期刊名称：Journal of Integrative Environmental Sciences
印刷版ISSN：1943-815X
电子版ISSN：1943-8168
出版年度：2010
卷号：7
页码：269-277
DOI：10.1080/19438151003621383
语种：English
出版社：Taylor & Francis
摘要：Agriculture is an important source of greenhouse gases, including methane (CH4) and nitrous oxide (N2O). In addition, it is a source of compounds contributing to other environmental problems such as acidification, terrestrial and aquatic eutrophication, tropospheric ozone formation, and human health problems. These compounds include, for instance, ammonia (NH3), nitrogen oxides (NOx), and particulate matter (PM) volatile organic compounds or nitrate (). In this article, we address the question how we can reduce the overall environmental impact (OEI) of agriculture at least costs, and what the role of non-CO2 greenhouse gases in these optimal solutions is. We present results of the DAIRY model, an optimization model for the Czech dairy production sector. The model distinguishes between nine study regions defined according environmental and agriculture characteristics and calculates emissions, their potential impact and OEI at regional and national level. We show that in cost-effective scenarios the model tends to select measures to reduce emissions contributing to climate change and aquatic eutrophication first. This is in contrast with current policies in the Czech Republic, which is aiming at reduction of emissions causing acidification and eutrophication. We also show that reducing greenhouse gas emissions plays a modest role in optimal strategies to reduce the OEI of dairy production.
关键词：dairy cattle; Czech Republic; emission reduction; optimization model
