نتایج جستجو برای: land conservation

تعداد نتایج: 212216  

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2017
Anne Sofie Elberg Nielsen Niels Strange Hans Henrik Bruun Jette Bredahl Jacobsen

The participation of private landowners in conservation is crucial to efficient biodiversity conservation. This is especially the case in settings where the share of private ownership is large and the economic costs associated with land acquisition are high. We used probit regression analysis and historical participation data to examine the likelihood of participation of Danish forest owners in...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2007
Adena R Rissman Lynn Lozier Tosha Comendant Peter Kareiva Joseph M Kiesecker M Rebecca Shaw Adina M Merenlender

Conservation easements are one of the primary tools for conserving biodiversity on private land. Despite their increasing use, little quantitative data are available on what species and habitats conservation easements aim to protect, how much structural development they allow, or what types of land use they commonly permit. To address these knowledge gaps, we surveyed staff responsible for 119 ...

Journal: :desert 2012
h.r. motaghian j. mohammadi

in a semiarid region of central iran, effects of parent materials, physiography and landscape position, land use, andmanagement practices on association of organic carbon with secondary (aggregates) particles and aggregate stability canhave important consequences in terms of carbon sequestration and budgeting, deciding on the proper land use strategy andsuitable soil conservation practices. it ...

Journal: :desert 0
h.r. motaghian phd. student, college of agriculture, shahrekord university, shahrekord, iran j. mohammadi assoc. prof., college of agriculture, shahrekord university, shahrekord, iran

in a semiarid region of central iran, effects of parent materials, physiography and landscape position, land use, andmanagement practices on association of organic carbon with secondary (aggregates) particles and aggregate stability canhave important consequences in terms of carbon sequestration and budgeting, deciding on the proper land use strategy andsuitable soil conservation practices. it ...

2012
Brian M. Brost Paul Beier

Least-cost modeling for focal species is the most widely used method for designing conservation corridors and linkages. However, these designs depend on today's land covers, which will be altered by climate change. We recently proposed an alternative approach based on land facets (recurring landscape units of relatively uniform topography and soils). The rationale is that corridors with high co...

1999
Claire A. Montgomery Robert A. Pollak Kathryn Freemark Denis White Paul Ringold Stevan Arnold Stephen Polasky Joan Baker Jack Ward Thomas

In this paper, we propose a management price framework to inform decision making directed at the land-management unit level when biodiversity is one of several land-management objectives. The management prices synthesize information about the production relationships that link the public goods aspects of biodiversity to land-management activities. High management prices indicate high marginal r...

Farida Abubakari Fariya Abubakari Victor Owusu

Soil erosion is one of the most important forms of land degradation that threatens continued and sustained agricultural production in Ghana. The most severely affected areas are the three northern regions especially Upper East Region, where large tracts of land have been destroyed by water erosion leading to soil depth reduction and decline in soil fertility. This study was carried out in Talen...

Journal: :Science 2005
Gerardo Ceballos Paul R Ehrlich Jorge Soberón Irma Salazar John P Fay

We present a global conservation analysis for an entire "flagship" taxon, land mammals. A combination of rarity, anthropogenic impacts, and political endemism has put about a quarter of terrestrial mammal species, and a larger fraction of their populations, at risk of extinction. A new global database and complementarity analysis for selecting priority areas for conservation shows that approxim...

Journal: :Environmental management 2016
Sarah Varble Silvia Secchi Caroline Gottschalk Druschke

Tenants and part-owners are farming an increasing number of acres in the United States, while full-owners are farming fewer acres. This shift in ownership is a potential cause for concern because some previous research indicated that tenant and part-owner farmers were less likely to adopt conservation practices than farmers who owned the land they farmed. If that trend persists, ownership chang...

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