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Forest Monitoring - Science topic

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Recent works point to the hypothesis that global climate change will lead to the decline of cloud forests due to persistent cloudiness occurring only at higher altitudes; therefore, precluding the presence of hight levels of humidity, horizontal precipitation, and increased solar radiation. Some ongoing experiments consist in installing barriers blocking the passing of clouds in a tract of forest and monitoring the effects of such barriers in the forest behind them. On the other hand, the main cause of decline of cloud forests is deforestation for land change uses which could be a faster process than the potential effects of climate change. So, at least at local scale, destruction of cloud forest could have an effect on climatic conditions, increasing the impact of the effects of climate change. For example, what could happen with the persistence of cloudiness, temperature, and effect of winds if we suppress the cloud forest from a given place?. It will the desaparition of the forests affect the patterns of cloudiness, maybe by effects of the wind not having a forest barrier, increased temperatures, or changes in evapotranspiration? I would like to discuss this topic, putting aside, if possible, the other negative impacts of deforestation.
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One of the negative impact of deforestation is low productivity where aboveground biomass is very high. Could you please check this two paper? Although, these papers not only deals with deforestration but also destruction of sub-alpine forest in High Himalaya.
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What if current practice of National Forest Inventory switches to National Tree Inventory, considering the importance of Trees outside forests and their impact on livelihood of local people and potential carbon trade? 
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I am retired from USFS. From my recollection, USFS leads the main national forest inventory in cooperation with state forestry, forest industry, other land management agencies, etc.  Long term plots are sampled and evaluated by FIA inventory, including national, state and private industry forest lands.  Beyond that, landowners and managers including urban areas may conduct inventories to suit there own needs.  Most of these inventories are not published, but may or may not be available.  Most inventories are designed to address forests or forest stands, as opposed to individual trees.  As needed, individual trees may get attention on an as needed basis, as appropriate in sampling of plots, and to some degree based on importance to landowner or public, in response to storm, fire or other damage, or in response to management plans.  I believe some of these data are applied to your questions on employment and carbon in various reports from managers, researchers and others.  
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What information should be included in a National REDD+ registry?.How should it interact with other databases like National Forest Monitoring System?
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Drivers of deforestation
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I am working currently in one project connected with forest monitoring and to answer this question I could not find a publication jet.
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One publication may be of use:
Huggard, D.J. 1999. Static life-table analysis of fall rates of subalpine fir snags.  Ecological Applications 9:1009-1016.
 We have studied fall rates of ponderosa pine after a severe bark beetle attack in 2005  killed over 90% of stems in multi-aged and sized stands. Only the largest dead stems >50 cm are standing after 10 years. The mechanism is complex but appears to be related to invasion of sapwood by decay fungi immediately after mortality. Stems with a high proportion of sapwood basal area (ie small young stems in open grown conditions) fell over within 5 years. Large old trees (>80 cm and 200 yrs+) with a high proportion of heartwood have the lowest risk of falling.
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I've been search any literatur that support our question. But until now i'm not ye find it.
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Hello
Dear Fransisca,
You can use diversity index to predict future forest condition for any forest types.
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I hope the radar backscatter is influenced by moisture content, orientation of the object and di-electric properties of the objects under study. I exactly would like to calculate the two way attenuation of the radar backscatter. 
I am trying to understand the interaction of SAR waves with the natural phenomenon, i would like to know quantitatively how much of the energy is attenuated?
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The answer is no simple at all. The media is not homogeneous. Of course if one approximate it as an homogeneous one - an equivalent permittivity must be determined and then the task is similar to the one can be found in a good electromagnetic textbook
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I am working on forest monitoring dynamics.
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I know we can not identify the species to 30 meters. but majid looking for accessible images , which it can work normally. but from Landsat, he can know the plant communities.
