scholarly journals Analysis of land use change in Mangrove of the Barra San José, Chiapas, Mexico

2022 ◽  
Vol 13 (1) ◽  
pp. 153-159
Author(s):  
Karla Mildred Cigarroa-Alonso ◽  
Gladys Linares-Fleites ◽  
Miguel Ángel Valera-Pérez
Keyword(s):  
Land Use ◽  
Migratory Birds ◽  
San Jose ◽  
Deforestation Rate ◽  
Conservation Policies ◽  
Deforestation Rates ◽  
Development Policies ◽  
Ecological Region ◽  
Management And Conservation ◽  
Biological Filters

Mangroves are the most productive ecosystems in the world, since they provide ecosystem services, are biological filters, stabilize the coastline and are the habitat of important fishing species and migratory birds nest. However, the inadequate implementation of agricultural, livestock and tourism development policies has implied the loss of biodiversity, habitat fragmentation and deforestation. The objective of this work is to evaluate the dynamics of changes in mangrove cover and land use in Barra San José, Chiapas, Mexico, in the period 1978-2017. The detection of the changes was carried out by means of a post-classificatory multitemporal study, through the superposition of digital cartographic bases of land use of the series III and VI of the INEGI. Maps of change processes, deforestation rates, and change matrices were obtained. The results indicate a loss of 574 ha of Mangroves in 39 years, with a deforestation rate of -0.41%, where human settlements and agriculture accounted for 90% of the changes. The conversion of Mangroves to grasslands was very marked, showing the fragmentation and loss of habitat to which the forests are exposed in the study area. The results of this analysis should be considered in the establishment of management and conservation policies for this ecological region.

scholarly journals Dinâmica espaço-temporal do desmatamento nos Territórios da Cidadania no nordeste goiano

2019 ◽  
Vol 12 (3) ◽  
pp. 1180
Author(s):  
Helen De Fátima Ribeiro ◽  
Karla Maria Silva de Faria ◽  
Cássio Henrique Giusti Cezare
Keyword(s):  
Temporal Dynamics ◽  
Northern Region ◽  
The State ◽  
Native Vegetation ◽  
Territorial Development ◽  
State Planning ◽  
Deforestation Rate ◽  
Northeastern Region ◽  
Deforestation Rates ◽  
Development Policies

Dados de monitoramento ambiental têm evidenciado migração do desmatamento para a região norte do bioma Cerrado, que até então não despertava tanto interesse do setor agropecuário. Em Goiás, é perceptível o aumento da pressão sobre os remanescentes de vegetação nativa concentrados, sobretudo, na região nordeste do estado. Esse cenário motivou a presente investigação, que tem como objetivo avaliar as taxas anuais de desmatamento entre 2008 e 2017 para os municípios do nordeste goiano a partir do processamento de dados do Prodes Cerrado, disponibilizados pelo Instituto Nacional de Pesquisas Espaciais (Inpe). Os resultados apontam que, dentre as regiões de planejamento do estado, a região nordeste possui a segunda maior taxa de desmatamento acumulado no período de 2008 a 2017 e o maior crescimento no ano de 2017, e as taxas de desmatamento entre os municípios e entre as microrregiões (Vão do Paranã e Chapada dos Veadeiros), onde incidem os Territórios da Cidadania, apresentam diferenças correlacionadas à topografia, presença de distintas categorias de áreas protegidas e de políticas de desenvolvimento territorial específicas. Destacou-se o comportamento de municípios que apresentavam em 2007 maior percentual de área convertida para usos agropecuários e vegetação remanescente em quantidade inferior à exigida pela legislação vigente, e que ainda assim mantiveram altas taxas de desmatamento da vegetação nativa no período analisado. A proximidade com a região de desenvolvimento agropecuário do MATOPIBA também pode estar impulsionando o desmatamento no nordeste goiano. Spatial-temporal dynamics of deforestation in the Citizenship Territories of Northeastern GoiásA b s t r a c tEnvironmental monitoring data have been showing the migration of deforestation to the northern region of Brazilian Savana biome, which until then did not attract much interest in the farming sector. In Goiás, it is noticeable the increase in pressure on the native vegetation remnants concentrated, mainly, in the northeastern region of the state. This scenario led to this investigation, which aims to evaluate the annual deforestation rates between 2008 and 2017 for the Northeast of Goiás Municipalities based on the processing of data from Prodes Cerrado, provided by the National Institute of Space Research (INPE). The results indicate that, among the State planning regions, the northeastern region has the second highest accumulated deforestation rate between 2008 and 2017 and the highest growth in 2017. Also, the deforestation rate among the municipalities and between microregions (Vão do Paranã and Chapada dos Veadeiros), where are the Citizenship Territories, present differences related to topography, presence of distinct categories of protected areas and specific territorial development policies. We highlight the behavior of municipalities that in 2007 had a higher percentage of converted land for farming uses and remaining vegetation lower than required by current legislation, and still maintained high rates of deforestation of native vegetation during the analyzed period. The proximity to the farming development region of MATOBIA may also be driving deforestation in the Northeastern Goiás.Keywords: Goiás, Brazilian Savanna, environmental patrimony, remote sensing, Prodes.

