Results 41 to 50 of about 165,975 (306)

Sustainability of industrial forest plantations and indigenous land rights in the Philippines : a thesis presented in partial fulfillment of the requirements for the degree of Master of Philosophy in Resource and Environmental Planning at Massey University [PDF]

open access: yes, 1999
In the Philippines, forest management two decades ago was mainly aimed at addressing the need for economic growth. There was low priority accorded to the long-term sustainability and inherent environmental functions of the country's forests as well as ...
Gonzales, Allan L
core  

The context of REDD+ in the Lao People's Democratic Republic: drivers, agents and institutions [PDF]

open access: yes, 2013
This report explores the drivers (both direct and indirect) of deforestation and forest degradation and discusses the political, economic and social opportunities and constraints that will influence the design and implementation of REDD+ in Laos.
Castella, Jean-Christophe   +6 more
core   +1 more source

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková   +4 more
wiley   +1 more source

Microbial Biomass and Enzyme Activity of Soil Under Clonal Rubber Tree Plantations

open access: yesFloresta e Ambiente, 2020
Our study aimed to evaluate the influence of rubber tree plantations (Clones IAN 873 and FX 3864) on microbial activity, total organic carbon (TOC), and soils chemical attributes, using as reference pasture and secondary forest, in Rio de Janeiro.
Anderson Ribeiro Diniz   +5 more
doaj   +1 more source

Understorey plant community and light availability in conifer plantations and natural hardwood forests in Taiwan [PDF]

open access: yes, 2015
Questions: What are the effects of replacing mixed species natural forests with Cryptomeria japonica plantations on understorey plant functional and species diversity?
Anderson M.C.   +25 more
core   +2 more sources

Charting the Path to Increased Oil Palm Output in Ghana Beyond Area Expansion: Technology or Managerial Capacity — Which Leads the Way?

open access: yesAgribusiness, EarlyView.
ABSTRACT This study sets out to investigate the prospects for raising oil palm output in sub‐Saharan Africa, particularly Ghana, without further expansion of cropland. Given global concerns about oil palm's role in deforestation and land use change, the focus is on enhancing productivity on existing farmlands.
Jacob Asravor   +3 more
wiley   +1 more source

Structure of bird communities in eucalyptus plantations: nestedness as a pattern of species distribution

open access: yesBrazilian Journal of Biology
Replacement of native habitats by tree plantations has increased dramatically in Brazil, resulting in loss of structural components for birds, such as appropriate substrates for foraging and nesting.
L. I. Jacoboski   +2 more
doaj   +1 more source

Large acquisition of rights on forest lands for tropical timber concessions and commercial wood plantations [PDF]

open access: yes, 2011
The recent attention given to the growing large-scale acquisition or leasing of public and private lands by commercial investors fails to pay attention to the extensive practice of and current trends in the leasing of industrial-scale forest concessions ...
Barney, Keith   +9 more
core  

Choice experiments on land managers' participation in environmental programs: A systematic review and meta‐analysis of estimate validity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Discrete choice experiments are increasingly being used to estimate land managers' willingness to accept participation in incentive‐based environmental programs. This is a specific application of discrete choice experiments: the estimation of willingness to accept for a private good (program participation) where respondents have to make trade ...
Anastasio J. Villanueva   +2 more
wiley   +1 more source

Invasive plant species in the forest parks of Yekaterinburg [PDF]

open access: yes, 2019
Invasive species-introduced species, spontaneously settled outside their natural range, and successfully adapted to the new growing conditions. The problem of invasive species penetration, both herbaceous and woody, has long been a concern of scientists,
Luganskaya, S. N.   +2 more
core  

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