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Both vegetation canopy characteristics and environmental conditions drive ET and weighing lysimeter are appropriated for water balance studies. However, there are some practical issues in the method when lysimeters are used in sites under grazing management. Under such conditions, animals may produce disturbances either on the lysimeter or eventually on the data. Then, fencing the lysimeter and proceed with manual clipping could be an appropriate alternative.
Have you managed lysimeters under similar conditions?
Can you give some feedbacks based on your experience?
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We published a paper on the effects of trampling on surface runoff in an alpine grassland with quite sandy soil some time ago, which might be interesting for you (Leitinger, G., E. Tasser, C. Newesely, N. Obojes & U. Tappeiner (2010) Seasonal dynamics of surface runoff in mountain grassland ecosystems differing in land use. Journal of Hydrology, 385, 95-104.)
Concerning the simulation of trampling, a Swiss colleague got some sheep hoofs and fixed them on her shoes to simulate trampling. To apply realistic pressure on the soil you probably have to step on the lysimeter, and accept a disturbance of the measurements for a certain time period. just make sure that the balance is not damaged by the additional weight.
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I am working on some plant species from high altitude Himalayan region. I have done soil moisture content test, organic carbon, nitrogen test for those plants. I think there is a relation between organic carbon, nitrogen and different forest type. How to measure the aspect value?
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This will take a few days, but I will send the papers, definitely
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I have a set of questions regarding equipment for sampling tree cores (dendrochronology).
So to those with experience in dendrochronology, I ask the following:
1-The Haglöf increment borer seems to be a popular choice, would you recommend it?
2-What length of the instrument is desirable, I see options ranging from 4inch to 28 inch. I would need to be able to properly sample tress at least 60 years old (eastern Canada, Balsam fir, spruces, red maple, tamarack, etc...).
3-What width of bit/core would I need if it is important for me to be able to not only count growth rings, but measure the perpendicular width of grow rings? I see options ranging from 0.169 inch (4.3mm) to 0.2 inch (5.15mm)?
4-For a scenario where 2 borers would be used almost daily over a 3-month field seasons, what types and quantities of spare parts would be needed. I was thinking maybe a third unit to serve as spare, but are there specific parts that tend to break or wear more quickly, like the bit for example?
5-What is better for the bit, 3- or 2-thread? If we need to core in both hard and soft wood, which of the two would be preferable?
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Be careful about using McDonald's or other plastic straws. They are fine for collection, but not for long-term storage (unless you are storing in the freezer). Plastic doesn't "breathe", so the cores can get moldy. I actually buy paper straws because I can have the cores dry inside the straw. I also find them easier to splice together than plastic for those really long cores. There used to be only a couple sources for paper straws, but more online stores are carrying them now. Like H. Poulos, make sure you buy the larger diameter versions.
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I have questions concerning reparative action taken after having taken cores from trees, using things like increment borers.
Some advocate to plug the hole with a cylinder piece of wood that has been disinfected with fungicide, and then seal the hole with some kind of healant formula for trees.
Is this becoming common practice?
It seems there is no clear consensus as to whether taking these measures has a considerable impact on a trees health and survival?
Any viewpoints by dendrochronologists would be most welcome.
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I always like to think of it this way — branches break off trees all the time, animals dig holes into trees all the time, dendrochronologists take cores occasionally. All of these processes damage the tree, but you can bet that neither the windstorm nor the bird are likely to plug the hole they make. I leave the holes to heal naturally and sleep well at night knowing that 100 million years of evolution will take care of that hole (caveat: I mostly work with resinous gymnosperms).
These don't have to do with reparitive actions, but do find no increased mortality in sampled forests. I'm pretty sure these people left the holes open.
van Mantgem, P. J., and N. L. Stephenson. 2004. Does coring contribute to tree mortality? Canadian Journal of Forest Research 34:2394–2398.
and here....
Long-term effects of increment coring on Norway spruce mortality
Jan Wunder, Björn Reineking, Franz-Werner Hillgarter, Christof Bigler, and Harald Bugmann. Can. J. For. Res. 41: 2326–2336 (2011)