نتایج جستجو برای: soil fauna
تعداد نتایج: 195195 فیلتر نتایج به سال:
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...
BACKGROUND AND PURPOSE Forest soil microorganisms and fauna decompose the organic materials, and thus strongly influence the nutrient cycling of the ecosystem. Soil microorganisms also contribute to soil structure and soil fertility. In Taiwan, the microbial distributions of soils have only been determined in acidic soil, inorganic acidic soil, upland soil, alkaline soil and power plant areas. ...
Soil fauna is an essential component of the soil ecosystem for maintaining nutrient cycling and biological fertility. This study assessed biodiversity (macrofauna, mesofauna, microfauna) to define strategies sustainable management tropical agricultural soils. The was carried out in 200 production units Department Sucre, northern Colombia. Physicochemical properties (organic matter, nitrogen, ph...
Soil organisms are the biological drivers of processes and functions that maintain soil properties ecosystem services. fauna contribute to nutrient turnover, decomposition other important biogeochemical processes. This investigation assessed diversity abundance arthropods (0.1–4 mm) along a chronosequence land use types covering relatively small geographical distance but with same underlying ty...
mites of the family ascidae constitute an important group of predator arthropods that live in soil make a living, on plants and an stored products, and some species of which are in close association with humans and animals. a faunestic survey was carried out to identify the mites of the family ascidae in guilan province, northern iran, during 2007-2009. samples were taken from such different ha...
Across Europe, the majority of afforestation is carried out on former agricultural land. Given this current planting trend it is important to assess the impact that afforestation will have on the flora and fauna of habitats typically used for afforestation. The study aim was to investigate the initial effects of afforestation (5 years after planting) on the ground-dwelling spider fauna within t...
One of the most challenging fauna to study in situ is the obligate cave fauna because of the difficulty of sampling. Cave-limited species display patchy and restricted distributions, but it is often unclear whether the observed distribution is a sampling artifact or a true restriction in range. Further, the drivers of the distribution could be local environmental conditions, such as cave humidi...
The taxon Protista was originally given by Ernst Haeckel in 1866 and included all unicellular organisms either prokaryotic or eukaryotic. In the modern view, the protists are eukaryotic organisms of unicellular organization, and thus the term embraces classical protozoa, unicellular phototrophic organisms such as diatoms, and lower unicellular fungi (28). Due to the extreme diversity, the taxon...
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