Questions related to Forest Management
I want to quantify ecosystem services for a temperate forest type. I am wondering how one can "quantify" qualitative ecosystem services such as aesthetic values, recreation, etc. in a coherent statistical framework. Relevant references on this topic and ideas will be appreciated.
Is there any literature or report that I can reach about the allowable cut methods that are currently being used in different countries? Since there are many methods or formulas, I wonder the situation in country or region base. Any information for a specific country is also welcome.
Bioenergetic use of Araucaria angustifolia branches
Araucaria angustifolia was widely exploited in the past for wood purpose
and currently it is on the red list of endangered species in Brazil
As far as we know, there are no data on the extent of this uncontrolled exploitation (Records suggest that its original extension has been reduced to just 12%).
Currently it cannot be cut or managed,
even the branches - which fall naturally at a certain time are not used.
So, we have the following questions:
Is it possible to see the Araucaria tree in a profitable and ecological way at the same time?
How can the use of branches contribute to the conservation of species?
Can the use of co-products (branches) save Araucaria from extinction?
These and other questions are addressed in this study carried out at the State University of Centro Oeste, PR - Brazil and can be accessed FREE of charge for 50 days
by the link
Within what minimum and maximum values does the (statically significant) correlation between annual growth of the rings and climatic variables (eg: temperature and / or rainfall) vary in beech (Fagus sylvatica) under the European climates?
Today forest managers are looking for an instruction for multiple use planning. Forest planning for only wood production purpose is not acceptable in sustainable development lessons. However I did not find an international instruction for multiple use planning in forests. If you know any please share your findings.
I found the Assemblage theory mostly descriptive and thought of how it can help analyse community forest management outcomes when the forest management sructure and actors are seeing as an Assemblage?
- I have observed from reports in India that more Human Elephant conflict is there in Central and Eastern India compared to Southern India. This raises a question why it is so? one strong reason comes to my mind is due to wrong forest management practices and regeneration approach? We find that elephants are in good density in Central and Eastern India in Sal(Shorea robusta) dominated forest habitats. So, why elephants are out to village lands from the forest in these areas? This is a matter of intensive research. One hypothesis is that the concerned department has done exotic species plantation in these forests on periphery, may be upto 500m to 1 km inside forest depending upon the scheme made by them, therefore the seedlings of local species in the periphery could not compete and these areas are left without fodder and food species of elephants. Regeneration is badly affected. in addition to exotics, at some places one finds Teak(Tectona grandis) plantation in Sal dominated peripheral forest areas also. All these species have good content of aromatic chemicals in stem,leaf,fruits and flowers(may be roots also). So, an elephant coming to this area in periphery gets agitated and disoriented first due to absence of food and then due to smell of aromatic compounds, which makes the animal to come out of these areas and the light of outside forest guides them to enter into villages. Here begins the conflict.
Joshua Plotnik, a comparative psychologist at Hunter College, City University of New York, decided to see whether six captive Asian elephants (Elephas maximus) could use odors alone to make quantitative judgments. Josua Plotnik says and I quote,"Understanding the sensory skill, could help preserve a species in decline. Fewer than 40,000 Asian elephants remain in the wild—and “we’re running out of time to save them”. “They’re remarkably intelligent animals we still know very little about.”
I would love to interact on this subject, and research input/suggestions given here may become a tool in hands of animal managers and researchers to save this species.
Forest Management Plans for National Forest are available at the Forest Service Web page, but any ideas to better search for private plans? for example from companies, city, town, county, nature center, and more?
Recent research has suggested that reducing the density of smaller, dense tree stands can elevate streamflows in the dry season. This is a critical issue in NorCal where past forest management has resulted in dense young stands of trees that use more soil water than larger, less dense tree stands. Modest increases in summer low flows can result in far better conditions for juvenile salmonids.
These methods may be useful in modeling the long term wood supply in different applications such as patch work or Woodstock.
