Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8920060 | Perspectives in Ecology and Conservation | 2018 | 5 Pages |
Abstract
First-order streams in Brazil are protected by the Native Vegetation Protection Law of Brazil (NVPL), which regulates the land-use in rural properties and is linked with aquatic conservation. We investigated the importance of the data-set resolution to identify first-order streams (State of São Paulo, Brazil) and estimated its length compared to other water bodies. We found that first-order streams represent around 58% of the total length of the drainage system. In addition, we compared this database with that of the Environmental Rural Registry (CAR in Portuguese). Compared with the lower resolution data-set, the length of first-order streams self-declared in CAR was 80% lower. We also found a concerning number of small dams in first-order streams, which severely changes their dynamics. Therefore, we recommend the use of finer resolution data-sets in order to create tools to support legal compliance that goes beyond the limited information provided by CAR.
Keywords
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Authors
Ricardo H. Taniwaki, Yuri A. Forte, Gabriela O. Silva, Pedro H.S. Brancalion, Caroline V. Cogueto, Solange Filoso, Silvio F.B. Ferraz,