نتایج جستجو برای: soil zonation

تعداد نتایج: 182369  

Journal: :Estuaries and Coasts 2021

Coastal marshes are important blue carbon reservoirs, but it is unclear how vegetation shifts associated with tidal restoration and sea level rise alter soil microbial respiration rates bacterial community composition. Within 20 Connecticut salt (10 without restrictions, 10 tidally restored), we sampled three zones dominated by Spartina alterniflora (short-form, < 30 cm tall), S. patens, Phragm...

2016
Rajal Debnath Archana Yadav Vijai K. Gupta Bhim P. Singh Pratap J. Handique Ratul Saikia

Information on rhizosphere microbiome of endemic plants from high mountain ecosystems against those of cultivated plantations is inadequate. Comparative bacterial profiles of endemic medicinal plant Rhododendron arboreum Sm. subsp. delavayi rhizosphere pertaining to four altitudinal zonation Pankang Thang (PTSO), Nagula, Y-junction and Bum La (Indo-China border; in triplicates each) along cold ...

Journal: :پژوهش های جغرافیای طبیعی 0
ابراهیم مقیمی دانشیار دانشکده جغرافیا، دانشگاه تهران سیدکاظم علوی پناه دانشیار دانشکده جغرافیا، دانشگاه تهران تیمور جعفری دانشجوی دکترای جغرافیای طبیعی (ژئومورفولوژی)، دانشگاه تهران

abstract this survey accomplished for asessment and mechanism recognition of chenaran watershed landslide effective factors and its zonation based via lim model. primarily recognized effective factors, through studing and field survey and evaluated by landslide index method(lim) then based on their weight in model, landslide hazard zonation was done.then evaluated this model competence in zonat...

Journal: :Ecological applications : a publication of the Ecological Society of America 2009
José M Fariña Brian R Silliman Mark D Bertness

We experimentally examined plant zonation in a previously unstudied Chilean salt marsh system to test the generality of mechanisms generating zonation of plants across intertidal stress gradients. Vertical zonation in this system is striking. The low-lying clonal succulent, Sarcocornia fruticosa, dominates the daily flooded low marsh, while intermediate elevations are dominated by the much tall...

Journal: :Int. J. Applied Earth Observation and Geoinformation 2010
Shivani Chauhan Mukta Sharma M. K. Arora N. K. Gupta

In thepresent study,ArtificialNeuralNetwork (ANN)hasbeen implemented toderive ratingsof categories of causative factors, which are then integrated to produce a landslide susceptibility zonation map in an

2012
Thomas F. Allnutt Timothy R. McClanahan Serge Andréfouët Merrill Baker Erwann Lagabrielle Caleb McClennen Andry J. M. Rakotomanjaka Tantely F. Tianarisoa Reg Watson Claire Kremen

The Government of Madagascar plans to increase marine protected area coverage by over one million hectares. To assist this process, we compare four methods for marine spatial planning of Madagascar's west coast. Input data for each method was drawn from the same variables: fishing pressure, exposure to climate change, and biodiversity (habitats, species distributions, biological richness, and b...

Landslides are considered as natural disasters that lead to many deaths and severe property damages worldwide. Therefore, it is necessary to investigate the effective factors in order to make urgent planning and to present management solutions for the sensitive regions. Massive movement of materials, such as a landslide, is one of the problematic hillslope processes in Javanrood located in the ...

ژورنال: علوم آب و خاک 2014

Landslide as a global disaster causes great human and financial damages. Identification of landslide causes and zonation assist in instability control and construction projects siting. This study aimed to identify landslide causes and instability zonation in Ardal county, Chaharmahal va Bakhtiari province, Iran, using Analytical Hierarchy Process (AHP). Current landslides were delineated throug...

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