-based non-profit seeks to restore a multi-strata agroforestry system for cultural and ecological benefits. For soil C, we use the equivalent soil mass method both to estimate stocks and examine spatial heterogeneity at high resolution (eg. sub 5 m) to define a method and sampling design that can be replicated to track changes in C stocks on-site and elsewhere. The assessed total ecosystem C was ~388.5 Mg C/ha. Carbon stock was highest in trees (~192.4 Mg C/ha; ~50% of total C); followed by soil (~136.4 Mg C/ha; ~35% of total C); roots (~52.7 Mg C/ha; ~14% of total C); and was lowest in coarse woody debris (~4.7 Mg C/ha; ~1% of total C) and litter (~2.3 Mg C/ha; <1% of total C). This work provides a baseline carbon assessment prior to agroforest restoration that will help to better quantify the contributions of secondary forest transitions and restoration efforts to state climate policy. In addition to the role of C sequestration in climate mitigation, we also highlight soil C as a critical metric of hybrid, people-centered restoration success given the role of soil organic matter in the production of a suite of on- and off-site ecosystem services closely linked to local sustainable development goals.

scholarly journals Inventarisasi Jenis Pohon Pada Cagar Alam Gunung Ambang, Sulawesi Utara

Jurnal MIPA ◽  
2015 ◽  
Vol 4 (2) ◽  
pp. 115
Author(s):  
Akbar Arafah Embo ◽  
Roni Koneri ◽  
Saroyo . ◽  
Adelfia Papu
Keyword(s):  
Life Support ◽  
Secondary Forest ◽  
Primary Forest ◽  
Line Transect ◽  
Sampling Point ◽  
Secondary Forests ◽  
North Sulawesi ◽  
The People ◽  
Family Types

Pohon sebagai penyusun utama kawasan hutan berperan penting dalam pengaturan tata air, cadangan plasma nutfah, penyangga kehidupan, sumber daya pembangunan dan sumber devisa Negara. Peranan pohon-pohon dalam komunitas hutan semakin sulit dipertahankan mengingat tekanan masyarakat terhadap kelompok tumbuhan dari waktu ke waktu terus meningkat.Penelitian ini bertujuan untuk mengkaji jenis-jenis pohon yang berada di kawasan Cagar Alam Gunung Ambang, Sulawesi Utara. Metode penelitian yang digunakan yaitu metode garis berpetak yang merupakan modifiksi dari metode petak atau plot ganda dan metode jalur. Tipe habitat yang dijadikan titik pengambilan sampel adalah hutan primer dan hutan sekunder. Hasil pengamatan diperoleh sebanyak 38 jenis pohon penyusun hutan di Gunung Ambang yang termasuk dalam 22 suku. Pada hutan primer disusun oleh 37 jenis dan 22 suku, sedangkan pada hutan sekunder terdiri dari 28 jenis yang termasuk dalam 18 suku. Jenis pohon yang mendominasi setiap lokasi penelitian yaitu suku Magnoliaceae dan Arecaceae.Tree as the main constituent of forests play an important role in water regulation, germplasm reserves, life support, development resources and the country's foreign exchange resources. The role of trees in the forest communities are difficult to be sustained because the people pressure increase on the trees day by day. This study aims to assess the types of trees that are in the nature reserve area of ​​Gunung Ambang, North Sulawesi. The method used is the line transect plots that is modified  from the plot method or a double plot and track method. The type of habitat that is used as the starting sampling point is the  primary forests and secondary forests. Result of observations showed that Gunung Ambang is composed by 38 species of plant in 22 family. In the primary forest composed by 37 species and 22 Family, whereas in secondary forest consists of 28 species in 18 family. Types of trees that dominate each research location are Family Magnoliaceae and  Family Arecaceae.

Generalizing forest regeneration models: the dependence of propagule availability on disturbance history and stand size

1996 ◽  
Vol 26 (1) ◽  
pp. 45-52 ◽  
Author(s):  
Chris J. Peterson ◽  
Walter P. Carson
Keyword(s):  
North America ◽  
Seed Bank ◽  
Forest Regeneration ◽  
Secondary Forest ◽  
Secondary Forests ◽  
Forest Types ◽  
Disturbance History ◽  
Northeastern North America ◽  
Special Cases ◽  
Forest Conditions

