Nutrient budgets - a key indicator of soil sustainability

NutrieNt Budgets for PeNNsylvaNia CroPlaNd

Quantifying Uncertainty in Forest Nutrient Budgets

Nutrient budgets for forested ecosystems have rarely included error analysis, in spite of the importance of uncertainty to interpretation and extrapolation of the results. Uncertainty derives from natural spatial and temporal variation and also from knowledge uncertainty in measurement and models. For example, when estimating forest biomass, researchers commonly report sampling uncertainty but ...

Indicator-based water sustainability assessment - a review.

In the past few decades, there have been extensive efforts on measuring sustainability. One example is the development of assessment tools based on sustainability indicators. Several individuals and organisations have suggested various indices for assessing sustainability. This paper focuses on the review of water sustainability assessment using the indicator-based approach. It discusses major ...

A Portfolio of Nutrients: Soil and Sustainability

The Key to Sustainability

SOFTWARE SYSTEMS are a major driver of social and economic activity. Software engineering (SE) tends to focus on the technical elements— artificial systems with clear boundaries and identifiable parts and connections, modules and dependencies. But software systems are embedded in other technical systems and in socioeconomic and natural systems. This embedding is obvious when the interaction is ...