نتایج جستجو برای: macrofauna

تعداد نتایج: 1048  

حسینی, سید محسن, سلمان ماهینی, عبدالرسول , صیاد, احسان , غلامی, شایسته , محمدی , جهانگرد,

The spatial distribution of soil organisms is influenced by the plant cover, thus resulting in a horizontal mosaic of areas subjected to gradients of nutrient availability and microclimatic conditions.This study was conducted to investigate the spatial variability of soil macrofauna in relation to vegetation density in the riparian forest landscape of Karkhe. The vegetation density was determin...

2016
Shaieste Gholami Ehsan Sayad Robin Gebbers Michael Schirrmann Monika Joschko Jens Timmer

Soil macrofauna play major roles in ecosystem functioning; however the ecological effects of macrofauna are influenced by their spatial distribution. Close relationships to soil properties are one major factor for determining spatial pattern of macrofauna. Information about macrofauna distribution pattern is scarce especially at regional scales. The limited numbers of studies available suggest ...

2012
Karin Junker Dusan Sovilj Ingrid Kröncke Joachim W. Dippner

Climate induced changes in benthic macrofauna–a non-linear model approach , This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that duri...

صیاد, احسان, طالشی, حمید , عسکرپور, محمدرضا ,

Soil macrofauna biodiversity has an important role in ecosystem services. In order to find how soil macrofauna biodiversity is related to trees and shrubs in riparian forest of Maroon River in Khuzestan province, soil macrofauna were collected using hand-sorting procedure from 0-10 and 10-25 cm soil depths in 50 cm × 50 cm plots, 50 meters from each other on transects 100 meters apart and perpe...

Journal: :آب و خاک 0
احسان صیاد سید محسن حسینی وحید حسینی محمدحسن صالحه شوشتری

plantations may influence soil fauna directly or indirectly. this research was conducted in order to study the influence of species plantations on soil macrofauna. plantations of eight tree species including nitrogen fixing trees and non-nitrogen fixing trees based on complete randomized block design with 3 replicates were established in 1372 in dez riverside. soil macrofauna were studied rando...

صیاد, احسان, طالشی, حمید, عسکرپور, محمد رضا,

In this study, the abundance and biomass of soil macrofauna were investigated in natural forests of tamarisk and Euphrates poplar in riparian forests of Maroon River in Khuzestan province. Soil macrofauna were collected using 175 sampling plots 50 meter distance from each other on 21 parallel lines with 100 meters distance from each other and perpendicular to the river. Soil macrofauna sampling...

2011
N. Pauli E. Barrios T. Oberthür

Running title: 23 Soil macrofauna in the 'Quesungual' agroforestry system 24 25 2 Abstract 26 Smallholder agroforestry systems often incorporate features that are associated with abundant, 27 diverse soil macrofauna populations. This study sampled soil macrofauna communities across 28 four major land uses present within agricultural landscapes where the Quesungual Slash-and-29 Mulch Agroforestr...

Journal: :بوم شناسی کشاورزی 0
قربانعلی رسام ناصر لطیفی افشین سلطانی بهنام کامکار

the effects of land use, crop type and crop management on soil fauna were investigated with survey of four habitats in jajarm. the habitats included rangelands, alfalfa (medicago sativa l.) fields and low-input and high-input of wheat (triticum aestivum l.) fields, each with four sample units. in each sample unit, the macrofauna collected with pitfall traps, sorted and counted in terms of famil...

Journal: :Journal of environmental biology 2011
C Salvio A N Lopez P L Manetti N L Clemente

Studies were done to see the effects of five toxic baits based on metaldehyde and/or carbaryl on the taxonomic composition of soil meso and macrofauna, and determined the density of beneficial organisms in soybean under no tillage. Six treatments were tested and soil monoliths were taken before application and at 45 and 75 days after application (DAA). Before application, 1601 individuals were ...

2008

Meurer, A.Z. & Netto,S.A. 2007. Seasonal dynamics of benthic communities in a shallow sublittoral site of Laguna Estuarine System (South, Brazil). Braz. J. Aquat. Sci. Technol. 11(2):53-62. ISSN 1808-7035. The seasonal variability of the benthic community in a shallow sublittoral site was analyzed at the Laguna Estuarine System, a chocked lagoon in South Brazil. Seasonal replicate samples for t...

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