Energy demand in soybean seeding on maize straw intercropped with forage

Funda����o de Amparo �� Pesquisa do Estado de S��o Paulo (FAPESP)

Carbono, carbono da biomassa microbiana e atividade enzim��tica em um solo sob mata natural, pastagem e cultura do algodoeiro

Funda����o de Amparo �� Pesquisa do Estado de S��o Paulo (FAPESP)

Classes de capacidade de uso do solo da bacia hidrogr��fica da Serra da Mantiqueira - UGRI 1

P��s-gradua����o em Engenharia Civil e Ambiental - FEB

Avalia����o da erodibilidade pelo m��todo Inderbitzen em solo n��o saturado da regi��o de Bauru - SP

P��s-gradua����o em Engenharia Civil e Ambiental - FEB

Contribui����o das ��guas subterr��neas para a vaz��o do Ribeir��o Boa Vista ou C��rrego do Lajeado

This paper aimed to give a contribution to improve water resources management, consists of the analysis of interaction among groundwater and streamflow, by through the analysis of the relationship between basic and total streamflow, based on measured hidrological data from Ribeir��o Boa Vista or C��rrego Lajeado. watershed. Comparisons among groundwaterflow in this basin with another one in Rio Corumbata�� basin were made based on the specific basic flow, in order to verify the possibility of the utilization of measured hydrological data in other basins with similar geological characteristics and soil use and occupation. Based upon the comparisons that were made, specific basic flow does not represent a good tool for extrapolation of measured data, indicating that this comparison shall be weighted by others characteristics as permeability and thickness of geological formations. Finally, it was possible to conclude that basic flow may be considered as an additional parameter for analysis of hydrological and hydrogeological characteristics of a basin and to provide subsidies to release legal licenses for water resources uses. related to surface water as well as for groundwater and may also be used as a tool for consolidation of integrated management of water resources, that is considered as a necessary and essential practice to avoid conflicts between users of water resources in a river basin.

Variabilidade espacial dos atributos f��sicos e qu��micos em um gleissolo mec��nico sob tr��s ��reas no munic��pio Arari - MA

P��s-gradua����o em Agronomia (Ci��ncia do Solo) - FCAV

Efeito do uso do solo sobre seus atributos na microrregi��o de Chapadinha-MA

P��s-gradua����o em Agronomia (Ci��ncia do Solo) - FCAV

Areas hidrologicamente homog��neas como subs��dio ao manejo de bacias hidrogr��ficas

P��s-gradua����o em Agronomia (Irriga����o e Drenagem) - FCA

O clima urbano de Rancharia (SP)

Funda����o de Amparo �� Pesquisa do Estado de S��o Paulo (FAPESP)

Influ��ncia do manejo do solo em atributos qu��micos, f��sicos e microbiol��gicos dos c��rregos Jaboticabal e Cerradinho

Coordena����o de Aperfei��oamento de Pessoal de N��vel Superior (CAPES)

Imagens digitais na an��lise do uso da terra de uma microbacia como subs��dio ao desenvolvimento sustent��vel

The present work sought to discriminate, to map and to quantify the areas of soil use of the Stream Monte Belo watershed - Botucatu (SP), obtained by digitale images. The cartographic bases were the shart planialtimetric, edited by IBGE (1969) and the satellite images LANDSAT - 7, passages of 21/01/1999, 08/01/2003 and 23/10/2006. The Software Idrisi Andes 15.0 were used for conversion of the analogical information for digital and for determination of the vegetable coverings areas. The results allowed to verify that the SIG - IDRISI Andes 15.0 were efficient in the quantification of the areas with soil use and that the analysis of the data showed a cash progress of the areas of reforestations to the detriment of the areas of pastures, especially from 1999, 2003 to 2006, when the field areas were substituted by the forestry in his totality. In spite of that progress, the forest areas that you correspond to the Permanent Preservation Areas, They are considerably preserved. That result comes to the encounter of the tendency of expansion of the forestry, especially after the installation of cellulose industries in the area, what worsened the environmental problems originating from of the practice of the monoculture.

