منابع مشابه
An Ecological Approach to Production Agriculture
Row-crop agriculture is one of the most extensive and closely coupled natural– human systems and has extraordinary implications for human welfare and environmental well-being. The continued intensification of row-crop agriculture provides food for billions and, for at least the past 50 years, has slowed (but not stopped) the expansion of cropping onto lands valued for conservation and other env...
متن کاملFarming for Ecosystem Services: An Ecological Approach to Production Agriculture.
A balanced assessment of ecosystem services provided by agriculture requires a systems-level socioecological understanding of related management practices at local to landscape scales. The results from 25 years of observation and experimentation at the Kellogg Biological Station long-term ecological research site reveal services that could be provided by intensive row-crop ecosystems. In additi...
متن کاملnon-corrective approach to pronunciation
the aim of this study has been to find answers for the following questions: 1. what is the effect of immediate correction on students pronunciation errors? 2. what would be the effect of teaching the more rgular patterns of english pronunciation? 3. is there any significant difference between the two methods of dealing with pronuciation errore, i. e., correction and the teaching of the regular ...
15 صفحه اولAn Ecological Approach to Cognitive Science{1}
[1] Cognitive science is ready for a major reconceptualization.(1) This is not at all because efforts by its practitioners have failed, but rather because so much progress has been made. The need for reconceptualization arises from the fact that this progress has come at greater cost than necessary, largely because of more or less philosophical (at least metatheoretical) straightjackets still w...
متن کاملAn Ecological Approach to Agent Population Management
The problem of maintaining a desired number of mobile agents on a network is not trivial, especially if what is required is a completely decentralized solution. Decentralized control makes a system more robust and less susceptible to partial failures. The problem of agent population management is exacerbated on wireless ad hoc networks where host mobility can result in significant changes in th...
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ژورنال
عنوان ژورنال: Conservation Biology
سال: 1993
ISSN: 0888-8892,1523-1739
DOI: 10.1046/j.1523-1739.1993.07030734-5.x