I'm conducting a research to measure the impact of Joint Community Forest Management on forest sustainability in west java-Indonesia by using perception analysis. I used multiple regression analysis and determined independent variables such as income generating, capacity building, social capital in community forest group, conservation actions, amount of managed area of forest.
I need advise from experiences in other location or country to determine a significant variable to measure it.
Any suggestion to improve my research?
Hello Dendrochronologist! We are working in the tropical forest management issues, in which we are stuck in finding the relationship between age and growth of Shorea robusta species. We would highly appreciate your support to let us know the method for dendrochronological analysis especially incase of tropical hard wood species.
Does anybody know where I could find some spatial data about the evolution of forest stand from its establishment to timber harvesting?
More in general I would need a dataset for a plot with the spatial coordinates of each tree and the dbh measures every 5 or 10 years. My idea is to have this dataset to analyse how the structure can change. I'm looking for managed and unmanaged stands, everywhere and with any kind of forest management (productive, protection, biodiveristy conservation).
I know how to simulate spatial point patterns but the difficult thing is to simulate the growth of trees properly and according to their spatial distribution and neighbors. For this reason I'm looking for empirical data.
Thanks in advance
What is needed for forest to be well managed for adaptation and mitigation to climate change?
JFM has almost everywhere been painted as a very good policy for forest conservation and NTFPs but what about the people who are a part of it?Are the benefits from JFM equally distributed to all?
I would like to know the main advantages of ecosystem services when compared to timber forest management. And what alternative of forest resources management presents greater economic returns?
The pace at which the private sector is engaging in climate change related activities as well as carbon trade is yet to be convincing? Most forest concessionaires still find it profitable to engage in logging their forests for timber rather than protecting the same forest for carbon. This renders the 'logged to protected forest' concept still unrealistic. New pathways are seemingly needed......
It is necessary to know the dynamics and rates of growth of Ulmus pumila thickets on abandoned agricultural lands and on urban plots after abandoned construction works. What methods to apply to get reliable informative data. In terrestrial conditions without aerial photography
Dear everybody, My name is Ali Rahmat. Now I have
Now I try to me make review paper about the effect of forest cover/ forest treatment on water yield. To make strong my paper I need picture or image of afforestation and etc, which is not published yet in publication. If you have the picture and give to me, that is very helpful for me, and very thank you for that.
Thank you very much for your help or your kind attention
I am searching for any standard figures showing the amount of fuelwood can be harvested from 1 ha area. My study area is Bangladesh. So data regarding this region will be very helpful. I found one research paper from Nepal indicating 38.81 tons of fuelwood from 1 ha forest area. But it is not clear either its total harvest of the trees or in a sustainable way. I am looking for the data cap of sustainable fuelwood harvest from 1 ha of forest land.
Thanks in advance.
I am helping the American Forest Foundation look for successful behavior change programs with measured impacts that have involved one or more of these characteristics, preferably with audiences that were rural and mostly over 65 years old.
We’re looking for programs in the following subject areas, but would consider other areas as well.
· Climate change mitigation
· Coastal and marine conservation
· Landscaping and pesticide use
. Substance abuse and addictions
· Sustainable agriculture
· Wildlife conservation and species at risk
Thanks for your consideration
One of the challenges to reduce size of extensive paddocks (>500 ha) in Paraguay is the high costs of fencing and the need to cut hard wood from forest islets to construct conventional fencing, which leads to deforestation of native woodlands. Cattle ranchers need fencing to protect wetlands (as required by law), or to assure a better use of native grasslands, in rotational schemes. One option in literature is to establish live fences, however this is not easy when the cattle is actively grazing and paddocks cannot be abandoned for 3-5 years. This points to the need of a non-edible tree species that can grow despite current active grazing. What we're looking for is to test different species in a particular productive setting. Any help, articles, or experiences of particular species would be greatly appreciated. We are mostly focused in Tropical and Subtropical areas.
I am seeking info about invasiveness of Tetraclinis articulata (syn. Callitris quadrivalvis).