We summarize three existing conceptual frameworks for forest regeneration in northeastern North America and suggest that none consider both a range of disturbance characteristics and a range of forest conditions at the time of disturbance. We offer a more general conceptual model, within which the existing models can be seen as special cases. We propose that the abundance of characteristic seed–bank, pioneer species, such as Prunuspensylvanica L.f. and Rubus spp. (often Rubusallegheniensis T.C. Porter, Rubushispidus L., or Rubusodoratus L.), is dependent on propagule availability, which in turn is determined by forest age and size. Specifically, following disturbance, large tracts of forest and older forests (ca. >125 years) are predicted to have very low densities of the above pioneers. As a result, population, community, and ecosystem parameters may be substantially different in the regenerating forest than in the familiar cases of regeneration in secondary forests. Indeed, the presettlement forest of much of northeastern North America may have experienced a notable scarcity of pioneers after disturbances, in areas far enough inland for hurricanes to be unimportant. Our hypothesis makes predictions of seed-bank abundance that are well supported in a variety of forest types; we also provide support for our hypothesis with data on regeneration following catastrophic windthrow in Allegheny National Forest, Pennsylvania, and elsewhere. Finally, our hypothesis also predicts that the potential regeneration in much of the secondary forest of northeastern North America should profoundly shift as stands age from roughly 100 to 130 years.

scholarly journals Secondary Forest Succession in the Mata Atlantica, Brazil: Floristic and Phytosociological Trends

ISRN Ecology ◽  
2011 ◽  
Vol 2011 ◽  
pp. 1-19 ◽  
Author(s):  
Alexandre Siminski ◽  
Alfredo Celso Fantini ◽  
Raymond Paul Guries ◽  
Ademir Roberto Ruschel ◽  
Maurício Sedrez dos Reis
Keyword(s):  
Forest Succession ◽  
Secondary Forest ◽  
Woody Species ◽  
Secondary Forests ◽  
Forest Types ◽  
Ecological Processes ◽  
Forest Inventories ◽  
Shade Tolerant Species ◽  
Small Set

This study aimed at understanding the dynamics of ecological processes and the use of secondary forests in Santa Catarina state (Brazil). The data base for these studies was formed through forest inventories carried out in the three forest types of the state. The results of this study demonstrate that the patterns of diversity are very similar among the three forest types; however, the species compositions among the types are quite different. A total of 343 woody species belonging to 73 families were found in the 24,000 m2 sampling area, revealing the potential role of secondary forest in the conservation of biodiversity at the landscape scale. As expected, a small set of pioneer species dominates young secondary forests with shade-tolerant species becoming structurally important after 30 years. The patterns of forest structure and species diversity observed in study largely conform to the postagricultural secondary succession observed for many tropical forests.

scholarly journals Debt and Sacrifice: The Role of Scapegoats in the Economic Crises

Religions ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 128
Author(s):  
Luis Enrique Alonso ◽  
Carlos J. Fernández Rodríguez
Keyword(s):  
Financial Markets ◽  
Social Relations ◽  
Critical Role ◽  
Social Groups ◽  
Symbolic Violence ◽  
Personal Bankruptcy ◽  
Economic Relations ◽  
Modern Economy ◽  
Standards Of Living

Despite the process of secularization and modernization, in contemporary societies, the role of sacrifice is still relevant. One of the spaces where sacrifice actually performs a critical role is the realm of modern economy, particularly in the event of a financial crisis. Such crises represent situations defined by an outrageous symbolic violence in which social and economic relations experience drastic transformations, and their victims end up suffering personal bankruptcy, indebtedness, lower standards of living or poverty. Crises show the flagrant domination present in social relations: this is proven in the way crises evolve, when more and more social groups marred by a growing vulnerability are sacrificed to appease financial markets. Inspired by the theoretical framework of the French anthropologist René Girard, our intention is to explore how the hegemonic narrative about the crisis has been developed, highlighting its sacrificial aspects.

scholarly journals The Role of Recent (1985–2014) Patterns of Land Abandonment and Environmental Factors in the Establishment and Growth of Secondary Forests in the Iberian Peninsula

Land ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 817
Author(s):  
Marina Palmero-Iniesta ◽  
Josep Maria Espelta ◽  
Mario Padial-Iglesias ◽  
Òscar Gonzàlez-Guerrero ◽  
Lluís Pesquer ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Iberian Peninsula ◽  
Forest Cover ◽  
Secondary Forest ◽  
Forest Growth ◽  
Deciduous Forests ◽  
Secondary Forests ◽  
Study Region ◽  
Leaf Habit ◽  
Forest Establishment

