Leaf area index is one of the most important parameters in ecological and environmental studies. This paper presents a method for single leaf area measurement based on the counting of the leaf pixels in digital leaf image. Initially, the target leaf is put on a piece of white paper on which four endpoints of an equal-length and orthogonal cross are printed. A background color threshold is then ...

with the publication of the brundtland report carried the sustainability discussion into governments and businesses worldwide, much effort has gone into clarifying the meaning of the sustainability concept. to make the concept measurable and applied city sustainable idea, some new method was needed. so the method named ecological footprint has been presented.the ecological footprint method that...

A major obstacle for promoting sustainable (e.g. ecological) consumer behaviors is people’s negative attitude towards these. We tested the potential of a persuasion technique for improving these attitudes. We propose that cueing ecological behaviors people usually engage in, increases the accessibility of previously performed ecological behavior in the memory. As several theories suggest attitu...

The existing index systems on sustainable evaluation are mostly based on a multi index comprehensive evaluation method. The main disadvantage of this approach is that the selection and assignment of evaluation indexes are greatly influenced by subjective factors, which can result in poor comparability of results. By contrast, the Footprint Family (including ecological footprint, carbon footprin...

Behavioral ecology and ecology have projects in common. Community ecology can provide behavioral ecology with the tools to ask realistic questions about the current action of natural selection. Evolutionary ecology has moved beyond asking ‘‘Why does trait x contribute to reproductive success?’’ and on to ‘‘What are the conditions under which trait x contributes to reproductive success?’’ We nee...

conclusions it can be concluded that residential-road land uses show the considerable pollution index and ecological risk. materials and methods soil samples were collected from a depth of 0-20 cm at 16 stations with different users. the samples were passed through a 2-mm sieve after air drying. to determine the concentration of heavy metals, the samples were extracted by acid chloride and nitr...