Evaluating differences in forest fragmentation and restoration between western natural forests and southeastern plantation forests in the United States

2017 ◽  
Vol 188 ◽  
pp. 268-277 ◽  
Author(s):  
Xinyu Ren ◽  
Yingying Lv ◽  
Mingshi Li
Keyword(s):  
United States ◽  
Forest Fragmentation ◽  
The United States ◽  
Natural Forests ◽  
Plantation Forests

Differences in fragmentation processes between western natural forests and southeastern forest plantations in the United States: a case study comparing the states Washington and Mississippi State

2017 ◽  
Vol 37 (2) ◽  
Author(s):  
任芯雨 REN Xinyu ◽  
吕莹莹 LÜ Yingying ◽  
巫颖伟 WU Yingwei ◽  
李明诗 LI Mingshi ◽  
李卫正 LI Weizheng
Keyword(s):  
United States ◽  
The United States ◽  
Forest Plantations ◽  
Natural Forests ◽  
Fragmentation Processes

scholarly journals Use of Road Maps in National Assessments of Forest Fragmentation in the United States

2004 ◽  
Vol 9 (2) ◽  
Author(s):  
Kurt Riitters ◽  
James Wickham ◽  
John Coulston
Keyword(s):  
United States ◽  
Forest Fragmentation ◽  
The United States ◽  
Road Maps

scholarly journals The United States’ Implementation of the Montréal Process Indicator of Forest Fragmentation

Forests ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 727
Author(s):  
Kurt Riitters ◽  
Guy Robertson
Keyword(s):  
United States ◽  
Forest Fragmentation ◽  
Forest Cover ◽  
The United States ◽  
Science And Policy ◽  
Process Indicator ◽  
Forest Sustainability ◽  
Rate Of Increase ◽  
Indicator Framework ◽  
Montreal Process

The United States’ implementation of the Montréal Process indicator of forest fragmentation presents a case study in the development and application of science within a criteria and indicator framework to evaluate forest sustainability. Here, we review the historical evolution and status of the indicator and summarize the latest empirical results. While forest cover fragmentation is increasing, the rate of increase has slowed since 2006. Most of the fragmentation in the western United States is associated with changes in semi-natural land cover (e.g., shrub and grass) while most of the eastern fragmentation is associated with changes in agriculture and developed (including roads) land covers. Research conducted pursuant to indicator implementation exemplifies the role of a criteria and indicator framework in identifying policy-relevant questions and then focusing research on those questions, and subsequent indicator reporting exemplifies the value of a common language and developed set of metrics to help bridge the gaps between science and policy at national and international scales.

Cytisus scoparius (scotch broom).

2021 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
United States ◽  
South Africa ◽  
Invasive Species ◽  
The United States ◽  
Natural Forests ◽  
Fire Hazards ◽  
Scotch Broom ◽  
Native Grasslands ◽  
The World ◽  
Perennial Shrub

Abstract C. scoparius is a perennial shrub that has been widely commercialized as an ornamental in temperate and subtropical regions of the world. It is a prolific seeder that escaped from cultivation and has become an invasive species and a serious weed in temperate areas of the United States, Canada, Hawaii, Chile and Argentina, the eastern halves of both islands of New Zealand, Australia (including Tasmania), India, Iran, Japan and South Africa (Holm et al., 1979; Parsons and Cuthbertson, 1992; Hosking et al., 1998; Peterson and Prasad, 1998; Isaacson, 2000). C. scoparius is an aggressive fast-growing invader with the capability to grow forming dense impenetrable monospecific stands that degrade native grasslands, forests, rangelands, and agricultural lands; prevent the regeneration of natural forests and prairies; and create fire hazards (Syrett et al., 1999; USDA-NRCS, 2016). Because of its association with nitrogen fixing bacteria, it is very competitive in areas with poor soils and can alter the nutrient cycling of invaded areas (Peterson and Prasad, 1998).

