scholarly journals Cambio Multitemporal De La Cobertura Vegetal Y Fragmentación En La Reserva Ecológica “Mache- Chindul” Ecuador

2016 ◽  
Vol 12 (30) ◽  
pp. 152
Author(s):  
Jose Luis Muñoz Marcillo ◽  
Marcelo Andrade Mesía ◽  
Betty González Osorio

The "Mache-Chindul" -REMACH- Ecological Reserve is one of the 33 natural areas that make up the National System of Protected Areas - SNAP-, administered by the Ecuadorian government through the Ministry of Environment, MAE. This ecological reserve protects one of the few remnants of tropical dry Ecuador forest, as well as a variety of endemic species of flora and fauna, many of which are endangered, the study allowed us to determine the multitemporal cover change plant (natural forest, pasture and cultivated timberline) and fragmentation of forest area between 2002- 2012 with the implementation of programs GIS and ArcGIS Desktop 9.3 Er Mapper. Information of the study area was lifted from satellite Landsat 7 ETM (spatial resolution 30 m per pixel) to the same as a composition of pseudo color (RGB-431) and a classification applied supervised using the method of Minimum Distance. The ecological reserve has an area of 53,662 hectares of natural forest, equivalent to 44.7 % of total area, 23.1 % is regeneration or recovery of natural forest with an area of 27,707 hectares; the natural forest has undergone several interventions, considering the most affected and the peripheral area south of the rivet end, fragmentation was of 38,632 was equivalent to 32.2 % of the total area of the reserve, in the category of cultivated grass product the increase of the agricultural frontier and decreasing natural forest cover from the illegal extraction of wood, also the pressure from timber companies and colonization fronts, concerning the population index this has decreased from 5.71 to 5.39 hab / km2.

Forests ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 889 ◽  
Author(s):  
Adrianto ◽  
Spracklen ◽  
Arnold

Forest and peatland fires occur regularly across Indonesia, resulting in large greenhouse gas emissions and causing major air quality issues. Over the last few decades, Indonesia has also experienced extensive forest loss and conversion of natural forest to oil palm and timber plantations. Here we used data on fire hotspots and tree-cover loss, as well as information on the extent of peat land, protected areas, and concessions to explore spatial and temporal relationships among forest, forest loss, and fire frequency. We focus on the Riau Province in Central Sumatra, one of the most active regions of fire in Indonesia. We find strong relationships between forest loss and fire at the local scale. Regions with forest loss experienced six times as many fire hotspots compared to regions with no forest loss. Forest loss and maximum fire frequency occurred within the same year, or one year apart, in 70% of the 1 km2 cells experiencing both forest loss and fire. Frequency of fire was lower both before and after forest loss, suggesting that most fire is associated with the forest loss process. On peat soils, fire frequency was a factor 10 to 100 lower in protected areas and natural forest logging concessions compared to oil palm and wood fiber (timber) concessions. Efforts to reduce fire need to address the underlying role of land-use and land-cover change in the occurrence of fire. Increased support for protected areas and natural forest logging concessions and restoration of degraded peatlands may reduce future fire risk. During times of high fire risk, fire suppression resources should be targeted to regions that are experiencing recent forest loss, as these regions are most likely to experience fire.


Human Ecology ◽  
2021 ◽  
Author(s):  
Liz Alden Wily

AbstractI address a contentious element in forest property relations to illustrate the role of ownership in protecting and expanding of forest cover by examining the extent to which rural communities may legally own forests. The premise is that whilst state-owned protected areas have contributed enormously to forest survival, this has been insufficiently successful to justify the mass dispossession of customary land-owning communities this has entailed. Further, I argue that state co-option of community lands is unwarranted. Rural communities on all continents ably demonstrate the will and capacity to conserve forests – provided their customary ownership is legally recognized. I explore the property rights reforms now enabling this. The replication potential of community protected forestlands is great enough to deserve flagship status in global commitments to expand forest including in the upcoming new Convention on Biological Diversity (CBD).


