Transport Research International Documentation (TRID) https://trid.trb.org/ en-us Copyright © 2024. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Transport Research International Documentation (TRID) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ The Effectiveness of Organic Matter Amendments in Promoting Hydric Soil Conditions and Overall Health of Mitigation Wetlands – Phase II https://trid.trb.org/View/1865411 Tue, 27 Jul 2021 16:00:13 GMT https://trid.trb.org/View/1865411 Inventory and Statistical Characterization of Inorganic Soil Constituents in Illinois: Appendices https://trid.trb.org/View/1856575 Wed, 30 Jun 2021 17:35:08 GMT https://trid.trb.org/View/1856575 Inventory and Statistical Characterization of Inorganic Soil Constituents in Illinois https://trid.trb.org/View/1856574 Wed, 30 Jun 2021 17:35:08 GMT https://trid.trb.org/View/1856574 The life span and influencing factors of metal mesh in artificial soil on railway rock-cut slopes in humid areas https://trid.trb.org/View/1594964 Wed, 01 May 2019 09:34:13 GMT https://trid.trb.org/View/1594964 Access roads impact enzyme activities in boreal forested peatlands https://trid.trb.org/View/1550504 20 m), and 3) distance from the road (lateral; 2, 6, and 20 m). Phenol oxidase and hydrolase (glucosidase, sulfatase, xylosidase, glucosaminidase, and phosphatase) enzyme activities were determined for each sample, in addition to water table depth, phenolic concentration, pH, and peat temperature. The average hydrolase activities in the fen were ~four times higher than in the bog. At the bog, the water table depth, phenolic concentration, pH and the activities of phenol oxidase, sulfatase, glucosidase, xylosidase and glucosaminidase were all significantly influenced by one or more road associated factors. The highest enzyme activities in the bog occurred on the downstream side of the road at plots located far from the culvert. In contrast, the flow of water in the fen was not perpendicular to the road. Consequently, no significant variations in water table depth, phenolic concentration, pH or enzyme activity were found with respect to road associated factors. Results indicate that road crossings in boreal peatlands can indirectly alter enzyme activities, likely as part of a causal chain following changes to hydrology and redox conditions. Two of six investigated enzymes had significantly higher activities in the road disturbed areas compared to undisturbed areas, suggesting ultimately that roads may enhance organic matter decomposition rates. However, adequate hydrologic connections through culverts and road construction parallel to the water flow can minimize the road-induced impacts.]]> Tue, 20 Nov 2018 10:24:05 GMT https://trid.trb.org/View/1550504 The impact of pollutants from a major northern highway on an adjacent hardwood forest https://trid.trb.org/View/1507775 15 kg N/ha/y and 100kg Na+/ha/y within 33 m of the highway, for example, there was no significant difference in soil chemistry amongst sites. Plant community composition at sites within 80 m of the highway differed from sites located further from the road, but it is unclear whether differences were due to highway emissions or were a result of natural forest edge effects.]]> Tue, 29 May 2018 16:03:47 GMT https://trid.trb.org/View/1507775 Evaluation of Concrete Grinding Residue (CGR) Slurry Application on Vegetation and Soil Responses Along Nebraska State Hwy 31 https://trid.trb.org/View/1372219 Mon, 26 Oct 2015 09:12:16 GMT https://trid.trb.org/View/1372219 Report of Committee on Soil Calcium Chloride Roads https://trid.trb.org/View/1278766 Fri, 06 Dec 2013 11:31:54 GMT https://trid.trb.org/View/1278766 Characterization of Coarse Backfill Materials for Prevention of Corrosion of MSE Metallic Wall Reinforcement https://trid.trb.org/View/1250184 = 3/8 in.) aggregates in the laboratory. Testing demonstrated that fines collected from the field were enriched in chemicals that when exposed to water decreased pH and resistivity and increased chloride or sulfate concentrations relative to the bulk rock. This phenomenon can bias traditional soil testing results and therefore the assessment of corrosion potential. In this report a more representative geochemical testing protocol is recommended. The rate of corrosion was primarily controlled by the chloride content developed from the geochemistry of the backfill and the rate was predicted from the measured conductivity, as well as a two-step corrosion model was determined for the MSE.]]> Tue, 14 May 2013 09:45:14 GMT https://trid.trb.org/View/1250184 Spatial Extent of the Impact of Transported Road Materials on the Ecological Function of Forested Landscapes https://trid.trb.org/View/1214563 Wed, 26 Sep 2012 08:57:35 GMT https://trid.trb.org/View/1214563 Statistical Analysis of the Soil Chemical Survey Data https://trid.trb.org/View/981981 Thu, 04 Nov 2010 16:01:42 GMT https://trid.trb.org/View/981981 Evaluating Environmental Consequences of Producing Herbaceous Crops for Bioenergy https://trid.trb.org/View/864201 Thu, 24 Jul 2008 13:34:49 GMT https://trid.trb.org/View/864201 Chemical characteristics of the surface soil, herbaceous cover and organic layer of a compacted skid road in a fir (Abies bornmulleriana Mattf.) forest https://trid.trb.org/View/839163 Thu, 15 Nov 2007 10:32:06 GMT https://trid.trb.org/View/839163 Development of Damage Model to Analyze Stabilized Soil Layers Subjected to Repetitive Aircraft Loadings https://trid.trb.org/View/801259 Mon, 12 Mar 2007 08:09:14 GMT https://trid.trb.org/View/801259 Development of a Sampler for Measurement of Gas Content in Soils https://trid.trb.org/View/796169 Tue, 30 Jan 2007 13:27:19 GMT https://trid.trb.org/View/796169