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Forest Tenure Reform in China

External link - 1 hour 29 min ago
Resources magazine: To boost domestic forest production and correct rural?urban income disparity, China is putting forest management rights into the hands of its citizens.
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Researchers Map Seasonal Greening in U.S. Forests, Fields, and Urban Areas

Global Forest Information Service - 3 hours 23 min ago
Asheville, NC--Using the assessment tool ForWarn, U.S. Forest Service researchers can monitor the growth and development of vegetation that signals winter’s end and the awakening of a new growing season. Now these researchers have devised a way to more precisely characterize the beginning of seasonal greening, or "greenup," and compare its timing with that of the 14 previous years. Such information helps land managers anticipate and plan for the impacts of disturbances such as weather events and insect pests.

Three maps detailing greenup in forests and grasslands, agricultural lands, and urban areas are now available online via ForWarn, which delivers weekly Land Surface Phenology (LSP) maps of seasonal vegetation growth and development detected by satellites, as well as national maps showing vegetation disturbances.

"In contrast to field observations that track leaf emergence for particular species of trees or herbaceous plants, ForWarn’s LSP maps capture the response of the mixture of vegetation that can be seen from space," explains William Hargrove, research ecologist from the Forest Service’s Eastern Forest Environmental Threat Assessment Center.

The researchers used nationwide satellite imagery collected between 2000 and 2013 to quantify the seasonal progression from dormancy to peak greenness using a common scale from 0 to 100 percent. They picked the median date associated with 20 percent greenup at each location as a common reference point signaling a clear launch of the growing season. The maps’ median greenup dates are particularly useful for managers of mainly deciduous forests, grasslands, and crops.

"The start of the annual growing season is among the most important climate-sensitive measures that ForWarn can provide," says Eastern Threat Center research ecologist Steve Norman. "Just as gardeners look to climate data to determine the typical last frost date, the typical greenup dates provides a baseline for land managers to establish expectations for seasonal duration and productivity."

Managers who know more precisely when the growing season begins can better anticipate the risks and impacts of disturbances such as those from wind, hail, frost, and fire, and can more efficiently monitor for pests such as defoliating insects that become active when leaves appear.

     ForWarn maps shows the median greenup dates for natural vegetation, agricultural lands, and urban areas (Chicago, Ill. are shown) to help land managers anticipate and plan for the impacts of disturbances. The maps are available at: www.forwarn.forestthreats.org/highlights.

A team of university and federal partners developed ForWarn, which was among the top 25 tools selected for inclusion in the White House’s U.S. Climate Resilience Toolkit in 2014. ForWarn’s weekly map products compare current landscape phenology with that of previous years to reveal changes in growth and mortality, year-to-year climate variation, effects of disturbance, and recovery following disturbance. Users can see and share the maps via ForWarn’s recently upgraded Forest Change Assessment Viewer, which can also be viewed on smart phones and tablets.

Learn more about ForWarn: http://forwarn.forestthreats.org/


News Release Science Contact: William (Bill) Hargrove
News Release Science Contact:
News Release Science Contact: Zoë Hoyle
Categories: Forest

Researchers Map Seasonal Greening in U.S. Forests, Fields, and Urban Areas

Metla Finland - 3 hours 23 min ago
Asheville, NC--Using the assessment tool ForWarn, U.S. Forest Service researchers can monitor the growth and development of vegetation that signals winter’s end and the awakening of a new growing season. Now these researchers have devised a way to more precisely characterize the beginning of seasonal greening, or "greenup," and compare its timing with that of the 14 previous years. Such information helps land managers anticipate and plan for the impacts of disturbances such as weather events and insect pests.

Three maps detailing greenup in forests and grasslands, agricultural lands, and urban areas are now available online via ForWarn, which delivers weekly Land Surface Phenology (LSP) maps of seasonal vegetation growth and development detected by satellites, as well as national maps showing vegetation disturbances.

"In contrast to field observations that track leaf emergence for particular species of trees or herbaceous plants, ForWarn’s LSP maps capture the response of the mixture of vegetation that can be seen from space," explains William Hargrove, research ecologist from the Forest Service’s Eastern Forest Environmental Threat Assessment Center.

The researchers used nationwide satellite imagery collected between 2000 and 2013 to quantify the seasonal progression from dormancy to peak greenness using a common scale from 0 to 100 percent. They picked the median date associated with 20 percent greenup at each location as a common reference point signaling a clear launch of the growing season. The maps’ median greenup dates are particularly useful for managers of mainly deciduous forests, grasslands, and crops.