scholarly journals The Effectiveness of China’s National Forest Protection Program and National-level Nature Reserves, 2000 to 2010

2013 ◽  
Author(s):  
Guopeng Ren ◽  
Stephen S. Young ◽  
Lin Wang ◽  
Wei Wang ◽  
Yongcheng Long ◽  
...  
Keyword(s):  
Forest Cover ◽  
National Level ◽  
Mainland China ◽  
Canopy Cover ◽  
Nature Reserves ◽  
National Forest ◽  
Natural Forests ◽  
Forest Protection ◽  
Deforestation Rate ◽  
Deforestation Rates

There is profound interest in knowing the degree to which China’s institutions are capable of protecting its natural forests and biodiversity in the face of economic and political change. China’s two most important forest protection policies are its National Forest Protection Program (NFPP) and its National-level Nature Reserves (NNRs). The NFPP was implemented in 17 provinces starting in the year 2000 in response to deforestation-caused flooding. We used MODIS data (MOD13Q1) to estimate forest cover and forest loss across mainland China, and we report that 1.765 million km2or 18.7% of mainland China was covered in forest (12.3%, canopy cover > 70%) and woodland (6.4%, 40% ≤ canopy cover < 70%) in 2000. By 2010, a total of 480,203 km2of forest+woodland was lost, amounting to an annual deforestation rate of 2.7%. The forest-only loss was 127,473 km2, or 1.05% annually. The three most rapidly deforested provinces were outside NFPP jurisdiction, in the southeast. Within the NFPP provinces, the annual forest+woodland loss rate was 2.26%, and the forest-only rate was 0.62%. Because these loss rates are likely overestimates, China appears to have achieved, and even exceeded, its NFPP target of reducing deforestation to 1.1% annually in the target provinces. We also assemble the first-ever polygon dataset for China’s forested NNRs (n=237), which covered 74,030 km2in 2000. Conventional unmatched and covariate-matching analyses both find that about two-thirds of China’s NNRs exhibit effectiveness in protecting forest cover and that within-NNR deforestation rates are higher in provinces that have higher overall deforestation.

scholarly journals Feeding ground indications are based on species, seagrass density and existence of Dugong dugon in Hiri Island Sea, North Maluku, Indonesia

2021 ◽  
Vol 890 (1) ◽  
pp. 012058
Author(s):  
N Akbar ◽  
I Marus ◽  
R Ridwan ◽  
A Baksir ◽  
R E Paembonan ◽  
...  
Keyword(s):  
Species Conservation ◽  
Species Density ◽  
Survey Method ◽  
Conservation Policies ◽  
Potential Habitat ◽  
Foraging Area ◽  
Seagrass Ecosystem ◽  
Seagrass Ecosystems ◽  
Halodule Uninervis ◽  
Management And Conservation

Abstract Seagrass ecosystems are located between mangrove ecosystems and coral reefs. Seagrass ecosystems are habitats and foraging area for many marine organisms. Eco-biological cycles in seagrass ecosystems are important for maintaining populations of many organisms. Seagrass at Hiri Island is distributed horizontally along the coast. This island is also a location where Dugong dugon is found North Maluku. Dugong dugon is a vurneable species that has been included in the IUCN and Appendix I Cites. This study aimed to identify species, density of seagrass and existence of Dugong dugong. The survey method used quadratic transect method to collect seagrass data. The Results found 6 species of seagrass at Hiri Island. Five species of those seagrass (Cymodocea serrulata, Cymodecea rotundata, Halodule uninervis, Halodule pinifolia, Halophila spinulosa) are known as food of Dugong dugon. The highest species density was shown by Halodule uninervis. The presence of Dugong dugon and its feeding trail was found during field survey. Information on seagrass species and Dugong dugon sightings location can be used for endangered species conservation policies. Management and conservation efforts need to be done to maintain seagrass ecosystem and Dugong dugon potential habitat at Hiri Island.

