pine forest Articles
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Organic acids and Aldehydes in throughfall and dew in a Japanese pine forest
We analyzed low molecular weight organic acids and aldehydes in throughfall under pine forest, and organic acids in dew on chemically inert surfaces and pine needle surfaces at urban- and mountain-facing sites of pine forest in western Japan. Low molecular weight organic acids and aldehydes accounted for less than 5% of the dissolved organic carbon in throughfall at both sites. Formaldehyde at ...
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Field trip road log: big pine/white-inyo mountains/bristlecone pine forest, deep springs valley to fish lake valley.
This field trip starts at Big Pine, California and takes you through spectacular geology, the oldest trees in the world and even a view of a glacier. As you go east you will leave Owens Valley and ascend into the White-Inyo Mountains, the first mountain range encountered in the Basin and Range Province in this part of California. You will have the opportunity to view the sequence of Cambrian and ...
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The impact of beetle-induced conifer death on stand-scale canopy snow interception
Bark beetles have killed more than 100,000 km2 of pine forest in western North America, causing trees to lose the majority of their canopy material and potentially leading to enhanced subcanopy snow accumulation. Over a 45-day period, we tested this hypothesis by measuring daily snow accumulation in three living and two dead lodgepole pine stands and in three adjacent clearings. The largest ...
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The fate of lead at abandoned and active shooting ranges in a boreal pine forest
Changes in leaching, availability, bioaccumulation, and vertical distribution of lead (Pb) in soil 20 years after the cessation of shooting activity were studied by comparing three pine forest sites in southern Finland: an active shooting range, an abandoned shooting range, and a noncontaminated control site. At both shooting ranges, shooting activity had lasted for 20 years, but it had taken ...
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Stocks, Chemistry, and Sensitivity to Climate Change of Dead Organic Matter Along the Canadian Boreal Forest
Abstract Improving our ability to predict the impact of climate change on the carbon (C) balance of boreal forests requires increased understanding of site-specific factors controlling detrital and soil C accumulation. Jack pine (Pinus banksiana) and black spruce (Picea mariana) stands along the Boreal Forest Transect Case Study (BFTCS) in northern Canada have similar C stocks in aboveground ...
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Detection of biotic responses to urbanization using fish assemblages from small streams of western Georgia, USA
We examined relationships between stream fish assemblages and land use alteration associated with urbanization in 15 lower Piedmont watersheds along an urbanization gradient north of Columbus, western Georgia. Based on land cover data from 2002 Landsat 7 TM imagery aerial photos, streams drained watersheds that were largely urban, developing (suburban), agricultural (pasture), managed pine ...
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Aspect and soil textural controls on snowmelt runoff on forested Boreal Plain hillslopes
Plot studies were conducted on a jack pine forest with sandy soil and aspen forests with sandy and loam soils to examine the controls of slope aspect, soil texture and fall soil moisture content on near-surface snowmelt runoff and infiltration. It was hypothesized that near-surface runoff would be greater from north-facing slopes on loam soils with increased fall soil moisture content. Fall soil ...
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Observations and snow model simulations of winter energy balance terms within and between different coniferous forests in southern boreal Finland
Variation of canopy properties between different forest types is seldom taken into account in hydrological and climate models, and consideration of variation inside a forest is normally omitted. In this work, three data sets on near surface energy balance terms (incoming shortwave and longwave radiation; air and snow–soil interface temperatures) were collected in the southern boreal ...
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The newest strategy for saving bees is really, really old
With pollinators in decline around the world, conservationists turn to traditional farmers for answers. In northwestern India, the Himalaya Mountains rise sharply out of pine and cedar forests. The foothills of the Kullu Valley are blanketed with apple trees beginning to bloom. It’s a cool spring morning, and Lihat Ram, a farmer in Nashala village, shows me a small opening in a log hive ...
By Ensia
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Time for Trees to Pack Their Trunks?
As climate changes, forest ecosystems will need to shift to more suitable sites. Should humans lend a helping hand? During the last two springs, contract planters for The Nature Conservancy have spread out through the pine, spruce and aspen forest of northeastern Minnesota. Wielding steel hoedads, they have planted almost 110,000 tree seedlings on public land. What’s noteworthy about ...
By Ensia
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