I am aware of Rourke (1991) and Richardson & Rejmánek (2004) references.
Has anyone reliable info (local reports, notes) suggesting this tree established and became naturalized beyond its natural range?
Summer of 2016 was a very dry season and excellent for forest harvesting in New England, and especially in New Hampshire. This is a good time to asses any positive impacts on our forests from current harvesting methods.
New England forestry appears to be most efficient when trees are removed in thinnings created by skidder trails alone. Once cutting equipment extends beyond the edge of the skidder trail edge, the reach of the equipment is limited and cutting is slowed by the care needed to harvest individual trees within stands. This reach is commonly used in all good forest harvesting systems.
Cut-to length contemporary systems are able to reach further into stands and thin stands of trees more efficiently than many other mechanical harvest methods. Regardless of the type of harvesting equipment, many non-overstory removal tree harvests in New England are made with a very high percentage of creation of skidder trails through the forests rather than removal of individual trees and small groups.
Changes in canopy cover from these methods increases light to the forest floor which can increase seedling germination and competition success for any intermediately shade tolerant or shade intolerant tree species. Effects may also include an increase in regeneration species diversity throughout each stand of timber. Additionally, standing timber may show a variety of responses to that type of treatment. Each tree species responds differently, and so this question is in relation to forest cover types most commonly found in New England.
Is creation primarily of skidder trails as a stand thinning treatment showing increase of residual timber basal area tree growth (including responses in forest health) within 10-acre or larger New England forest stands?
The inventory for the CBM-CFS3 (carbon balance model from the canadian forest sector) requires volume-age curves for each stand and I cannot figure out how to obtain these curves.
I can find information about dbh, aboveground biomass and volume but I cannot find how this relates to age. Can anyone tell me what I am missing here? I am specifically looking at mexican oaks (Quercus castanea, Q. crassifolia, Q. laeta, Q. obtusata y Q. rugosa).
The model developers, Kurz et al. (2009) state: "Forest management agencies and industry have built up large libraries of yield tables to describe the accumulation of volume in the merchantable portion of tree stems as a function of stand age. To enable the use of these data sources, CBM-CFS2 was modified from using biomass over age to CBM-CFS3, that uses merchantable volume over age data to simulate growth."
Where can I find these tables with volume-age tables?
I want to estimate the rate of soil respiration in the Hyrcanian forest by following the protocol of placing series of 20 gr soil (stored in the fridge) into series of jars. Then I put 20 ml (0.2 Molar) of NaOH in each vial and all of them were placed individually in separate jars, also, all of them were sealed completely. After 7 days I opened the jars and added 2 ml (0.2 Molar) BaCl2 into the vials and then added 3 drops of phenolphthalein until it became purple and then I added HCl (0.1 Molar) until it became white!
The point is my result does not seem correct and the amount of acid that I used for my titration in the control sample is fewer than some of my other samples and this feels absolutely wrong. Does anyone have a suggestion and advises for me to estimate soil respiration in my research?
I would like to have access to the shapefile related to the spatial distribution of olives crops around the Mediterranean developed by Gaussen and De Philippis – FAO. This is the map -> (take a look to the link)
Any idea? I have already contacted one researchers from this publication but they hadn't, because unfortunately it seems that Gaussend and the rest of the authors for the original one are already disappeared.
Thanks for your time!
How effective are bioclimatic models in projecting vegetative species diversity changes? What algorithms are used to reduce effect of other environmental factors?
I am curious as to whether there is any literature on how in-stream coarse woody debris levels may change in relation changes in species composition. In particular I am working in a system where trees are frequently "caught" in an invasive woody shrub.
It is easy to measure dead wood on the ground, or standing (snag), but what about actually caught in other live material?
Recently, I've collected some published biomass equations for a species, and then attempt to develop generic equations for estimating forest inventory-based regional forest biomass. So, how to develop generic equations based on published ones? Could you recommend some literature or share some suggestions? Thanks a lot.