scholarly journals Preferences for Residential Development Attributes and Support for the Policy Process: Implications for Management and Conservation of Rural Landscapes

2003 ◽  
Vol 32 (1) ◽  
pp. 65-82 ◽  
Author(s):  
Robert J. Johnston ◽  
Stephen K. Swallow ◽  
Dana Marie Bauer ◽  
Christopher M. Anderson
Keyword(s):  
Land Use ◽  
New England ◽  
Policy Process ◽  
Policy Instruments ◽  
Policy Support ◽  
Rural Landscapes ◽  
Southern New England ◽  
Contingent Choice ◽  
Universal Correlation ◽  
Management And Conservation

The rural public may not only be concerned with the consequences of land management; residents may also have systematic preferences for policy instruments applied to management goals. Preferences for outcomes do not necessarily imply matching support for the underlying policy process. This study assesses relationships among support for elements of the policy process and preferences for management outcomes. Preferences are examined within the context of alternative proposals to manage growth and conserve landscape attributes in southern New England. Results are based on (a) stated preferences estimated from a multi-attribute contingent choice survey of rural residents, and (b) Likert-scale assessment of strength of support for land use policy tools. Findings indicate general but not universal correlation among policy support indicators and preferences for associated land use outcomes, but also confirm the suspicion that policy support and land use preference may not always coincide.

scholarly journals Chinese-driven frontier expansion in the Amazon: four axes of pressure caused by the growing demand for soy trade

2020 ◽  
Vol 20 (1) ◽  
pp. 16
Author(s):  
Vanessa Boanada Fuchs
Keyword(s):  
Land Use ◽  
Value Chain ◽  
Preliminary Report ◽  
Brazilian Amazon ◽  
Infrastructure Development ◽  
Chinese Investment ◽  
Deforestation Rates ◽  
The World ◽  
The Relationship ◽  
Municipal Level

Chinese demand for the world’s commodities has the capacity to shape agricultural frontiers in many parts of the world, including the Amazon. This article is a preliminary report on findings concerning the expansion of the agricultural frontier in the Brazilian Amazon driven by increases in soybean production, extension of cropped area, cross-referenced with satellite data on deforestation rates at the smallest possible scale: the municipal level. The study identifies 21 municipalities forming fours axes of frontier expansion in the Amazon, where soycrops may be the cause for displacement deforestation, as it is the case of cattle ranching. Despite the Soy Moratorium, frontiers in the Amazon keep shifting. The article advocates that further research in those four axes is needed to better understand the relationship between those two industries in terms of land use as well as the socio-environmental on the ground impacts. Furthermore, the connections between those areas with present and future infrastructure development in the Amazon, many counting with direct Chinese investment, will be key to the expansion of the soy value chain, bypassing the initial goal of zero-deforestation.***Expansão de fronteira impulsionada pela China na Amazônia: quatro eixos de pressão causados pela crescente demanda pelo comércio de soja***A demanda chinesa por commodities tem capacidade para moldar fronteiras agrícolas em muitas partes do mundo, incluindo a Amazônia. Este artigo é um relatório preliminar sobre a expansão da fronteira agrícola na Amazônia brasileira, impulsionada por aumentos na produção de soja, extensão da área cultivada, cruzadas com dados de satélite sobre as taxas de desmatamento na menor escala possível: o nível municipal. O estudo identifica 21 municípios formando quatro eixos de expansão de fronteira na Amazônia, onde a lavoura de soja pode ser a causa do desmatamento indireto por deslocamento de outras atividades, como é o caso da pecuária. Apesar da Moratória da Soja, as fronteiras na Amazônia continuam mudando. O artigo defende que mais pesquisas nesses quatro eixos são necessárias para entender melhor a relação entre essas duas indústrias em termos de uso da terra, bem como os impactos socioambientais in loco. Além disso, é fundamental traçar as conexões entre esses eixos com o desenvolvimento presente e futuro de obras de infraestrutura na Amazônia, muitas delas com investimento direto chinês, para antever a expansão da cadeia de valor da soja, que pode estar ignorando de fato a intenção inicial de uma cadeia de valor de desmatamento zero.Palavras-chave: Amazônia. Fronteiras agrícolas. Desmatamento. Soja. Demandachinesa.

scholarly journals Non-deforestation drivers of fires are increasingly important sources of aerosol and carbon dioxide emissions across Amazonia

