Consequences of nitrate leaching following stem-only harvesting of Swedish forests are dependent on spatial scale.
Summary of "Consequences of nitrate leaching following stem-only harvesting of Swedish forests are dependent on spatial scale."
Short-term increases in soil solution nitrate (NO(3)(-)) concentration are often observed after forest harvest, even in N-limited systems. We model NO(3)(-) leaching below the rooting zone as a function of site productivity. Using national forest inventories and published estimates of N attenuation in rivers and the riparian zone, we estimate effects of stem-only harvesting on NO(3)(-) leaching to groundwater, surface waters and the marine environment. Stem-only harvesting is a minor contributor to NO(3)(-) pollution of Swedish waters. Effects in surface waters are rapidly diluted downstream, but can be locally important for shallow well-waters as well as for the total amount of N reaching the sea. Harvesting adds approximately 8 Gg NO(3)-N to soil waters in Sweden, with local concentrations up to 7 mg NO(3)-N l(-1). Of that, ∼3.3 Gg reaches the marine environment. This is ∼3% of the overall Swedish N load to the Baltic.
Swedish University of Agricultural Sciences, Department of Environmental Assessment, SE 750 07 Uppsala, Sweden.
This article was published in the following journal.
Name: Environmental pollution (Barking, Essex : 1987)
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20864232
- DOI: http://dx.doi.org/10.1016/j.envpol.2010.08.016
Irrigated croplands can be a major source of nitrate-N (NO-N) in groundwater due to leaching. In California, where high NO-N levels have been found in some areas of the Central Valley aquifer, the con...
AbstractMore than 400 Swedish volunteers participated in medical units in the Finnish Winter War 1939-40. The Swedish sympathies for Finland were strong and the medical contribution was seen both as a...
The article present a review on own experimental and some published data which are related with the gold leaching. It is well-known that the most common and usual process of the leaching with cyanide ...
Various solutions are utilized widely for the isolation, harvesting, sorting, testing and transplantation of neural stem cells (NSCs), whereas the effects of harvesting media on the biological charact...
HIV-related stigma has negative consequences for infected people's lives and is a barrier to HIV prevention. Therefore valid and reliable instruments to measure stigma are needed to enable mapping of ...
An exploratory study investigating the direct application of potassium nitrate solutions of different concentrations in reducing dentine hypersensitivity.
Silver nitrate treatment of Bartholin's cyst or abscess will be compared to marsupialization treatment. It is expected that silver nitrate treatment is effective, simple, inexpensive and ...
Conventional open vein harvesting from the legs during coronary artery bypass surgery result in wound complications among 30% of the patients. Endoscopic harvesting decrease the complicati...
Eligible patients will have low- or intermediate-grade Non-Hodgkin's Lymphoma (NHL) that has progressed after standard chemotherapy. Patients will receive gallium nitrate 300 mg/m2/day by...
The ESOS (Endoscopic Saphenous harvesting with an Open CO2 System) trial is a prospective randomized trial for coronary artery bypass grafting (CABG) surgery to compare endoscopic open CO2...
Medical and Biotech [MESH] Definitions
Transplantation of stem cells collected from the peripheral blood. It is a less invasive alternative to direct marrow harvesting of hematopoietic stem cells. Enrichment of stem cells in peripheral blood can be achieved by inducing mobilization of stem cells from the BONE MARROW.
An NAD-dependent enzyme that catalyzes the oxidation of nitrite to nitrate. It is a FLAVOPROTEIN that contains IRON and MOLYBDENUM and is involved in the first step of nitrate assimilation in PLANTS; FUNGI; and BACTERIA. It was formerly classified as EC 184.108.40.206.
An iron-sulfur and MOLYBDENUM containing FLAVOPROTEIN that catalyzes the oxidation of nitrite to nitrate. This enzyme can use either NAD or NADP as cofactors. It is a key enzyme that is involved in the first step of nitrate assimilation in PLANTS; FUNGI; and BACTERIA. This enzyme was formerly classified as EC 220.127.116.11.
An enzyme that catalyzes the oxidation of nitrite to nitrate in the presence of NADP+. It is a FLAVOPROTEIN that contains IRON and MOLYBDENUM. This enzyme was formerly classified as EC 18.104.22.168 and should not be confused with the enzyme NITRATE REDUCTASE (NAD(P)H).
An enzyme that catalyzes the oxidation of nitrite to nitrate. It is a cytochrome protein that contains IRON and MOLYBDENUM.