Перейти к основному содержанию

page search

Displaying 7945 - 7956 of 13047

Assessing Administrative Laws for Forestry Prescribed Burning in the Southern United States: A Management-Based Regulation Approach

LandLibrary Resource
Journal Articles & Books
декабря, 2012
Australia
United States of America
Northern America

SUMMARYPrescribed burning in forestry is a valuable land management tool that has been extensively used in Australia, Eurasia, and North America. Nevertheless, fire is inherently dangerous and may impose risk upon humans, properties, and other natural resources.

Two decades of destruction in Southeast Asia's peat swamp forests

LandLibrary Resource
Journal Articles & Books
декабря, 2012

We used land‐cover maps and active fire detection based on satellite imagery to evaluate the rates and spatial distribution of peatland deforestation in Southeast Asia from 1990 to 2010. Over this time period, the proportion of forest cover in the peatlands of Peninsular Malaysia, Sumatra, and Borneo fell from 77% to 36%.

Effects of Land Cover Disturbance on Stream Invertebrate Diversity and Metal Concentrations in a Small Urban Industrial Watershed

LandLibrary Resource
Journal Articles & Books
декабря, 2012

The landscape surrounding Sudbury, Ontario, has been severely affected by 100 years of mining and forestry and a recent, large-scale ecological risk assessment found that terrestrial plant communities continue to be impaired by remnant metals and poor soil conditions.

Mapping land-use and land-cover change along Bolivia's Corredor Bioceánico with CBERS and the Landsat series: 1975–2008

LandLibrary Resource
Journal Articles & Books
декабря, 2012
Bolivia
Central America
South America

This study uses a combination of Landsat series data (Multispectral Scanner or MSS, Thematic Mapper or TM and Enhanced Thematic Mapper or ETM+) to map land-use and land-cover change (LULCC) from 1975 to 2001. It extends the land change record to 2008 using Chinese–Brazil Earth Resources Satellite (CBERS)-2 and CBERS-2B data on a multi-scene level.

Accounting for space and time in soil carbon dynamics in timbered rangelands

LandLibrary Resource
Journal Articles & Books
декабря, 2012

Employing rangelands for climate change mitigation is hindered by conflicting reports on the direction and magnitude of change in soil organic carbon (ΔSOC) following changes in woody cover. Publications on woody thickening and deforestation, which had led to uncertainty in ΔSOC, were re-evaluated, and the dimensional-dependence of their data was determined.

Degradation of soils as a result of long-term human-induced transformation of the environment in Iran: an overview

LandLibrary Resource
Journal Articles & Books
декабря, 2012
Iran

Human-induced soil degradation is a serious and complex environmental challenge in Iran. For a long time, human activities, namely the overuse of land, have been influencing the natural processes on and in soils; therefore, various types of soil degradation can be observed in many parts of the country.

Can active restoration of tropical rainforest rescue biodiversity? A case with bird community indicators

LandLibrary Resource
Journal Articles & Books
декабря, 2012

There is vigorous debate about the potential for reforestation to offset losses in biodiversity associated with tropical deforestation, but a scarcity of good data. We quantified developmental trajectories following active restoration (replanting) of deforested pasture land to tropical Australian rainforest, using 20 different bird community indicators within chronosequences of multiple sites.

Ecosystem functional changes associated with land clearing in NW Argentina

LandLibrary Resource
Journal Articles & Books
декабря, 2012
Argentina

We assessed the extension of natural habitat conversion into croplands and grazing lands in subtropical NW Argentina and its impact on two key ecosystem functional attributes. We quantified changes in remotely sensed surrogates of aboveground net primary production (ANPP) and seasonality of carbon gains.

Global forecasts of urban expansion to 2030 and direct impacts on biodiversity and carbon pools

LandLibrary Resource
Journal Articles & Books
декабря, 2012
Sri Lanka
Western Africa
Global

Urban land-cover change threatens biodiversity and affects ecosystem productivity through loss of habitat, biomass, and carbon storage. However, despite projections that world urban populations will increase to nearly 5 billion by 2030, little is known about future locations, magnitudes, and rates of urban expansion.

Committed carbon emissions, deforestation, and community land conversion from oil palm plantation expansion in West Kalimantan, Indonesia

LandLibrary Resource
Journal Articles & Books
декабря, 2012
Indonesia

Industrial agricultural plantations are a rapidly increasing yet largely unmeasured source of tropical land cover change. Here, we evaluate impacts of oil palm plantation development on land cover, carbon flux, and agrarian community lands in West Kalimantan, Indonesian Borneo.