"The start of the annual growing season is among the most important climate-sensitive measures that ForWarn can provide," says Eastern Threat Center research ecologist Steve Norman. "Just as gardeners look to climate data to determine the typical last frost date, the typical greenup dates provides a baseline for land managers to establish expectations for seasonal duration and productivity."

Managers who know more precisely when the growing season begins can better anticipate the risks and impacts of disturbances such as those from wind, hail, frost, and fire, and can more efficiently monitor for pests such as defoliating insects that become active when leaves appear.

     ForWarn maps shows the median greenup dates for natural vegetation, agricultural lands, and urban areas (Chicago, Ill. are shown) to help land managers anticipate and plan for the impacts of disturbances. The maps are available at: www.forwarn.forestthreats.org/highlights.

A team of university and federal partners developed ForWarn, which was among the top 25 tools selected for inclusion in the White House’s U.S. Climate Resilience Toolkit in 2014. ForWarn’s weekly map products compare current landscape phenology with that of previous years to reveal changes in growth and mortality, year-to-year climate variation, effects of disturbance, and recovery following disturbance. Users can see and share the maps via ForWarn’s recently upgraded Forest Change Assessment Viewer, which can also be viewed on smart phones and tablets.

Learn more about ForWarn: http://forwarn.forestthreats.org/


News Release Science Contact: William (Bill) Hargrove
News Release Science Contact:
News Release Science Contact: Zoë Hoyle
Categories: Europe

On ‘landscape approach,’ scientists search for meaning

Global Forest Information Service - 4 hours 11 min ago

  BOGOR, Indonesia—It’s an increasingly prominent way of thinking about land use that has yet, somewhat usefully, defied easy definition. Now, it’s beginning to come into sharper focus, as scientists are beginning to lift the veil on the “landscape approach” to land management. This phrase has a wide variety of definitions, but can be broadly... Read more

Categories: Forest

On ‘landscape approach,’ scientists search for meaning

Metla Finland - 4 hours 11 min ago

  BOGOR, Indonesia—It’s an increasingly prominent way of thinking about land use that has yet, somewhat usefully, defied easy definition. Now, it’s beginning to come into sharper focus, as scientists are beginning to lift the veil on the “landscape approach” to land management. This phrase has a wide variety of definitions, but can be broadly... Read more

Categories: Europe

Climate Change Threatens to Kill Off More Aspen Forests by 2050s, Scientists Say

Global Forest Information Service - 4 hours 23 min ago
Scientists warned that the aspen forests could be doomed if emissions of greenhouse gases continue at a high level, adding to other studies that suggest the global effect of climate change.
Categories: Forest

A Wing That Can Recover From Midair Collisions

Global Forest Information Service - 4 hours 23 min ago
A new robotic wing recovers from midair collisions with a simple mechanism: a pin joint that allows it to bend.
Categories: Forest

Climate Change Threatens to Kill Off More Aspen Forests by 2050s, Scientists Say

Metla Finland - 4 hours 23 min ago
Scientists warned that the aspen forests could be doomed if emissions of greenhouse gases continue at a high level, adding to other studies that suggest the global effect of climate change.
Categories: Europe

A Wing That Can Recover From Midair Collisions

Metla Finland - 4 hours 23 min ago
A new robotic wing recovers from midair collisions with a simple mechanism: a pin joint that allows it to bend.
Categories: Europe

After fire, Fairlee sawmill’s future uncertain

Global Forest Information Service - 5 hours 1 min ago

In the aftermath of a four-alarm fire that destroyed the Britton Lumber Company sawmill on Saturday night, the fate of 20 workers’ employment is uncertain, and damages could be in the millions, according to its owner.
Categories: Forest

After fire, Fairlee sawmill’s future uncertain

Metla Finland - 5 hours 1 min ago

In the aftermath of a four-alarm fire that destroyed the Britton Lumber Company sawmill on Saturday night, the fate of 20 workers’ employment is uncertain, and damages could be in the millions, according to its owner.
Categories: Europe

Aylesford Newsprint: The real story behind the paper mill’s closure

Global Forest Information Service - 5 hours 8 min ago

With his 17-year career in manufacturing paper at an end, ex-Aylesford Newsprint worker Kevin Fosberry has been booking himself on courses at the Jobcentre.
Categories: Forest

Aylesford Newsprint: The real story behind the paper mill’s closure

Metla Finland - 5 hours 8 min ago

With his 17-year career in manufacturing paper at an end, ex-Aylesford Newsprint worker Kevin Fosberry has been booking himself on courses at the Jobcentre.
Categories: Europe