FOREST MANAGEMENT PLANNING ON PRIVATE LANDS: A CASE STUDY OF THE SPATIAL ANALYSIS PROJECT IN THE NORTH CENTRAL UNITED STATES

2013 ◽  
Vol 15 (01) ◽  
pp. 1350004
Author(s):  
ERIC J. HOLZMUELLER ◽  
JOHN W. GRONINGER ◽  
MICHAEL A. MARTINEK
Keyword(s):  
Spatial Analysis ◽  
Private Lands ◽  
Forest Management Planning ◽  
The North ◽  
Stewardship Program ◽  
Ranking Criteria ◽  
Central United States ◽  
Forested Areas ◽  
Forest Stewardship ◽  
The Impact

In 2004, the US Forest Service launched the Spatial Analysis Project (SAP) to determine whether lands enrolled in the Forest Stewardship Program meet state stewardship objectives. Within each state, SAP used an aggregate analysis to categorise all land available for the FSP as — low, medium, or high stewardship potential. We characterized differences in land classified by the SAP in the study area, and determined if states have been effectively enrolling lands in the high category. Results indicate that while states are enrolling high stewardship potential lands (p < 0.0001), prioritising among forest lands is difficult because nearly all of it is classified as high or medium stewardship potential. We suggest prioritising forested areas using ranking criteria that are more closely associated with state forestry priorities, a strategy that could be adapted to increase the impact of limited public forest stewardship resources outside of the region as well.

Meta-Analytic and Economic Approaches for Evaluation of Pesticide Impact on Sclerotinia Stem Rot Control and Soybean Yield in the North Central United States

2019 ◽  
Vol 109 (7) ◽  
pp. 1157-1170 ◽  
Author(s):  
Jaime F. Willbur ◽  
Paul D. Mitchell ◽  
Mamadou L. Fall ◽  
Adam M. Byrne ◽  
Scott A. Chapman ◽  
...  
Keyword(s):  
Disease Severity ◽  
Yield Loss ◽  
Severity Index ◽  
Stem Rot ◽  
Sclerotinia Stem Rot ◽  
Soybean Yield ◽  
The North ◽  
Central United States ◽  
Meta Analyses ◽  
The Impact

As complete host resistance in soybean has not been achieved, Sclerotinia stem rot (SSR) caused by Sclerotinia sclerotiorum continues to be of major economic concern for farmers. Thus, chemical control remains a prevalent disease management strategy. Pesticide evaluations were conducted in Illinois, Iowa, Michigan, Minnesota, New Jersey, and Wisconsin from 2009 to 2016, for a total of 25 site-years (n = 2,057 plot-level data points). These studies were used in network meta-analyses to evaluate the impact of 10 popular pesticide active ingredients, and seven common application timings on SSR control and yield benefit, compared with not treating with a pesticide. Boscalid and picoxystrobin frequently offered the best reductions in disease severity and best yield benefit (P < 0.0001). Pesticide applications (one- or two-spray programs) made during the bloom period provided significant reductions in disease severity index (DIX) (P < 0.0001) and led to significant yield benefits (P = 0.0009). Data from these studies were also used in nonlinear regression analyses to determine the effect of DIX on soybean yield. A three-parameter logistic model was found to best describe soybean yield loss (pseudo-R2 = 0.309). In modern soybean cultivars, yield loss due to SSR does not occur until 20 to 25% DIX, and considerable yield loss (−697 kg ha−1 or −10 bu acre−1) is observed at 68% DIX. Further analyses identified several pesticides and programs that resulted in greater than 60% probability for return on investment under high disease levels.

scholarly journals Spatial Analysis of Curb-Park Violations and Their Relationship with Points of Interest: A Case Study of Tehran, Iran

2019 ◽  
Author(s):  
Javad Koohpayma ◽  
Amir Tahooni ◽  
Mohammad reza Jelokhni ◽  
Jamal Jokar Arsanjani
Keyword(s):  
Spatial Distribution ◽  
Spatial Analysis ◽  
Direct Relationship ◽  
Heavy Traffic ◽  
Traffic Load ◽  
Law Enforcement Agencies ◽  
Urban Planner ◽  
The North ◽  
Car Park ◽  
The Impact