In traditional agroforestry system for soil carbon does 4 sample plot is appropriate or not is it statistically correct?
I am also aware of what the SFI and FSC programs formally suggested in their standards.
A video shared on Facebook wherein airplanes were dropping seedlings onto a deforested area in Thailand in hopes that the forest would be restored. However, wouldn't this be a great enough disturbance to trigger an adaptation, especially in the soil? Would there be no need for earlier successional species to be planted first in order to facilitate succession instead of suddenly bombarding the area with late-succession species?
Link is attached.
I have faced with insufficient information, written in English, for my current research. Anyone in our network aware of recent publication either book or journal article about natural resource management particularly protected area management (social aspect ), and forest management in Thailand is asked to share his/her information with me. Your cooperation is appreciated in advance.
Coppicing is an English term for a traditional method of forest management which takes advantage of the fact that many trees make new growth from the stump or roots if cut down. In a coppiced forest, young tree stems are repeatedly cut down to near ground level. In this situation, among Crown Cover (C.C), Diameter at Breast Height (DBH), Heigh (H), Crown Area (CA), Number of Sprouts (NS), Qualityof Sprouts (Qs), Spatial Disriburion of Sprouts (SDS) and othe parameters,What are the main biometric indicators?
Due to the social, economic and environmental functions in forest management, which of Multi Criteria Decision Making methods is better for forest management?
Recently forest fires are in Himalayan temparte and subtropical area of India mainly in Uttrakhnad state and again there will voice for eradication on chir pine from the area?? The whole issue will be viewed as chir pine main culprit but its not so and local community response, migration, lack of monitoring etc are also reasons. How these recurrent fires can be minimise or check.
In many of forestrs in undevelopped countries have socio-economic problems that caused managers make an appropriate decisions in forest management. Local people have many dependence on forest resoureces but they have traditional knowledge that is possible use of this knowledge. therefore forest management in this conditions have complexity. Please guide me how can we avoid the deforestation in this conditions?
Why is better or easy to clear a heavy forest than to eliminate exotic alien invasive species? As per many research results, recommendations, there are of course, chemical, physical (manual), and biological methods to remove or at least to reduce their rate of invasion. But still none of these methods is effective to do so. Why?
I want to estimate forest biomass of a dry temperate region without using any secondary data... I'm on the lookout for a methodology that would help me estimate forest biomass using only the satellite imagery...
I want to analyse the factors according to different physical and socio-economic conditions, like Forest - Society interface in Mangrove Forest, Hill Forest etc.
As I'll only need this a couple of times, and don't have a fish eye lens, I'm looking for other solutions.
I have to revue briefly systems to evaluate forest damages caused by ungulates and to estimate the financial costs of that damages.
My context is Walloon Region (temperate deciduous forest). Damages concern especially natural regenerations of broadleafs and bark peeling of coniferous stands
I'm interested in methods with a sclale going from forest stand to managment zones for wild ungulates.
Any information about existing systems is welcome.
During the debate on forest management it was stated that decomposing spruce wood left on fertile soils decreases their pH and influences pH of the soil water. Intuitively I would expect no effect or the opposite effect (increase of the pH) but I can't find any literature on the subject. Does decomposing wood influence soil pH? What is the process behind? Do tree/wood species differ in their effect (some increase and some decrease soil pH)? Are there any published papers on that subject?
old-growth forests can be located in conservation stage of CAS (complex adaptive system-cycle). However, the connectedness, potential are high, and system's resilience is low. So, to push the system out of this stage need a disturbance to push out of the system and fall into reorganization phase in the CA cycle. So given the stability of old-growth forests, could this be considered in a rigidity trap if we take into account the system feature?
As is well known, there are many places in Sudan that are covered with mesquite trees and they have undesirable effects such as depleting the groundwater storage. On the other hand they have some positive effects such as providing charcoal for cooking, but their negative impact is very big. Now the direct question is: What is the best method to fight this tree?