Farmland abandonment has been a widespread land-use change in the Iberian Peninsula since the second half of the 20th century, leading to the establishment of secondary forests across the region. In this study, we aimed to address changes in the recent (1985–2014) emergence patterns of these forests and examine how environmental factors affected their growth by considering differences in leaf-habit types. We used a combination of Landsat-derived land-cover maps and aboveground biomass (AGB) maps from the European Space Agency to assess the secondary forest establishment and growth, respectively, in the study region. We also obtained a set of topographic, climatic and landscape variables from diverse GIS layers and used them for determining changes over time in the environmental drivers of forest establishment and AGB using general linear models. The results highlight that secondary forest cover was still increasing in the Iberian Peninsula at a rate above the European average. Yet, they also indicate a directional change in the emergence of secondary forests towards lower and less steep regions with higher water availability (mean rainfall and SPEI) and less forest cover but are subjected to greater drought events. In addition, these environmental factors differentially affect the growth of forests with different leaf-habit types: i.e., needleleaf secondary forests being less favoured by high temperature and precipitation, and broadleaf deciduous forests being most negatively affected by drought. Finally, these spatial patterns of forest emergence and the contrasting responses of forest leaf-habits to environmental factors explained the major development of broadleaf evergreen compared to broadleaf deciduous forests and, especially, needleleaf secondary forests. These results will improve the knowledge of forest dynamics that have occurred in the Iberian Peninsula in recent decades and provide an essential tool for understanding the potential effects of climate warming on secondary forest growth.

scholarly journals Omega vs. pi, and 6d anomaly cancellation

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Joe Davighi ◽  
Nakarin Lohitsiri
Keyword(s):  
Gauge Theories ◽  
Necessary Conditions ◽  
Homotopy Groups ◽  
Mapping Torus ◽  
Anomaly Cancellation ◽  
Global Anomaly ◽  
Gauge Anomalies ◽  
Local Anomalies ◽  
Dimensional Mapping

Abstract In this note we review the role of homotopy groups in determining non-perturbative (henceforth ‘global’) gauge anomalies, in light of recent progress understanding global anomalies using bordism. We explain why non-vanishing of πd(G) is neither a necessary nor a sufficient condition for there being a possible global anomaly in a d-dimensional chiral gauge theory with gauge group G. To showcase the failure of sufficiency, we revisit ‘global anomalies’ that have been previously studied in 6d gauge theories with G = SU(2), SU(3), or G2. Even though π6(G) ≠ 0, the bordism groups $$ {\Omega}_7^{\mathrm{Spin}}(BG) $$ Ω 7 Spin BG vanish in all three cases, implying there are no global anomalies. In the case of G = SU(2) we carefully scrutinize the role of homotopy, and explain why any 7-dimensional mapping torus must be trivial from the bordism perspective. In all these 6d examples, the conditions previously thought to be necessary for global anomaly cancellation are in fact necessary conditions for the local anomalies to vanish.

Bewirtschaftung von tropischen Sekundärwäldern

2002 ◽  
Vol 46 (1) ◽  
Author(s):  
Dietrich Schmidt-Vogt
Keyword(s):  
Land Use ◽  
Forest Cover ◽  
Stand Structure ◽  
Secondary Forest ◽  
Secondary Forests ◽  
Tropical Asia ◽  
Land Use Systems ◽  
The Future ◽  
The Tropics ◽  
Primary Forests

AbstractManagement of secondary tropical forests: a new perspective for sustainable use of forests in Asia. The decline of primary forests in the tropics is leading to a reassessment of the role secondary forests might play within the context of tropical forest management. Recent research has shown that secondary forests in the tropics can be both rich in species and complex in terms of stand structure. There is, moreover, a growing recognition of the importance of secondary forests for traditional subsistence economies in the tropics and of their economic potential for land use systems in the future. Management of secondary forests in Asia as an alternative to the extraction of timber from primary forests but also as one among other options to intensify traditional land use systems has a potential for the future especially because of the existence of vast tracts of valuable secondary forest cover, and because of the store of traditional knowledge that can still be found in tropical Asia.

The will to give: charitable bequests, inter vivos gifts and community building in the Dutch Republic, c. 1600–1800

2012 ◽  
Vol 27 (2) ◽  
pp. 241-270 ◽  
Author(s):  
ELISE VAN NEDERVEEN MEERKERK
Keyword(s):  
Eighteenth Century ◽  
Early Modern ◽  
Urban Poor ◽  
Charitable Giving ◽  
Community Building ◽  
Social Groups ◽  
Poor Relief ◽  
The Will ◽  
Charitable Bequests

ABSTRACTThis article explores the role of different social groups in early modern Dutch towns in organising and financing poor relief. Examining both the income structure of Dutch urban poor relief organisations and voluntary donations and bequests by citizens reveals what motivations lay behind their involvement, and how and why these changed over time. In the seventeenth century, ‘middle groups’ donated more often and higher mean amounts, reflecting their efforts to contribute to urban community building. In the eighteenth century, the elite became relatively more involved in charitable giving. Also, the urge to give to one's own religious group seems to have increased in this period.

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