Geomatics ◽  
2021 ◽  
Vol 1 (3) ◽  
pp. 335-346
Author(s):  
Do-Hyung Kim ◽  
Anupam Anand

Evaluation of the effectiveness of protected areas is critical for forest conservation policies and priorities. We used 30 m resolution forest cover change data from 1990 to 2010 for ~4000 protected areas to evaluate their effectiveness. Our results show that protected areas in the tropics avoided 83,500 ± 21,200 km2 of deforestation during the 2000s. Brazil’s protected areas have the largest amount of avoided deforestation at 50,000 km2. We also show the amount of international aid received by tropical countries compared to the effectiveness of protected areas. Thirty-four tropical countries received USD 42 billion during the 1990s and USD 62 billion during the 2000s in international aid for biodiversity conservation. The effectiveness of international aid was highest in Latin America, with 4.3 m2/USD, led by Brazil, while tropical Asian countries showed the lowest average effect of international aid, reaching only 0.17 m2/USD.


Author(s):  
A. Sokolov

This paper analyzes the patterns of anthropogenic transformation of landscapes in the Brest region, as measured by value indicators such as forest cover (and geo-ecological coefficient based on it), the density of rural population, the share of residential landscapes. Correlation between nature properties of landscapes underlying their classification, and these indicators was detected. It was found that the genera of landscapes, which represent the maximum disturbance, are secondary-moraine and moraine-outwash landscapes, the subgenera of landscapes are with a cover and a discontinuous cover of glacial sandy loams. The least disturbance is distinctive for secondary water-glacial and alluvial terraced landscapes and among genera – with superficial cover of water-glacial sands and with superficial bedding of peat and sand. The necessity of protected areas network optimization is shown. The results showed a significant imbalance between the ecological condition of the landscape which belong to certain classification groups and their representation in the protected areas system of the region. Landscapes with the worst ecological situation, as a rule, occupy a small proportion among all landscapes of protected areas. This case does not allow carrying out fully the tasks of protection and restoration of the diversity of ecosystems of the region. Among genera share of protected areas is much greater than the share of the region generally occupy wetland and floodplain landscapes. Moraine-outwash landscapes, characterized by a critical environmental condition are not represented in the protected areas system. Among subgenera areas in protected territories are far larger than in the region are characterized for landscapes with superficial stratification of peat and sand, considerably smaller – for landscapes with a cover of water-glacial sandy loams and loams, ecological condition of which is estimated as critical. Thus, the existing network of protected areas in Brest region needs to be optimized be including those genera and subgenera of landscapes, which are characterized by the worst environmental condition and restore these areas to natural communities.


2019 ◽  
Author(s):  
Luisa Feliciano-Cruz ◽  
Sarah Becker ◽  
Kristofer Lasko ◽  
Craig Daughtry ◽  
Andrew Russ

Agromet ◽  
2010 ◽  
Vol 24 (1) ◽  
pp. 33
Author(s):  
Naimatu Solicha ◽  
Tania June ◽  
M. Ardiansyah ◽  
Antonius B. W.