We want to explore the reasons behind the floristic patterns of epiphytes in the two different forest types (intensively managed and rarely managed), which will help to understand and forecast changes in canopy diversity following human activities, and to manage and restore the canopy communities in a time of rapidly changing climate.
I'm studying on a paper which is about Polish and Turkish forestry and forest industry these days. I need to get some information about Poland forestry.
If you know, could you please share with me?
I'm interesting the design process of some goods or services produced by foresters. Could you share your experiences on it? If somebody in educational institutions share their lecturing background, I'll be grateful for their contribution.
All the best
I am analyzing ecosystem services in riparian forests and need fast and economic methodologies to identify biodiversity and ecosystem services Soil and water conservation
In savannas of the humid Chaco in Paraguay, we have observed (in the course of three years) that wild fires occurring in native grasslands are stopped when reaching forests islets. The natural landscape of this area is dominated by grasslands, and forests are usually present in naturally occurring islets. However these forests are usually deforested to open to new grazing areas. Can this be yet another 'environmental service' of forests at the local level, to function as fire breaks? We have not found mention of this in literature and would like to know of similar experiences.
The work involves large scale forest cover changes and fragmentation analysis, where area calculations need to be more accurate. Its is more of a tradition, atleast here in India to work with LCC. Any suggestions and advice on this could be much of help.
In the Czech Republic Forest Management Forensic Experts commonly use orthophotomaps, aerial photography products, accessible online. Satellite images usage is rare in their practice. I have not found any mention of Forensic Experts using the nowadays tools to gain mensurational variables from remote sensing data. In that case we are able to obtain data which are describing the stand that was already cut down.
We are investigating the destruction of the forest
and factors contributing to the degradation of Hyrcanian forests in Iran.
Farming is considered to be the first cause of deforestation in the tropics. Our research team is currently looking for farming solutions that may replace conventional small- and large-scale farming in Brazilian rainforests. Our current assumption is that vertical farming, mainly conceived for urban areas, may be an alternative that has a much smaller impact on the forest because of their small footprint and diffuse spatial distribution (vertical farms scattered around the forest, instead of being clustered), thus drastically reducing deforestation. We are confronted with the following questions:
- Is there any knowledge on how productive vertical farms are in tropical forests?
- What kind of new problems would vertical farms bring for farmers?
- Can current farming products be stacked vertically?
- Can vertical farming be realised with low-tech solutions?
We would highly appreciate any feedback on these questions.
As we know, coppice species like Quercus sp create several stems per tree making them somewhat hard to estimate their hydrological processes accurately. Does anybody have any ideas as to how to do it?
Take a look at attached file to see a coppice tree.
It would be interesting to know if the cost of fertilizer is reset at the end of turn for the additional increase wood generated fertilizer. Always assuming that the fertilizer is applied after the last thinning and trees that will be part of clearcutting.
I have mensurational data (dbh, crown height, tree height) of stands with up to 14 temperate broadleaves: (the most important being Quercus cerris, Quercus robur, Fraxinus ornus, Acer campestris, Carpinus betulus, Corylus avellana, Prunus avium) and I am interesting in species-specific modelling leaf area of trees.
I have no allometric equations for the stands, but when searching about it in literature, the majority of equations available focused on (total) above-ground mass. I am at least interested in leaf biomass. Can you help me?
For short rotation forestry, which density per hectare provides the greatest amount of biomass in 5 years for poplar sp.?
Many forest conservation goals (not to mention cultural, landscape, hydrological & urban shade goals) rely on a continual presence of big, old trees. Part of our sustainable stewardship responsibilities must surely be to begin growing the big, old trees of the future. Most exercises in predicting impacts of climate change don't go past 2100 - because that's the limit of the climate forecast data. But our objective requires trees to live and grow for several centuries - well into the 'dark zone' beyond 2100. What should be our logical response to having to make decisions now in the context of such uncertainty? Carry on as usual with the historically native tree species? Adjust genetic origins or management practices? Try lots of different combinations to avoid 'putting all our eggs in one basket'?