Vegetation management practices in plantation forests of Australia and New Zealand

1993 ◽  
Vol 23 (10) ◽  
pp. 1989-2005 ◽  
Author(s):  
Brian Richardson

Radiata pine (Pinusradiata D. Don) is the predominant species in plantation forests of Australia and New Zealand. Removal or suppression of noncrop vegetation is often carried out to enhance crop growth and survival by reducing competition for water, light, and nutrients. Other reasons for vegetation removal include microclimate modification, providing access into stands, and fire hazard reduction. Many studies have demonstrated large increases in crop growth from removing noncrop vegetation. Vegetation management can also mean introducing noncrop species to improve site quality, to suppress unwanted species, or to provide fodder for grazing. While herbicides are still the most widely used weed control tool, nonchemical methods are of increasing importance. The role of machinery is likely to increase in both countries as the use of fire for vegetation management and general site preparation declines. To calculate the long-term cost–benefit of vegetation management, a better understanding of the crop growth response to these treatments is essential. This requires experiments that focus on the role of both crop and noncrop species in hydrological and nutrient cycles. Personal computer based decision support systems are likely to play an increasing role as an aid to cost-effective vegetation management decision making.

2011 ◽  
Vol 41 (5) ◽  
pp. 986-993 ◽  
Author(s):  
Carol A. Rolando ◽  
Michael S. Watt ◽  
Jerzy A. Zabkiewicz

Plantation forests certified by the Forest Stewardship Council have restrictions on herbicide use. Since certified plantations are dependant on herbicides for cost-effective vegetation management, compliance requires a shift from current chemical practices. Using New Zealand plantation forests as a case study, discounted cash flow analyses were used to estimate the cost of certification-compliant vegetation control regimes compared with current non-compliant methods. We examined methods that (i) reduce the quantity of herbicides by using spot control and (ii) avoid the use of herbicides by using weed mats, manual, and mechanical control. Cost analyses were undertaken for low-, medium-, and high-productivity sites. The internal rate of return of the non-compliant regime was between 5% and 5.8% across the productivity range. Spot control was cheaper than current non-compliant practice. However, spot control is limited by site suitability and the availability of labour. Non-chemical control methods were expensive relative to other regimes. Reductions in the internal rate of return varied across low- and high-productivity sites between 0.8% and 0.5% for manual control, 1.3% and 0.8% for mechanical control, and 1.7% and 1.0% for weed mats. Meeting the goals of certification while retaining cost-effective vegetation control presents a challenge to the plantation forestry sector.


2005 ◽  
Vol 216 (1-3) ◽  
pp. 51-63 ◽  
Author(s):  
Michael S. Watt ◽  
Graham Coker ◽  
Peter W. Clinton ◽  
Murray R. Davis ◽  
Roger Parfitt ◽  
...  

1996 ◽  
Vol 18 (1) ◽  
pp. 23 ◽  
Author(s):  
OJH Bosch ◽  
WJ Allen ◽  
JM Williams ◽  
AH Ensor

This paper describes the development of a process to facilitate the identification and introduction of sustainable land management practices in the high country of New Zealand. The process was designed to gather and structure community knowledge (both local and scientific) into a single, accessible decision support system (DSS). The development and provision of appropriate, and user-friendly monitoring tools is supported. An outline is given of how this integrated system can be used to integrate monitoring with adaptive management. Special reference is made to how this process is used as a large-scale ecological 'experiment', to enhance continually the knowledge base available for land use decision-making in the South Island high country of New Zealand.


EDIS ◽  
2013 ◽  
Vol 2013 (11) ◽  
Author(s):  
George Hochmuth ◽  
Laurie Trenholm ◽  
Don Rainey ◽  
Esen Momol ◽  
Claire Lewis ◽  
...  

Proper irrigation management is critical to conserve and protect water resources and to properly manage nutrients in the home landscape. How lawns and landscapes are irrigated directly impacts the natural environment, so landscape maintenance professionals and homeowners must adopt environmentally-friendly approaches to irrigation management. After selecting the right plant for the right place, water is the next critical factor to establish and maintain a healthy lawn and landscape. Fertilization is another important component of lawn and landscape maintenance, and irrigation must be applied correctly, especially following fertilization, to minimize potential nutrient losses. This publication supplements other UF/IFAS Extension publications that also include information on the role of soil and the root zone in irrigation management. This publication is designed to help UF/IFAS Extension county agents prepare materials to directly address nutrient losses from lawns and landscapes caused by inadequate irrigation management practices. This 6-page fact sheet was written by George Hochmuth, Laurie Trenholm, Don Rainey, Esen Momol, Claire Lewis, and Brian Niemann, and published by the UF Department of Soil and Water Science, October 2013. http://edis.ifas.ufl.edu/ss586


2007 ◽  
pp. 70-84 ◽  
Author(s):  
E. Demidova

This article analyzes definitions and the role of hostile takeovers at the Russian and European markets for corporate control. It develops the methodology of assessing the efficiency of anti-takeover defenses adapted to the conditions of the Russian market. The paper uses the cost-benefit analysis, where the costs and benefits of the pre-bid and post-bid defenses are compared.


2013 ◽  
Vol 1 (1) ◽  
pp. 83
Author(s):  
Ozan Büyükyılmaz

The development and expansion of knowledge management as an important management philosophy has a significant impact on human resources management as well as on organization as a whole. In this context, knowledge management processes have been used as a strategic tool within human resources management.Therefore, functions of human resources management must adapt itself to this change. The purpose of this study is to determine the role of human resources management in the management of knowledge and to reveal the effects of knowledge management practices on the functions of human resources byexamining the relationship between human resources and knowledge management. In this context, a theoretical investigation was conducted. It has been determined that significant changes occurred on the functions of human resources management such as selection and recruitment, performance management, remuneration and reward, training and development within the framework of the knowledge management strategies.


2019 ◽  
Vol 118 (11) ◽  
pp. 255-268
Author(s):  
Amit Kumar

Modern politics, particularly prevalent in the Western Democracies, is replete with instances wherein communication has come to play a pivotal role in the formation or dislodging a government. This is not to say that in traditional political scenario, the role of communication was any lesser. Far from it, communication has always characterized the build-up of events in politics. However, the significance of the same has increased manifold thanks to the advent of social media and complex nature of modern politics as well as due to rise of such concepts as political branding which has gained traction in the wake of proliferation of technology. The same holds true in the Indian political scenario as well. The last few years have redefined the role of communication and its tools in Indian politics, especially during a mega-political event like election. The last two general elections were testimonies to the same. The might of social media has been realized by even its staunchest critics. Along with it, the popular concept of permanent campaign has also characterized the phenomenon of political communication. This paper goes on to explore the underlying concept of political communication and how the same has come to influence the turn of events as well as the final outcome of an election.


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