Party Strength in the United States: Some Corrections

1975 ◽  
Vol 37 (2) ◽  
pp. 641-642 ◽  
Author(s):  
Paul T. David
Keyword(s):  
United States ◽  
The United States ◽  
Party Strength

Correlative microscopy in distrubuted (client/server) computing environments: tools for catalyzing the rapid dissemination of information about the cell biology of the human prostate

1995 ◽  
Vol 53 ◽  
pp. 682-683
Author(s):  
A. Hakam ◽  
J.T. Gau ◽  
M.L. Grove ◽  
B.A. Evans ◽  
M. Shuman ◽  
...  
Keyword(s):  
United States ◽  
Cell Biology ◽  
Tissue Bank ◽  
The United States ◽  
Prostate Adenocarcinoma ◽  
Correlative Microscopy ◽  
Client Server ◽  
Critical Elements ◽  
Transplant Organ

Prostate adenocarcinoma is the most common malignant tumor of men in the United States and is the third leading cause of death in men. Despite attempts at early detection, there will be 244,000 new cases and 44,000 deaths from the disease in the United States in 1995. Therapeutic progress against this disease is hindered by an incomplete understanding of prostate epithelial cell biology, the availability of human tissues for in vitro experimentation, slow dissemination of information between prostate cancer research teams and the increasing pressure to “ stretch” research dollars at the same time staff reductions are occurring.To meet these challenges, we have used the correlative microscopy (CM) and client/server (C/S) computing to increase productivity while decreasing costs. Critical elements of our program are as follows:1) Establishing the Western Pennsylvania Genitourinary (GU) Tissue Bank which includes >100 prostates from patients with prostate adenocarcinoma as well as >20 normal prostates from transplant organ donors.

Digital image acquisition, processing, and analysis in a polymer microscopy laboratory

1994 ◽  
Vol 52 ◽  
pp. 454-455
Author(s):  
Vinod K. Berry ◽  
Xiao Zhang
Keyword(s):  
United States ◽  
Image Analysis ◽  
Digital Image ◽  
Image Acquisition ◽  
Image Transmission ◽  
The United States ◽  
Quantitative Image Analysis ◽  
Quantitative Image

In recent years it became apparent that we needed to improve productivity and efficiency in the Microscopy Laboratories in GE Plastics. It was realized that digital image acquisition, archiving, processing, analysis, and transmission over a network would be the best way to achieve this goal. Also, the capabilities of quantitative image analysis, image transmission etc. available with this approach would help us to increase our efficiency. Although the advantages of digital image acquisition, processing, archiving, etc. have been described and are being practiced in many SEM, laboratories, they have not been generally applied in microscopy laboratories (TEM, Optical, SEM and others) and impact on increased productivity has not been yet exploited as well.In order to attain our objective we have acquired a SEMICAPS imaging workstation for each of the GE Plastic sites in the United States. We have integrated the workstation with the microscopes and their peripherals as shown in Figure 1.

Silence of the Land: On the Historical Irrelevance of Territory to Congressional Districting and Political Representation in the United States

2001 ◽  
Vol 15 (01) ◽  
pp. 53-87 ◽  
Author(s):  
Andrew Rehfeld
Keyword(s):  
United States ◽  
House Of Representatives ◽  
Political Representation ◽  
The United States ◽  
Representative Government ◽  
Congressional District ◽  
Congressional Districts ◽  
Communities Of Interest

Every ten years, the United States “constructs” itself politically. On a decennial basis, U.S. Congressional districts are quite literally drawn, physically constructing political representation in the House of Representatives on the basis of where one lives. Why does the United States do it this way? What justifies domicile as the sole criteria of constituency construction? These are the questions raised in this article. Contrary to many contemporary understandings of representation at the founding, I argue that there were no principled reasons for using domicile as the method of organizing for political representation. Even in 1787, the Congressional district was expected to be far too large to map onto existing communities of interest. Instead, territory should be understood as forming a habit of mind for the founders, even while it was necessary to achieve other democratic aims of representative government.

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