7 documents found, page 1 of 1

Soil characterization and drainage effects in a savanna palm swamp (vereda) of ...

Brazilian palm swamps (veredas) are fundamentals in the hydrological balance of watercourses in the Brazilian savanna (Cerrado). The “sponge effect” of their soils is the main factor controlling local hydrology, storing rainwater, and functioning as headwaters. The restricted knowledge of these tropical ecosystems has led to increased losses, poor preservation, and reduction in their ecosystem services. Veredas...

Organic matter composition and paleoclimatic changes in tropical mountain peatl...

Tropical peatlands are important ecosystems for Planet Earth, as they store large amounts of carbon and water. A better understanding of the impact of vegetation type and altitude in content, composition, and rate of accu mulation of organic matter is key for assessing the current role of such environments. This study evaluated fibric and soluble fractions as well as the lignocellulosic and the isotopic composi...

Rehabilitation with forage grasses of an area degraded by urban solid waste dep...

Dry matter yield and chemical composition of forage grasses harvested from an area degraded by urban solid waste deposits were evaluated. A split-plot scheme in a randomized block design with four replicates was used, with five grasses in the plots and three harvests in the subplots. The mineral content and extraction and heavy metal concentration were evaluated in the second cut, using a randomized block desig...

Evaluation of no-tillage of common bean in a native field in the high Jequitinh...

High Jequitinhonha Valley is a region of Minas Gerais State, Brazil, where agriculture is underdeveloped and the agricultural systems have low efficiency and yield rates. As a result, environmental degradation rates are high, and it is thus necessary to adjust the soil management techniques. This study aimed to evaluate the no-tillage of common bean with the direct desiccation of a sandy soil native field of Hi...

Gênese de solos derivados de rochas ultramáficas serpentinizadas no sudoeste de...

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:46:00Z No. of bitstreams: 1 S0100-06832006000300013.pdf: 1626424 bytes, checksum: f03fee5fd7c301ebbc21f099bc45043c (MD5); Made available in DSpace on 2013-08-22T18:46:00Z (GMT). No. of bitstreams: 1 S0100-06832006000300013.pdf: 1626424 bytes, checksum: f03fee5fd7c301ebbc21f099bc45043c (MD5) Previous issue date: 2006-06-01; Made availa...

Gênese e classificação de Latossolos em topossequência das chapadas do alto Val...

Evolução geoquímica e mineralógica em perfis de alteração sobre rochas serpenti...