Pasar al contenido principal

page search

Displaying 745 - 756 of 6252

Funding Science that Links to Decisions: Case Studies Involving Coastal Land Use Planning Projects

Journal Articles & Books
Diciembre, 2015

Many reports have noted that a significant portion of coastal science that is funded to help society address resource management issues does not actually link to decisions. A few studies and reports have offered valuable but general advice on what the funders of this science can do to better link science with decisions; there are fewer still published empirical case studies assessing the impacts of innovative funder methods for getting more science used by intended audiences.

Assessment of geo-hazards in a rapidly changing landscape: the three Gorges Reservoir Region in China

Journal Articles & Books
Diciembre, 2015
China

Large dam projects attract worldwide scientific attention due to their environmental impacts and socioeconomic consequences. One prominent example is the Three Gorges Dam (TGD) at the Yangtze River in China. Due to considerable resettlements, large-scale expansion of infrastructure and shifts in land use and management, the TGD project has irreversible impacts on the Upper Yangtze River Basin and strongly challenges the environmental conditions of this fast-developing region. Soil erosion and landslides are major geo-hazards.

Effects of land use planning on aboveground vegetation biomass in China

Journal Articles & Books
Diciembre, 2015
China

Dramatic land use change is expected to take place in China in the coming decades, which will exert great impact on the vegetation biomass. The paper assesses how land use change will influence the size and spatial distribution of the vegetation biomass in China. A spatially explicit land use change model, Dyna-CLUE, is employed together with a biomass density approach to account for the effects of forest age on biomass change. Two scenarios have been developed.

Optimization of method to quantify soil organic matter dynamics and carbon sequestration potential in volcanic ash soils

Journal Articles & Books
Diciembre, 2015

Volcanic ash-derived soils are important globally for their C sequestration potential and because they are at risk of compaction and degradation due to land use change. Poorly or non-crystalline minerals impart enormous capacity for soils to store and stabilize C, but also unusual chemical and physical properties that make quantifying meaningful soil C pools challenging.

Multi-agent based modeling of spatiotemporal dynamical urban growth in developing countries: simulating future scenarios of Lianyungang city, China

Journal Articles & Books
Diciembre, 2015
China

Urbanization is the most typical form of land use/cover change, and exploration of the driving mechanism of urban growth and the prediction of its future changes are very important for achieving urban sustainable development. In view of the ability of a multi-agent system to simulate a complex spatial system and from the perspective of combining macroscopic and microscopic decision-making behaviors of agents, a spatiotemporal dynamical urban growth simulation model based on the multi-agent systems has been developed.

Nature as capital: Advancing and incorporating ecosystem services in United States federal policies and programs

Journal Articles & Books
Diciembre, 2015
Estados Unidos de América

The concept of nature as capital is gaining visibility in policies and practices in both the public and private sectors. This change is due to an improved ability to assess and value ecosystem services, as well as to a growing recognition of the potential of an ecosystem services approach to make tradeoffs in decision making more transparent, inform efficient use of resources, enhance resilience and sustainability, and avoid unintended negative consequences of policy actions.

Spatial Analysis of Soil Subsidence in Peat Meadow Areas in Friesland in Relation to Land and Water Management, Climate Change, and Adaptation

Journal Articles & Books
Diciembre, 2015

Dutch peatlands have been subsiding due to peat decomposition, shrinkage and compression, since their reclamation in the 11th century. Currently, subsidence amounts to 1–2 cm/year. Water management in these areas is complex and costly, greenhouse gases are being emitted, and surface water quality is relatively poor. Regional and local authorities and landowners responsible for peatland management have recognized these problems. In addition, the Netherlands Royal Meteorological Institute predicts higher temperatures and drier summers, which both are expected to enhance peat decomposition.

Temporal Oscillation and Losses of Three Carbon Forms in a Microcatchment of NW Spain

Journal Articles & Books
Diciembre, 2015

Long-term agricultural sustainability and water quality may be threatened by inadequate land management. Carbon (C) losses at the catchment scale largely depend on land use and management practices. In “Abelar” farm (A Coruña, NW Spain), swine slurry was directly discharged during a period of about 30 years onto agricultural maize fields and rangeland under cattle production. In 1998, the agricultural fields and rangeland were planted to stands of Eucalyptus globulus .

Driving forces of soil organic matter change in Jiangsu Province of China

Journal Articles & Books
Diciembre, 2015
China

Soil organic matter (SOM) is a key property determining soil functions and a major form of carbon stored in soil. Understanding the spatial and temporal variability of SOM and the driving forces responsible for spatial and temporal changes is important to assess regional soil quality and carbon sequestration potential and, particularly, to establish better practices for land use and management. We evaluated the spatio‐temporal change in SOM content from 1979–1982 to 2006 and its driving forces in Jiangsu Province, East China, using geostatistics.

How to integrate remotely sensed data and biodiversity for ecosystem assessments at landscape scale

Journal Articles & Books
Diciembre, 2015

CONTEXT: Biodiversity and ecosystem functioning underpins the delivery of all ecosystem services and should be accounted for in all decision-making related to the use of natural resources and areas. However, biodiversity and ecosystem services are often inadequately accounted for in land use management decisions. OBJECTIVE: We studied a boreal forest ecosystem by linking citizen-science bird data with detailed information on forest characteristics from airborne laser scanning (ALS).

Soil organic carbon, nitrogen, and phosphorus distribution in stable aggregates of an Ultisol under contrasting land use and management history

Journal Articles & Books
Diciembre, 2015

Different land‐use affects the organization of mineral soil particles and soil organic components into aggregates and the consequent arrangement of the aggregates will influence essential ecosystem functions. We investigated a continuous rubber plantation (forested), land fallowed for 10 y (fallow), 10‐y continuous arable cropping land and cropped land with top soil removed (TSR) for concentrations of C, N, and P in bulk soil and dry aggregates.