Forests play an important role in global carbon cycling, since they hold a large pool of carbon as well as potential carbon sinks and sources to the atmosphere. Accurate estimation of forest biomass is required for greenhouse gas inventories and terrestrial carbon accounting. The information on biomass is essential to assess the total and the annual capacity of forest vigor. Estimation of aboveground biomass is necessary for studying productivity, carbon cycles, nutrient allocation, and fuel accumulation in terrestrial ecosystem. The possibility that above ground forest biomass might be determined from space is a promising alternative to ground-based methods. Remote sensing has opened an effective way to estimate forest biomass and carbon. By the combination of data field measurement and allometric equation, the above ground trees biomass possible to be estimated over the large area. The objectives of this research are: (1) To estimate the above ground tree biomass and carbon stock of forest cover in Lore Lindu National Park by combination of field data observation, allometric equation and multispectral satellite image; (2) to find the equation model between parameter that determines the biomass estimation. The analysis showed that field data observation and satellite image classification influencing much on the accuracy of trees biomass and carbon stock estimation. The forest cover type A and B (natural forest with the minor timber extraction) has the higher biomass than C and D (natural forest with the major timber extraction and agro forestry), it is about 607 ton/ha and 603 ton/ha. Forest cover type C is 457 ton/ha. Forest cover type D has the lowest biomass is about 203 ton/ha. Natural forest has high biomass, because of the tropical vegetation trees heterogeneity. Forest cover D has the lowest trees biomass because its vegetation component as secondary forest with the homogeneity of cacao plantation. The forest biomass and carbon estimation for each cover type will be useful for the further equation analysis when using the remote sensing technology for estimating the total biomass and for the economic carbon analysis.Forests play an important role in global carbon cycling, since they hold a large pool of carbon as well as potential carbon sinks and sources to the atmosphere. Accurate estimation of forest biomass is required for greenhouse gas inventories and terrestrial carbon accounting. The information on biomass is essential to assess the total and the annual capacity of forest vigor. Estimation of aboveground biomass is necessary for studying productivity, carbon cycles, nutrient allocation, and fuel accumulation in terrestrial ecosystem. The possibility that above ground forest biomass might be determined from space is a promising alternative to ground-based methods. Remote sensing has opened an effective way to estimate forest biomass and carbon. By the combination of data field measurement and allometric equation, the above ground trees biomass possible to be estimated over the large area. The objectives of this research are: (1) To estimate the above ground tree biomass and carbon stock of forest cover in Lore Lindu National Park by combination of field data observation, allometric equation and multispectral satellite image; (2) to find the equation model between parameter that determines the biomass estimation. The analysis showed that field data observation and satellite image classification influencing much on the accuracy of trees biomass and carbon stock estimation. The forest cover type A and B (natural forest with the minor timber extraction) has the higher biomass than C and D (natural forest with the major timber extraction and agro forestry), it is about 607 ton/ha and 603 ton/ha. Forest cover type C is 457 ton/ha. Forest cover type D has the lowest biomass is about 203 ton/ha. Natural forest has high biomass, because of the tropical vegetation trees heterogeneity. Forest cover D has the lowest trees biomass because its vegetation component as secondary forest with the homogeneity of cacao plantation. The forest biomass and carbon estimation for each cover type will be useful for the further equation analysis when using the remote sensing technology for estimating the total biomass and for the economic carbon analysis.


2016 ◽  
Vol 24 (1) ◽  
pp. 157-163
Author(s):  
V. І. Nikolaichuk ◽  
M. М. Vakerich ◽  
M. V. Bilkey ◽  
O. P. Chechuy ◽  
I. Voloshchuk

Ukraine has transformed into one of the most environmentally dangerous countries in the world due to the high concentration of industrial production and agriculture and predatory use of natural resources. The current ecological situation in Ukraine is characterized by a deep ecological crisis, which is caused by the laws of operation of the command economy of the former USSR. The majority of the environmental and social indicators of Ukraine are among the worst in Europe. The Carpathian Mountains are among the most significant and interesting landscapes in Europe from the geological and geomorphological, scenic and biological perspectives. The giant arc of the Carpathians begins in southern Romania and passes through Ukraine, Slovakia, Poland, the Czech Republic and Hungary to Austria, crosses all Eastern and Central Europe. A third of the forest reserves of Ukraine are located in the Ukrainian Carpathians, at 53.5% the percentage of forest cover of the area is among the highest in the country. About 50% of the gene pool of Ukraine’s plants, many species of trees and medicinal plants grows there. The geographical location and large area of the rich natural heritage of the Carpathians have multifaceted importance for the conservation of biological, phytocoenotic and landscape diversity and maintaining the ecological balance in the central part of our continent. As with the Alps mountain range, this is an important ecological corridor between Western, Central and Eastern Europe, which promotes the migration of species and their spread into lowland landscapes. In order to preserve biodiversity an inventory of virgin forest ecosystems should be made and strict measures for their protection should be enforced. It is necessary to continue the practice of establishing bilateral areas in cross-border protected areas in order to combine efforts to solve pressing environmental challenges. Conservation of the Carpathians Biodiversity is an urgent problem. Structural changes in the economy of the region are expected to strengthen the recreational value of the Ukrainian Carpathians for the public not only in our country but also in Central and Eastern Europe, reducing the technogenic loading. International cooperation of all countries of the Carpathian region is imperative. The development of tourism in the Carpathians is highly promising, but this should be civilized tourism, taking into account the environmental sustainability of the recreational areas and protected areas. 


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