Showing 651 - 660 of 723
[paper in French] Territorialized agri-environmental measures (MAEt) were introduced in France for the 2007-2013 Common Agricultural Policy program, in order to improve the cost-effectiveness of agri-environmental policies. This paper assesses qualitatively the innovations of MAEt with special...
Persistent link: https://www.econbiz.de/10011098766
This paper applies a policy analysis approach to the question of how to effectively regulate micropollution in a sustainable manner. Micropollution is a complex policy problem characterized by a huge number and diversity of chemical substances, as well as various entry paths into the aquatic...
Persistent link: https://www.econbiz.de/10011029868
The trajectory of aquaculture growth in sub-Saharan Africa has necessitated closer attention to the use of environmental best management practices (BMPs). Two BMPs in particular, water reuse and floating feeds, are being promoted for adoption by pond fish farmers in sub-Saharan Africa. In this...
Persistent link: https://www.econbiz.de/10011029937
The paper presents both the structure and application of a Decision Support System (DSS) for an important river in Brazil—along with the sustainable management of its watershed. This DSS assesses both surface-water quality and riverine microhabitats in terms of future scenarios, taking into...
Persistent link: https://www.econbiz.de/10011030074
[paper in French]The CAP reform is an opportunity to improve the design of existing agri-environmental schemes. Understanding the design attributes affecting farmers’ choices when they adopt an agri-environmental contract can help to identify ways of increasing their participation. The aim of...
Persistent link: https://www.econbiz.de/10011115531
This paper uses avertive expenditures to estimate the demand for qualitative aspects of tap water supply. We focus on two characteristics that are of importance for water consumers: water hardness and aesthetic quality in terms of taste, smell and appearance. To elicit expenditures on substitute...
Persistent link: https://www.econbiz.de/10011115694
Models like SWAP, HYDRUS and SALTMED compute crop water uptake under osmotic stress with a dimensionless piecewise linear or S-shaped reduction function. Parameters for these functions, to reduce water uptake, corresponds normally to the Maas and Hoffman salinity threshold and slope values....
Persistent link: https://www.econbiz.de/10011116753
The primary aim of this study was to produce maps of various types of risk arising from the use of surface and ground water for irrigation (viz., soil degradation, plant nutritional disorders, clogging of irrigation systems and reservoir problems). The maps were obtained as the additive result...
Persistent link: https://www.econbiz.de/10011116769
A comparative study was carried out to evaluate the effects of two water irrigation sources on the quality and microbiological safety of tomato plants and fruit, and on the microbiological soil properties: irrigation with groundwater (GW) and with treated agro-industrial wastewater (TW). In a...
Persistent link: https://www.econbiz.de/10011116778
Agri-environmental schemes (AES) are a central component of the environmental policy of the European Union. Despite widespread interest and investment in AESs, few of these pro-grams have been carefully evaluated and doubts are often expressed about the effectiveness of voluntary programs. The...
Persistent link: https://www.econbiz.de/10011165828