Car parking is a challenging part of urban transportation and the traffic violations around it cause many problems for citizens. In recent years, due to the fast growth and development of urbanization, temporary and unauthorized stopping of cars along the streets, especially in large cities, has led to an increased traffic, urban disorders, dangers for citizens, and violation of rules. Studies have shown that there is a direct relationship between vehicle parking violations and urban places. GIScience capabilities and tools play an important role in analysing the spatial distribution of these violations. In this study, we investigated the spatial distribution of vehicle violations in a region of Tehran, Iran that is suffering from a heavy traffic load and heavily polluted air. Although two dissimilar urban segregations exist in the north and south of the study area, our analysis indicates a similar pattern of car parking violations. In both of the areas, about 70% of all curb parks are legal, while the remaining are illegal. Also, spatial analysis reveals a direct relationship between some POIs and the occurrence of car park violations so that the density of legal curb parks is high near some POIs, and less near some others and vice versa. For example, the number of vehicle park violation around the hospitals is more than the average of the study area. However, the number of park violations around the universities is less than the average. Our findings reveal that co-location of certain POIs, for instance a hotel and a supermarket will lead to an increase in the number of park violations. In other words, there is a strong correlation between the type of POIs and curb-parks violations. Our results also show that POIs have an impact radius that leads to violations occurring in that area. For example, the area of the impact of a hospital on the creation of car park violations was estimated at 125 meters. Our presented approach along with the discussed findings along with conclusions can be useful to a large range of stakeholders including urban planner, traffic police departments, local municipalities, law enforcement agencies, and environmentalists to have a better perspective of infrastructure planning.

scholarly journals Analyses of Yield and Economic Response from Foliar Fungicide and Insecticide Applications to Soybean in the North Central United States

2016 ◽  
Vol 17 (4) ◽  
pp. 232-238 ◽  
Author(s):  
Yuba R. Kandel ◽  
Daren S. Mueller ◽  
Chad E. Hart ◽  
Nathan R. C. Bestor ◽  
Carl A. Bradley ◽  
...  
Keyword(s):  
United States ◽  
Field Experiments ◽  
Foliar Application ◽  
The United States ◽  
Insect Management ◽  
North Central ◽  
The North ◽  
Central United States ◽  
Foliar Fungicide ◽  
The Impact

Foliar disease and insect management on soybean (Glycine max L. Merrill) in the North Central region of the United States has been increasingly accomplished through foliar fungicide and insecticide application. Data from research trials conducted in Illinois, Indiana, Iowa, and Nebraska were compiled from 2008 to 2014 to determine the impact of fungicide, insecticide, and fungicide + insecticide applications on soybean yield and profitability. In each state, field experiments occurred each year in two to seven locations. All treatments were applied at the R3 growth stage. Disease and insect pressure were very low in all states and years. A foliar application of fungicide, insecticide, or the combination, increased yield in seven out of 14 total site-years (P < 0.10). Economic analysis using an average soybean price of $0.42 per kilogram and average application cost of $62 per hectare indicated that fungicide applications were only profitable in 14% of the trial site-years. Insecticide alone and fungicide + insecticide was profitable in 39% and 45% of site-years, respectively. Effect of fungicide class on yield was inconsistent. Our results indicate that although yield increases can occur with foliar fungicide and/or insecticide treatments, current market prices and application costs may limit profitability when disease and/or insect pressure is low. Accepted for publication 22 September 2016.

scholarly journals Timber Harvesting Characteristics on Forest Stewardship Properties and Non–Forest Stewardship Properties in Central West Virginia

2007 ◽  
Vol 24 (4) ◽  
pp. 265-270 ◽  
Author(s):  
Matthew A. Provencher ◽  
David W. McGill ◽  
Shawn T. Grushecky
Keyword(s):  
West Virginia ◽  
Best Management Practices ◽  
Management Practices ◽  
Timber Harvesting ◽  
Road Density ◽  
Stewardship Program ◽  
Dependent Variables ◽  
Road Systems ◽  
Forest Stewardship ◽  
The Impact

Abstract A study was conducted in the Elk River watershed in central West Virginia to evaluate the impact of the US Forest Stewardship Program (FSP) on the physical attributes of primary road systems used in timber harvesting operations. On seven properties enrolled in the FSP and on eight non-FSP properties, road systems used for logging within a 5-year period before this study were mapped and measured. Twenty dependent variables relating to residual vegetation, forest road characteristics, erosion, and certain best management practices (BMP) were used to characterize timber harvesting operations that had been conducted on these properties. With the exception of road density and waterbar implementation, analysis of these dependent variables failed to detect any statistical differences among property types. BMPs observed in this study included waterbars, broad-based dips, turnouts, culverts, and inside ditches. Results suggest that landowner objectives may play a role in the use of alternatives to waterbars. Eighty-one percent of BMP practices other than waterbars were observed on stewardship properties. Higher road densities on non-FSP properties were likely caused by road patterns used on forest industry properties.

scholarly journals O monitoramento da Covid-19 através de Sistemas de Informação Geográfica: estratégias e desafios para a transparência de dados públicos no Rio Grande do Sul

2020 ◽  
Author(s):  
Ricardo Dagnino ◽  
Lucas Manassi Panitz ◽  
Eliseu José Weber ◽  
Marcos Wellausen Dias de Freitas ◽  
Guilherme Garcia de Oliveira ◽  
...  
Keyword(s):  
Spatial Analysis ◽  
Positive Impact ◽  
Rio Grande ◽  
Indigenous Populations ◽  
North Coast ◽  
Multidisciplinary Teams ◽  
Surveillance Systems ◽  
Rio Grande Do Sul ◽  
The North ◽  
The Impact

