Effect of Road Construction on Phytogeography of Herbaceous Flora in Areas Adjacent to Balakot-shogran Road, Mansehra District, N.W.F.P, Pakistan
نویسندگان
چکیده
منابع مشابه
Assessment of Effect of Road or Road Construction on Soil Physical and Chemical Properties in Northern Forests of Iran
Forests are an important economic source for human and have key role in nutrient cycle, hydrology and ecosystem performance, any interference in this vital ecosystem causes to damage to forests. Mechanical logging and road construction in forest areas have led to much soil compaction. Soil physical and chemical properties were studied in parts of road and non-road in the Darabkola forest of Ira...
متن کاملAssessment of Effect of Road or Road Construction on Soil Physical and Chemical Properties in Northern Forests of Iran
Forests are an important economic source for human and have key role in nutrient cycle, hydrology and ecosystem performance, any interference in this vital ecosystem causes to damage to forests. Mechanical logging and road construction in forest areas have led to much soil compaction. Soil physical and chemical properties were studied in parts of road and non-road in the Darabkola forest of Ira...
متن کاملeffect of forest road on herbaceous diversity and tree regeneration
road construction is one of the effective factors for ecological changes which affects diversity and species composition in forest roads edges. this research was performed in kheirud forest to evaluate herbaceous diversity and tree regeneration establishment in different distances from road edge. for this purpose, we sampled herbaceous and tree species regeneration in 0,5,10,25, 50 and 100 m di...
متن کاملthe washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests
در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است
15 صفحه اول(revitalizing silk road corridor in the region (north east of iran
introruction khawf in(iran)-herat and mazaresharif and shirkhan bandar in (afghanistan)-dushanbe in (tajikistan)_(kirgizstan)-kashghar in(china) project railway network is under construction that it is as a significant corridor for revitalizing silk road corridor in the region .at the present there are three different gauge in the region central asia with 1,520 mm gauge and turkey-islamic repu...
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ژورنال
عنوان ژورنال: Journal of Biological Sciences
سال: 2001
ISSN: 1727-3048
DOI: 10.3923/jbs.2001.232.234