scholarly journals Hydrologic Impacts of Logging an Appalachian Watershed Using West Virginia's Best Management Practices

1997 ◽  
Vol 14 (4) ◽  
pp. 207-218 ◽  
Author(s):  
James N. Kochenderfer ◽  
Pamela J. Edwards ◽  
Frederica Wood
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Basal Area ◽  
Growing Season ◽  
First Year ◽  
Best Management ◽  
Hydrologic Impacts ◽  
Dormant Season ◽  
Understory Shrubs

Abstract A 39 ha gauged watershed located in north-central West Virginia near Parsons was cut to a 35.5 cm stump diameter and logged using wheeled skidders to evaluate the effectiveness of West Virginia's Best Management Practices (BMPs). Roads initially occupied 10.6% of the watershed, but this percentage is decreasing as much of the original road prism reverts to forest. Reducing basal area by 44% in stems 2.54 cm dbh and larger had a negligible effect on maximum growing season stream temperatures, apparently because the stream remained shaded by residual trees and understory shrubs growing along it. Both growing season peakflows and total stormflow had small but significant increases due to treatment. Dormant season stormflows did not increase significantly. Although mean monthly exports of suspended sediment doubled the first year when the area was being logged, they remained within the range reported for carefully managed areas in the East. Sediment exports returned to pretreatment levels by the third posttreatment year. Long-term projections of current exports rates indicate that sediment exports from harvesting operations (3 entries) during a 100 yr rotation will account for less than 5% of the total sediment exported from the study watershed. Nitrate exports increased significantly during most of the monitored posttreatment years, but fertilizer applied to the roads during grass seeding is believed to have contributed to these increases. Actual concentration values remained low, with maximum concentrations well below standards for potable water. Calcium concentrations also increased during most years, but road liming during seeding probably was responsible for most of this increase. The BMPs used in this study were effective in minimizing adverse impacts to soil and water resources. North. J. Appl. For. 14(4):207-218.

Long-term Water Quality Trends after Implementing Best Management Practices in South Florida

2009 ◽  
Vol 38 (4) ◽  
pp. 1683-1693 ◽  
Author(s):  
Samira H. Daroub ◽  
Timothy A. Lang ◽  
Orlando A. Diaz ◽  
Sabine Grunwald
Keyword(s):  
Water Quality ◽  
Best Management Practices ◽  
Management Practices ◽  
South Florida ◽  
Best Management ◽  
Water Quality Trends

scholarly journals Nitrogen Fertigation of Young Navel Oranges: Growth, N Status, and Uptake of Fertilizer N

HortScience ◽  
2002 ◽  
Vol 37 (2) ◽  
pp. 334-337 ◽  
Author(s):  
Tom L. Weinert ◽  
Thomas L. Thompson ◽  
Scott A. White ◽  
Michael A. Maurer
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Growing Season ◽  
Fertilizer N ◽  
Trunk Diameter ◽  
Best Management ◽  
Central Arizona ◽  
N Status ◽  
Critical N Concentration ◽  
Leaf N

Microsprinkler irrigation may result in increased efficiency of N and water application to citrus. However, best management practices (BMPs) have not yet been developed for microsprinkler use, particularly on newly established citrus. Experiments were conducted during 1997-98 in central Arizona to evaluate the effects of N rate and fertigation frequency on `Newhall' navel oranges (Citrus sinensis) planted in Mar. 1997. Two experiments were conducted, each with factorial combinations of N rate (0 to 204 g/tree/year) and fertigation frequency (weekly to three times per year). In one experiment, nonlabeled N fertilizer was used, and in the other 15N-labeled fertilizer was used. Trunk diameter, leaf N, and 15N partitioning in the trees were monitored. During 1997, neither trunk diameter nor leaf N were affected by N rate or fertigation frequency. No more than 6% of N applied was found in the trees. During 1998, leaf N in fertilized plots was significantly higher than in nonfertilized plots, but leaf N in all trees remained above the critical N concentration of 25 mg·g-1. During 1998, no more than 25% of the fertilizer N applied was taken up by the trees. Results suggest that N applications are not needed during the first growing season after planting for microsprinkler-irrigated citrus in Arizona. Only low rates of N (≤68 g/tree/yr) may be needed during the second growing season to maintain adequate tree N reserves.

Logging in New England Need Not Cause Sedimentation of Streams

1994 ◽  
Vol 11 (1) ◽  
pp. 17-23 ◽  
Author(s):  
C. Wayne Martin ◽  
James W. Hornbeck
Keyword(s):  
New England ◽  
New Hampshire ◽  
Best Management Practices ◽  
Management Practices ◽  
First Year ◽  
Hubbard Brook Experimental Forest ◽  
Hubbard Brook ◽  
Sediment Yields ◽  
Best Management ◽  
Whole Tree

Abstract Erosion, sedimentation, and turbidity can be controlled during and after logging in New England forests by conscientiously following regulations and guidelines known as Best Management Practices (BMPs). This is demonstrated by comparing sediment yields and stream turbidities from cut and uncut watersheds at the Hubbard Brook Experimental Forest in central New Hampshire. Sediment yields from uncut forests average about 40 kg/ha/yr, but are highly variable from year to year and from watershed to watershed. Disturbances due to cutting and logging can increase sediment yields. For example, in the first year after a whole-tree clearcut at Hubbard Brook, sediment yields increased 10- to 30-fold over uncut watersheds. However, total yields after cutting and skidding were still small and did not greatly affect stream turbidity. North. J. Appl. For. 11(1): 17-23.

scholarly journals Land Application of Biosolids in the USA: A Review

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Qin Lu ◽  
Zhenli L. He ◽  
Peter J. Stoffella
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Cost Effective ◽  
Land Application ◽  
Potential Threat ◽  
Best Management ◽  
Cost Effective Method ◽  
The Usa ◽  
Potential Risks

Land application of biosolids has proven a cost-effective method of waste disposal by beneficially recycling organic matter and nutrients and improving soil quality; however, it may also pose potential threat to the environment and human health. The purpose of this paper is to provide information on recent research progresses and regulation efforts regarding land application of biosolids, including forms and types and nutrient values of biosolids, environmental and health concerns, and related best management practices (BMPs) of biosolids application, with emphasis on its land application in agriculture. More research and regulations are expected to minimize potential risks of biosolids land application, especially its long-term impacts.

Aquatic Stewardship Education in Theory and Practice

2007 ◽  
Keyword(s):  
Social Context ◽  
Best Practices ◽  
Needs Assessment ◽  
Best Management Practices ◽  
Management Practices ◽  
Theory And Practice ◽  
Aquatic Resources ◽  
Best Management ◽  
Oriented Activity

<i>Abstract.</i>—Fishing is an exciting, popular, family-oriented activity that can be ideal as an introduction to and long-term platform for achieving aquatic resources stewardship. Many agencies and stakeholder organizations have developed fishing programs for this purpose, and each year, millions of people participate in these programs across the country. This paper will identify best management practices for assessing and evaluating fishing programs for effectiveness in achieving that goal. It will address program goals, objectives, logic models and needs assessment, developing environmental sensitivity, and social context and support. Findings are based on extensive work conducted by educators and aquatic resources practitioners as part of the Recreational Boating and Fishing Foundation’s Best Practices in Boating, Fishing, and Aquatic Resources Stewardship project.

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