From the first cases of Covid-19 in Rio Grande do Sul, in March 2020, we started monitoring the pandemic using an online Geographic Information System (GIS). Within the SIG Litoral Project, from the Federal University of Rio Grande do Sul, we developed the platform as a strategy to provide society with spatial analysis and organized data on the disease, bringing together researchers, scholarship holders and volunteers. The portal, focused on health communication, allows the visualization of data on the global, national and regional scales, in addition to monitoring the indigenous populations of the Amazon and mapping the solidarity networks in the North Coast of Rio Grande do Sul. In the article in question, we mainly focus on monitoring Covid-19 in Rio Grande do Sul, addressing the tools used, the challenges to obtaining data and some spatial analysis performed. We show divergences between data sources, indicating the problem of underreporting and the different methodologies employed by health surveillance systems. Finally, we address the impact of the monitoring of Covid-19, having a positive impact on society by providing transparency to official data, contributing to the plurality of the debate, the interaction of multidisciplinary teams and the academic training of students.

scholarly journals Substitution Value of Cup Plant (Silphium perfoliatum L.) Silage in Dairy Cow Diet

2021 ◽  
Vol 13 (11) ◽  
pp. 1
Author(s):  
Kun-Jun Han ◽  
Kenneth A. Albrecht
Keyword(s):  
Milk Production ◽  
Bos Taurus ◽  
Milk Composition ◽  
Corn Silage ◽  
Feeding Trial ◽  
The North ◽  
Lactation Stage ◽  
Central United States ◽  
Feeding Trials ◽  
The Impact

Cup plant (Silphium perfoliatum L.) may serve as an alternative perennial forage crop in lowlands of the north central United States. Three feeding trials were conducted with Holstein cows (Bos taurus) at the early, mid, and late lactation stages to evaluate the impact of different cup plant silage substitution levels for alfalfa (Medicago sativa L.)-corn (Zea mays L.) silage mixture on milking cow performance. The concentrations of lignin and CP (crude protein) in the first cut and regrowth cup plant silage were lower than alfalfa silage. Substituting one-half of the silage reduced voluntary dry matter (DM) intake of early lactation stage cows by 11%. Although milk composition was not changed by the substitution, the 4% FCM (fat corrected milk) production was reduced by 7.5%. Another feeding trial tested substitution of one-third and two-thirds of the silage for mid-lactation cows. Increasing cup plant silage up to two-thirds of the forage portion in the diet reduced DM intakes and 4% FCM production by 21.8 and 8.7%, respectively. Milk composition did not change. Cow bodyweight was reduced as the substitution rate increased. Finally, a feeding trial with late-lactation cows indicated substitution of one-fourth of the silage performed equivalent in DM intake, milk composition, and milk production to those of cows fed a low forage diet (50% alfalfa-corn silage in diet), or a high forage diet (66% alfalfa-corn silage in diet). Based on the results of the three feeding trials, it is concluded that cup plant silage can substitute mixture of alfalfa-corn silage at up to 30% of the forage portion in diets without substantial negative impacts on the performance of dairy cows, especially during late lactation.

An improved Victorian erosivity map

Soil Research ◽  
2003 ◽  
Vol 41 (1) ◽  
pp. 141 ◽  
Author(s):  
G. J. Sheridan ◽  
C. J. Rosewell
Keyword(s):  
Rainfall Intensity ◽  
Soil Surface ◽  
Water Runoff ◽  
Contour Map ◽  
North West ◽  
Erosion Processes ◽  
The North ◽  
Forested Areas ◽  
The Individual ◽  
The Impact

The impact of raindrops on the soil surface and surface water runoff are two of the agents of soil detachment and sediment transport. The magnitude of these erosion processes is a function of the erosive potential, or erosivity of a rainstorm. The erosivity of rainfall is commonly quantified using the R factor developed for the universal soil loss equation. R is the average of the annual sum of the individual storm erosivity values and can be estimated from published relationships between the storm energy and the rainfall intensity. Currently the most likely source of R-values in Victoria is a hand-drawn contour map produced more than 20 years ago by an expert panel and published in an out-of-print handbook. A new R-value contour map for Victoria is presented, developed from current empirical relationships between rainfall intensity–frequency–duration and R. The R contours vary in value across the state by about a factor of 4, from <800 MJ.mm/ha.h.year in the north-west, to >2700 MJ.mm/ha.h.year in the eastern ranges. The new map improves the resolution and accuracy of erosivity values for Victoria, especially in steeper, forested areas, and will assist in the prediction and modelling of erosion and water quality.

Sign in / Sign up

Export Citation Format

Share Document