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Record W7120716270

Water resources in veredas in the cerrado biome in Goiás state

2010· dissertation· pt· W7120716270 on OpenAlex
Sidney Pereira

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueLA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · 2010
Typedissertation
Languagept
FieldEnvironmental Science
TopicEnvironmental and biological studies
Canadian institutionsnot available
Fundersnot available
KeywordsBiomeWater resourcesWater qualityAgricultureChristian ministryVegetation (pathology)Water tableHydrology (agriculture)Water balance
DOInot available

Abstract

fetched live from OpenAlex

Among the several vegetation types of the Cerrado (savanna) biome, there are the veredas (a type of waterway or water source), humid subsystem that participate in the control of the flow water table, playing key role in the hydrological balance of water courses. Such environments, however, are sensitive to environmental change, low regenerative capacity and are being degraded mainly due to agricultural activities. Although the quality of water in waters resources is the subject of studies, few refer specifically to the veredas of the Cerrado and rare in relation to the amount of flowed water. In this sense, this study aims to characterize quantitatively and qualitatively the waters resources, in conserved and anthropic veredas of the Cerrado biome, through the evaluation of the consequences of these interferences in these environments. In this context, it was looked for to monitor: the behavior of the water table level of the selected veredas; the flow of the course of these drainage, and; the quality of the water through their aspects physical, chemical, microbiological and agricultural chemicals, that composed WQI-CCME (water quality index developed by Canadian Council of the Ministry of the Environment) with reference to these variables values predetermined by the Resolution Conama n.º 357/05. Six veredas were selected, divided in two suits, called "suit 1" (T1, in the city of Bela Vista de Goiás/GO) and “suit 2” (T2, in the city of Silvânia/GO). Each suit contains a vereda inserted in crop region (VL) and another inserted in area of grassland (VP) also conserved vereda (VC). The results showed that vereda with disturbed grassland (T2VP), presented larger variation in the water table level, probably due to less water infiltration into the soil, its surroundings, due to existence of very degraded pastures. The abrupt variation of the flow is related, among other factors, with the topography of the land and the use of anthropic its surroundings. In the determination of WQI-CCME, the variables "pH", "soluble iron" and "dissolved oxygen" were the most restrictive for the veredas of T1. In T2 were more restrictive the variables pH and dissolved oxygen. The effect of the seasonality was not observed on the value of WQI-CCME. The "dissolved oxygen" is not an efficient variable to determine the quality of waters in veredas, as the water emerges from underground, that naturally have low concentrations of dissolved oxygen. In case they were just adopted only the references values of the Resolution Conama n.º 357/05, the veredas would belong to Classes 3 and 4, what doesn't correspond to the definitions of this resolution for these water resources, because the veredas present water of good quality and with several applications beyond those provided in these classes.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Research integrity
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.459
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0020.001
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.018
GPT teacher head0.235
Teacher spread0.218 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it