The experiment used a Quartzarenic Neosol (QN), occurring in Mocambinho
, in the municipality of Jaiba, situated in the state of Minas Gerais, and Red Latosol (RL), from the city of Sete Lagoas, also in Minas Gerais.
The sugarcane used in this study was acquired in Epamig--Experimental Farm of Mocambinho
, in the city of Jaiba, State Minas Gerais.
"ainda restam alguns pontos-reliquia das matas verdes naturais, que sao conservadas como unidades ambientais: o Parque da Cidade (Primavera), o Parque de Teresina (Mocambinho
), o Zoobotanico (zona nordeste da cidade) e alguns trechos que margeiam os Rios Parnaiba e Poti, entre outros de menor expressao, considerados como areas de conservacao/preservacao.
Estes reservatorios possibilitam a perenizacao artificial de 339 km do rio Acarau juntamente com outros acudes publicos com menor capacidade de armazemento: Acarau Mirim, Arrebita, Bom Jesus I, Bonito, Carao, Carmina, Farias de Sousa, Flamengo, Forquilha, Jaibaras, Mocambinho
, Olheiros, Poco Salgado, Sobral, Soares e Sao Vicente.
Studies to evaluate the zooplankton community were conducted between 2003 and 2007 in seven urban continental water bodies in the state of Piaui: six of them were characterised as lentic (Grande, Bezerra, Joana and Laranjeiras reservoirs, and Nova Brasilia and Mocambinho lagoons) and one exhibited lotic conditions (a stretch of the Parnaiba river), all of them located in five municipalities from this State (Figure 1).
Group 1 included the Grande reservoir, Nova Brasilia and Mocambinho lagoons, and the group 2 included the Joana and Laranjeiras reservoirs.
Group 1 was formed by cosmopolitan (Moina micrura) and/or Neotropical species (Diaphanosoma spinulosum and Moina reticulata), and those occurring in Nova and Mocambinho. Group 2 was formed by resilient species occurring in the polluted Parnaiba river, and Group 3 was formed by species occurring primarily in Bezerra reservoir (see Figure 4).
Group 1 in the cluster analysis was formed by ecosystems already receiving organic pollution from human settlements (Grande, Nova Brasilia and Mocambinho reservoirs); and, group 2 included those with lower human impacts (see Table 1).