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Showing 1 to 10 of 10 for “"forest fertilization"”.
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Nutrient Movement in Streamside Management Zones and Piedmont Streams Following Forest Fertilization
… silvicultural activities. Previous studies in forested watersheds have shown slight post-harvest increases of several nutrients in streams. Also, in agricultural settings, increased nitrogen (N) and phosphorous (P) levels have been detected in streams. However, little is known about the …
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The effect of forest fertilization on the ectomycorrhizae of western hemlock (tsuga heterophylla)
… located in the Mount Seymour Demonstration Forest, North Vancouver, British Columbia. Changes in the abundance of 10mycorrhizal types (Cenococcum geophilum Fr., Lactarius scrobiculatus (Scop.) ex. Fr., Mycelium radicis atrovirens Melin, Thelephora terrestris Fr., 3 Russula morphotypes, 2 …
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Nutrient Retention and Cycling in Southeastern U.S. Loblolly Pine (Pinus taeda L.) and Sweetgum (Liquidambar styraciflua L.) Plantations
Forest plantations in the southeastern U.S. are fertilized to increase growth on infertile, sandy soils. Nitrogen (N) and phosphorus (P) are the most common growth limiting nutrients. A key question that arises following fertilization of these soils is whether the applied fertilizer benefits only …
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Use of Stable Isotopes to Trace the Fate of Applied Nitrogen in Forest Plantations to Evaluate Fertilizer Efficiency and Ecosystem Impacts
… to urea. Mean NH3 volatilization after spring fertilization ranged from 4% to 26% for EEFs versus 26% to 40% for urea, and 8% to 23% for EEFs versus 29% to 49% for urea in summer. Chapter 3 results showed an increase in timing and development of foliage in fertilized compared to unfertilized …
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Biogeochemical Modeling of the Response of Forest Watersheds in the Northeastern U.S. to Future Climate Change
… responses of future climate change conditions on forested watersheds in the northeastern U.S. using climate projections from several atmosphere ocean general circulation models (AOGCMs) under different carbon dioxide (CO2) emissions scenarios. The impacts of changing climate on terrestrial …
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Impacts of Fertilization on Soil Properties in Loblolly Pine Plantations in the Southeastern United States
… and group 3—CRIFF E, F (well-drained Ultisols). Fertilization rates were 135, 202, and 269 kg N ha-1 at 4 years application frequency. This resulted in a cumulative N application rate of 540, 808, and 1076 kg ha-1. P was added at 10% of the N rate. Fertilization increased the mass, N content, and …
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Changes in Soil Nitrogen Following Biosolids Application to Loblolly Pine (Pinus Taeda L.) Forest in the Virginia Piedmont
… a common silviculture practices on loblolly pine forest. However, little is known about how biosolids type, application rate, and timing affect forest floor and soil N availability in pine plantations. The objectives of this study were to determine the effect of different types, rates, and season …
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Streamside Management Zone effectiveness for protecting water quality following forestland application of biosolids
… sewage treatment, are surface applied to forest soils to increase nutrient availability. Retaining streamside management zones (SMZs) can limit nutrient pollution of streams. We delineated 15 m SMZs along three intermittent streams in an 18-year-old Pinus taeda L. plantation. We applied …
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Growth and nutrient relations in black cottonwood in South-Coastal British Columbia
… and Soowahlie trials, response was attributed to fertilization with K and P, as suggested from the foliar nutrient diagnosis of the fast-growing group. Given that relatively low dosages (ca. 100 kg/ha) of P were required to achieve a significant growth response, and acknowledging that, in many …