نتایج جستجو برای: agricultural total factorproductivity
تعداد نتایج: 890560 فیلتر نتایج به سال:
The agricultural expansion and intensification required to meet growing food and agri-based product demand present important challenges to future levels and management of biodiversity and ecosystem services. Influential actors such as corporations, governments, and multilateral organizations have made commitments to meeting future agricultural demand sustainably and preserving critical ecosyste...
Mires are among the ecosystems most affected by eutrophication caused excessive nitrogen (N) inputs via N deposition of ammonium (NH4+), nitrate (NO 3 – ), nitric acid (HNO dioxide 2 and ammonia (NH ). As NH emissions mostly generated agriculture, a particular conflict interest exists in areas where agricultural production systems located nearby sensitive ecosystems, as often is case Switzerlan...
Agriculture is an economic activity that manifests the complex relationship between natural and human resources. The growth of agriculture is prerequisite for overall development of Indian economy. It contributes significantly to the export earnings and affects the performance of other sectors of the economy through forward and backward linkages. The present paper analysis disparities in agricu...
Currently, there is an increased interest in the study of phosphorus (P) loss from soils aimed to understand and mitigate water eutrophication problems. The main objective of this study is to describe P losses in f ive irrigated agricultural watersheds considered as representative in terms of agricultural water management. Weekly water samples were collected during the 2007 hydrologic year (HY)...
This study quantifies the water footprint of consumption (WFcons) regarding agricultural products for three diets - the current diet (REF), a healthy diet (HEALTHY) and a vegetarian diet (VEG) - for the four EU zones WEST, NORTH, SOUTH and EAST. The WFcons related to the consumption of agricultural products (4265l per capita per day or lcd) accounts for 89% of the EU's total WFcons (4815lcd). T...
Tropical Africa is affected by intense land-use change, particularly forest conversion to agricultural land. In this study, the stream discharge of four small headwater catchments located within an area of 6 km in western Kenya was examined for 2 years (2007 and 2008). The four catchments cover a degradation gradient ranging from intact forest to agricultural land under maize cultivation for 5,...
In this paper, we present a method to estimatethe productivity development of the Czech agricultural sector. While traditional productivity measures are based on macroeconomic data, we use individual accounting data of firms and determine the productivity development using the Fisher total factor productivity index. The results suggest that the development of agricultural sector is not highly s...
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