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
William T. Morgan ◽  
Eoghan Darbyshire ◽  
Dominick V. Spracklen ◽  
Paulo Artaxo ◽  
Hugh Coe
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Ecosystem Health ◽  
Global Climate ◽  
Forest Degradation ◽  
Paris Agreement ◽  
Deforestation Rate ◽  
Deforestation Rates ◽  
Drought Conditions ◽  
In Fire

AbstractDeforestation rates have declined substantially across the Brazilian Legal Amazon (BLA) over the period from 2000–2017. However, reductions in fire, aerosol and carbon dioxide have been far less significant than deforestation, even when accounting for inter-annual variability in precipitation. Our observations and analysis support a decoupling between fire and deforestation that has exacerbated forest degradation in the BLA. Basing aerosol and carbon dioxide emissions on deforestation rates, without accounting for forest degradation will bias these important climate and ecosystem-health parameters low, both now and in the future. Recent increases in deforestation rate since 2014 will enhance such degradation, particularly during drought-conditions, increasing emissions of aerosol and greenhouse gases. Given Brazil’s committed Nationally Determined Contribution under the Paris Agreement, failure to account for forest degradation fires will paint a false picture of prior progress and potentially have profound implications for both regional and global climate.

scholarly journals If They Come, Where will We Build It? Land-Use Implications of Two Forest Conservation Policies in the Deep Creek Watershed

Forests ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 581
Author(s):  
Markandu Anputhas ◽  
Johannus Janmaat ◽  
Craig Nichol ◽  
Adam Wei
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Population Growth ◽  
Forest Conservation ◽  
Agricultural Land ◽  
Urban Land Use ◽  
Land Use Type ◽  
Land Uses ◽  
Conservation Policies ◽  
Creek Watershed

Research Highlights: Forest conservation policies can drive land-use change to other land-use types. In multifunctional landscapes, forest conservation policies will therefore impact on other functions delivered by the landscape. Finding the best pattern of land use requires considering these interactions. Background and Objectives: Population growth continues to drive the development of land for urban purposes. Consequently, there is a loss of other land uses, such as agriculture and forested lands. Efforts to conserve one type of land use will drive more change onto other land uses. Absent effective collaboration among affected communities and relevant institutional agents, unexpected and undesirable land-use change may occur. Materials and Methods: A CLUE-S (Conversion of Land Use and its Effects at Small Scales) model was developed for the Deep Creek watershed, a small sub-basin in the Okanagan Valley of British Columbia, Canada. The valley is experiencing among the most rapid population growth of any region in Canada. Land uses were aggregated into one forested land-use type, one urban land-use type, and three agricultural types. Land-use change was simulated for combinations of two forest conservation policies. Changes are categorized by location, land type, and an existing agricultural land policy. Results: Forest conservation policies drive land conversion onto agricultural land and may increase the loss of low elevation forested land. Model results show where the greatest pressure for removing land from agriculture is likely to occur for each scenario. As an important corridor for species movement, the loss of low elevation forest land may have serious impacts on habitat connectivity. Conclusions: Forest conservation policies that do not account for feedbacks can have unintended consequences, such as increasing conversion pressures on other valued land uses. To avoid surprises, land-use planners and policy makers need to consider these interactions. Models such as CLUE-S can help identify these spatial impacts.

scholarly journals Growth of urbanization in Himachal Pra-desh : A statistical analysis

2018 ◽  
Vol 7 (1.4) ◽  
pp. 39
Author(s):  
Ridima Sharma ◽  
Sakshi Tanwar ◽  
Safder Rizvi
Keyword(s):  
Land Use ◽  
Forest Cover ◽  
Developed Countries ◽  
Himachal Pradesh ◽  
Land Resource ◽  
Infrastructure Development ◽  
Land Use Management ◽  
Global Integration ◽  
Development Policies

Cities appear as a major role player in the economy of any area reflecting the global integration of its economy as they house majority of large business groups. Migratory population and urban growth are direct contributors in this economic expansion, particularly in the present-day phase of globalization which in under developed countries causes densification and instability of agriculture and other existing land use thus bringing in the need of a proper land resource management.Focused attention is needed to integrate infrastructure development in various cities and linkages should be established between the creation and management of assets through a system of reforms for long-term sustainability. Himachal Pradesh is a hill state with some most difficult terrains of the country making the preparation of complete cadastral record of land nearly impossible only 80% of land is under revenue records. Thus the amount of habitable land decreases further with around 50 % of the land under forest cover. The aim of the study is to analyze the growth of urbanisation in Himachal Pradesh along with the factors responsible. This growth pattern can later be used to formulate proper land use management and infrastructure development policies for equitable development of the area.

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