نتایج جستجو برای: plant cover

تعداد نتایج: 497813  

Snow cover area is one of the most important criteria to calculate snow melt runoff. This can have an effect on the biology of the plant and the environment of a region. Using the catchment basin physical characteristic to calculate snow cover area is a conventional method, though its accuracy is not good enough. Most of the useful methods in calculating snow cover area are based on satellite i...

2015
Silvia Del Vecchio Irene Prisco Alicia T. R. Acosta Angela Stanisci

Coastal sandy ecosystems are increasingly being threatened by human pressure, causing loss of biodiversity, habitat degradation and landscape modifications. However, there are still very few detailed studies focussing on compositional changes in coastal dune plant communities over time. In this work, we investigated how coastal dune European Union (EU) habitats (from pioneer annual beach commun...

2014
Desirée Rivera Violeta Mejías Berta M. Jáuregui Marga Costa-Tenorio Ana Isabel López-Archilla Begoña Peco

The construction of linear transport infrastructure has severe effects on ecosystem functions and properties, and the restoration of the associated roadslopes contributes to reduce its impact. This restoration is usually approached from the perspective of plant cover regeneration, ignoring plant-soil interactions and the consequences for plant growth. The addition of a 30 cm layer of topsoil is...

In order to investigate the effect of different levels of water stress on Satureja hortensis, a completely randomized design (CRD) with four replications was carried out in the greenhouse of Yazd University in 2014. The water stress treatments including 100, 75, 50 and 25 Percent of field capacity (FC) were applied. The results showed that water deficit stress significantly (p<0.01) decreased p...

2015
Maike F. Holthuijzen Kari E. Veblen Cristina Armas

As environmental stress increases positive (facilitative) plant interactions often predominate. Plant-plant associations (or lack thereof) can indicate whether certain plant species favor particular types of microsites (e.g., shrub canopies or plant-free interspaces) and can provide valuable insights into whether "nurse plants" will contribute to seeding or planting success during ecological re...

Journal: :محیط شناسی 0
دکترمحمد جعفری مهندس سید ابوالفضل نصراللهی دکتر فریدون سرمدیان دکتر حسین آذرنیوند

relationship between plant and sial has special importance, because it is judged about one by considering the another one. soil-plant relationship is used for range trend, range emdttton, range suitability in range species. this research, includes: the analysis of plant different types and dominant species in each type with soil factors such as percentage of lime clay depth, stone and gravel (s...

Journal: :journal of agricultural science and technology 0
l. majchrzak department of agronomy, poznan university of life sciences dojazd 11, 60-632 poznan, poland z. sawinska department of agronomy, poznan university of life sciences dojazd 11, 60-632 poznan, poland m. natywa department of general and environmental microbiology, poznan university of life sciences, szydłowska 50, 60-656 poznań, [email protected] g. skrzypczak department of agronomy, poznan university of life sciences, dojazd 11, 60-632 poznan, poland r. głowicka-wołoszyn 3department of finance and accounting, poznan university of life sciences, wojska polskiego 28, 60-637 poznań, poland

field trials were conducted at the experimental station (brody) belonging to poznan university of life sciences (ne poland). the purpose was to evaluate the impact of different tillage systems and white mustard cover crop on soil enzymatic activity and severity of plant infection by pathogenic fungi in spring wheat. a randomized complete block design was set up with four replicates per treatmen...

2017
Florence Tardy Gaëlle Damour Marc Dorel Delphine Moreau

Cover plants can be introduced in cropping systems to provide agroecosystem services, including weed control via competition for resources. There is currently no consensus on how to identify the best cover plant species, while trait-based approaches are promising for screening plant species due to their agroecosystem service provision potential. This study was carried out to characterize soil e...

ژورنال: آبخیزداری ایران 2020

Surface gravel cover is an important factor for contoroling of soil erosion in dry area specially in area that plant can not grow because of excessive dryness and salinity. The objective of this study was investigation effect of different surface gravel cover on runoff and sediment yeild. For this porpose, 36 field plots with 20 meter length and 0.5 meter width at 3 percent slope were construct...

The study of plant under environmental conditions leads to an appreciation of their physical and chemical requirements for growth and reproduction. It contributes to increase the knowledge of where the plants grow. This study was conducted to determine the main autecological characteristics of Salvia hydrangea L. which is an endemic plant distributed in Mazanadarn province, Iran. The habitats o...

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