Geoprocessamento aplicado na influencia do uso e ocupa����o do solo na temperatura aparente da superf��cie do munic��pio de Botucatu (SP)

Conselho Nacional de Desenvolvimento Cient��fico e Tecnol��gico (CNPq)

Capacidad de uso de la tierra en la cuenca de la Corriente del Lobo, Itatinga, S��o Paulo, Brasil

The objective of the research was to define the classes of use capacity of 2403.25 ha in the basin of the Corriente del Lobo - Itatinga (SP), (22��03'56" to 22��59'12" of latitude S and 48��38'47" to 48��41'25" of longitude W Gr.). The soil use capacity was obtained by using the SIG IDRISI 32 crossing the documents of steepness and soils and the document of judgment of classes of soil use capacity and of the utilitarian rising of the physical milieu. The classes and subclasses areas of use capacity presented the following values: IIIa - 68.60 ha (2.85%), IIIe,s - 1919.15 ha (79.86%); IIIe - 210.60 ha (8.76%); IVe - 3.38ha (0.14%); IVe,s - 157.42 ha (6.55%) and VIe,s - 44.10 ha (1.84%). The lands of the basin were distributed in three classes (III, IV and VI) and six subclasses but the biggest extension (79.9%) belonged to the subclass IIIe,s. The modules of the IDRISI allowed to discriminate, mapping and to quantify quickly the soil use capacity of the areas of classes and subclasses in the basin.

Sistema de Informa����es Geogr��ficas aplicado ao diagn��stico do uso da terra da bacia hidrogr��fica do C��rrego S��o Caetano - Botucatu (SP)

The study aimed to obtain the land use of the watershed Stream S��o Caetano - Botucatu (SP), through the satellite image. The cartographic databases were: planialtimetric letter in digital format (IBGE) used in georeferencing, and satellite image. Geographic Information Systems (GIS) -IDRISI Selva was use to perform the image georeferencing and to do the final thematic map. In the software CAD - CartaLinx, it was performed the delimitation of the area under study (boundary, drainage network and areas of use and coverage). The land use of the watershed showed that pasture was the class which occupied most of the area, with 34.51% (1117,94 ha), the remainder of the area was urban (692,19ha), forests (809,79ha), cultures (599,96ha) and a very small part of reforestation (19,53ha). The use of remote sensing and geoprocessing were very satisfactory in the present work. Technologies must be increasingly used in agricultural and environmental studies, because technological tools, such as Geographic Information System (GIS), present speed, efficiency, reliable results, helping in increasing sustainability

Adequabilidade das ��reas de vegeta����o rip��ria da microbacia do C��rrego Comur - Botucatu (SP) em fun����o da legisla����o ambiental

The inadequate soil use is an aggravating factor of the environmental degradation and ecological unbalance. The analysis of the use and covering of the soil, by information of Remote Sensing, constitutes a technique of great usefulness to the planning and administration of the ordered occupation and rational of the physical middle, besides making possible to evaluate and to monitor the preservation of areas of natural vegetation. This work sought to evaluate the conflicts of soil use in permanent preservation areas (PPA) in Stream Comur watershed - Botucatu (SP) through Geographical Information System and satellite image of 2009. The study area is located among the geographical coordinates 48o 23��� 04��� to 48o 25��� 54��� of longitude WGr. and 22o 44��� 42��� to 22o 48��� 12��� of latitude S with an area of 1,719.6 ha. The results allowed to verify that the geoprocessing techniques were of fundamental importance in the identification of the areas of soil use, of APP and of conflicts among use and PPA where it leaves of the areas of APP is being used inadequately. In terms of environmental sustainability, it can be deduced that the watershed is very unfavorable, once it presents 70.67% of area used inadequately with sugarcane and pasture.