▶ Addresses a wide range of timely environment, economic and energy topics ▶ A forum to review, analyze and stimulate the development, testing and implementation of mitigation and adaptation strategies at regional, national and global scales ▶ Contributes to real-time policy analysis and development as national and international policies and agreements are discussed and promulgated ▶ 94% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again

Mitigation and Adaptation Strategies for Global Change

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Remote sensing of the environment

Remote sensing for agricultural applications: A meta-review

The results of the Forest Resources Assessment 2000 carried out by FAO are synthetically presented and discussed. The world forest coverage is estimated equal to 38.6 million km 2 . The comparison of the estimates from the period 1990-2000 with those from the period 1980-1990 points out a certain general deceleration of the rate of net deforestation, that currently involves around 9 million hectares every year. However, the annua1 loss of tropical forests is still very large, while temperate and borea1 forests are in expansion. Overall, FRA2000 produced a relevant effort to compensate the existing technical, institutional and financial constraints and shortcomings for monitoring the world forest resources. The need to increase the quality and the frequency of forest surveys, both at national and international levels, s t a stands as a major issue to cope with.

http://ojs.aisf.it/index.php/ifm/article/download/774/738

Valutazione delle risorse forestali a livello globale

We reviewed the literature on leadership in linked social-ecological systems and combined it with the literature on institutional entrepreneurship in complex adaptive systems to develop a new theory of transformative agency in linked social- ecological systems. Although there is evidence of the importance of strategic agency in introducing innovation and transforming approaches to management and governance of such systems, there is no coherent theory to explain the wide diversity of strategies identified. Using Holling's adaptive cycle as a model of phases present in innovation and transformation of resilient social- ecological systems, overlaid by Dorado's model of opportunity context (opaque, hazy, transparent) in complex adaptive systems, we propose a more coherent theory of strategic agency, which links particular strategies, on the part of transformative agents, to phases of system change.

/pdf/a-theory-of-transformative-agency-in-linked-social-136jl6wy98.pdf

A Theory of Transformative Agency in Linked Social-Ecological Systems

Intensification of agriculture in modern farming systems can enhance economic returns at the cost of environment. An integrated dynamic based model is developed to evaluate the effects of alternative agricultural best management practices (BMPs) on overall sustainability of integrated farming systems. The study is conducted at a farm scale in Hampshire county of Massachusetts state, USA. Sustainability index in the model is constructed to evaluate the economic and environmental outcomes and to test different scenarios for determining the changes in sustainability outcomes. Simulations are performed to examine the effect of alternative crop support practices on sediment delivery. Marginal efficiency analysis reveals that strip cropping is the economically efficient crop support practice with substantially high sediment delivery reduction for a marginal expense of monetary profit. In stochastic modelling, two alternative scenarios are evaluated based on a ‘with and without’ approach and ‘with BMPs’ performed better. Mean sustainability index is comparatively larger with less variability in balanced scenario, which implies that balanced farming with equal importance to economic and environmental outcomes would be sustainable in long run. For the adoption of the efficient crop support practice, a conservation incentive package could be extended and the package could be encapsulated into other farm/watershed development programs.

Dynamic simulation modelling to evaluate best management practices in integrated farming systems

The changes in energy balance resulting from land-use change may significantly affect the amount and timing of water loss to the atmosphere as evapotranspiration (ET). Also, these will impact water fluxes in the watershed system, influencing runoff rate, flow volume, intensity, and frequency of floods. During the past century, land-use change in the SuAsCo (Sudbury-Assabet and Concord) watershed has altered basin hydrology, sediment, and nutrient load that is detrimental to water resources in SuAsCo. This study uses an integrated physically-based model Hydrological Simulation Program-FORTRAN (HSPF), along with Land Transformation Model (LTM), to assess predicted temporal and spatial changes in water, nutrient, and sediment yields for future land-use scenarios of 2035, 2065, and 2100. Results showed that a 75% increase in effective impervious area and a 50% decrease in forest area in 2100 (from 2005 baseline levels) are projected to cause a 3% increase in annual streamflow and a 69% increase in total yearly mean surface runoff. The average annual total suspended solid (TSS) yield at the watershed outlet is estimated to increase by 54% in 2100. An increase of 12% and 13% concentrations of average annual total phosphorus (TP) and total nitrogen (TN) are predicted by 2100 due to urban expansion and increased runoff volume. This integrated modeling approach will inform watershed managers and landowners about critical areas of the SuAsCo watershed to apply best management practices (BMPs) to mitigate the effects of land-use land cover (LULC) change.

/pdf/long-term-effects-of-land-use-change-on-water-resources-in-w2n7sc3a.pdf

Long-term effects of land-use change on water resources in urbanizing watersheds

A Multi-Indicator, Non-Cooperative Game Model to Resolve Conflicts for Aquifer Restoration

Environmental performance evaluation is an essential part of environmental management—however, current methods of environmental performance overlook efficiencies in individual operational processes...

Environmental performance evaluation of enterprises using internal resource loss and external environmental damage costs

Fennel fruits (Foeniculum vulgare Mill.) represent one of the plant-based natural spices. This study aims to improve the fruit yield and essential oil (EO) quality by reducing the undesirable component, estragole, under different fertilizer treatments. The fertilizers included chemical nitrogen, phosphorus, and potassium (NPK), and also the organic additive, rabbit manure (RM). For bio-fertilization, plants were inoculated with a mixture of N-fixing bacteria, and P- and K-solubilizing bacteria with/without vesicular-arbuscular mycorrhizal fungi. The results showed that fruit and EO yield parameters, total phenolic content (TPC), total flavonoid content (TFC), and DPPH scavenging activity of fruit extracts were enhanced by fertilizer treatments in both growing seasons. NPK at 150% of the recommended dose (NPK150) and RM at 60 m3/fed (RM60) recorded the highest values of plant height, umbel number/plant, 100-fruit weight, fruit yield, chlorophyll, carbohydrates, N and P content, EO content, and yield. TPC and TFC were enhanced by using biological fertilizers. DPPH scavenging activity was higher in organically and biologically fertilized fennel. The GC-MS analyses of EO revealed higher contents of the desirable trans-anethole in the organically and chemically fertilized fennel. However, the highest proportion of estragole, the undesirable compound, was recorded for NPK150 and unfertilized plants. On the contrary, increases in the EO content and yield of fennel fruits were achieved by RM along with a reduction in estragole, enhancement in trans-anethole, and increments in other favorable compounds such as fenchone and limonene. In addition, the inhibition of estragole formation was recorded with bio-fertilizers, which also increased the trans-anethole content. Furthermore, the trans-anethole/estragole ratio was significantly higher with the application of organic and bio-fertilization. Hence, organic and bio-fertilizer resources can produce high-quality fennel fruit and EO. The reduction in the use of chemical fertilizers can help to reduce environmental pollution.

/pdf/effect-of-organic-and-bio-fertilization-on-fruit-yield-2b2ol7jk.pdf

Timothy O. Randhir

Papers

Dynamic simulation modelling to evaluate best management practices in integrated farming systems

Long-term effects of land-use change on water resources in urbanizing watersheds

A Multi-Indicator, Non-Cooperative Game Model to Resolve Conflicts for Aquifer Restoration

Environmental performance evaluation of enterprises using internal resource loss and external environmental damage costs

Effect of Organic and Bio-Fertilization on Fruit Yield, Bioactive Constituents, and Estragole Content in Fennel Fruits