# Analysis of a Landscape Intensely Modified by Agriculture in the Tiete-Jacare Watershed, Brazil
## 3 Results  
The one-year interval showed a predominance of agricultural activities, with 900,000 ha (76%) in 2018 being classified as exposed soil, citriculture, pasture, silviculture, sugar cane, urban area, vegetation, and water (Figure 5 and Appendix A). In 2016, 900,885 ha was \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Acquisition Date** & **Points Orbits** & **Cloudy Pixels \%** & **Granule ID** & **Spatial Resolution** \\ \hline
09/2018 & T22 KGB & 0\% & S2A\_MSIL2A\_20180917 & 10 m \\
08/2018 & T22 KFA & 0\% & S2A\_MSIL2A\_20180828 & 10 m \\
09/2018 & T22 KGA & 0\% & S2A\_MSIL2A\_20180917 & 10 m \\
08/2018 & T22 KGV & 0\% & S2A\_MSIL2A\_20180828 & 10 m \\
07/2017 & T22 KGB & 0\% & S2B\_MSIL2A\_20170729 & 10 m \\
07/2017 & T22 KFA & 0\% & S2B\_MSIL2A\_20170729 & 10 m \\
07/2017 & T22 KGA & 0\% & S2B\_MSIL2A\_20170729 & 10 m \\
07/2017 & T22 KFA & 0\% & S2B\_MSIL2A\_20170729 & 10 m \\
07/2017 & T22 KGV & 0\% & S2B\_MSIL2A\_20170729 & 10 m \\
09/2016 & T22 KGB & 0\% & S2A\_MSIL2A\_20160917 & 10 m \\
08/2016 & T22 KFA & 0\% & S2A\_MSIL2A\_20160828 & 10 m \\
09/2016 & T22 KGA & 0\% & S2A\_MSIL2A\_20160917 & 10 m \\
09/2016 & T22 KHA & 0\% & S2A\_MSIL2A\_20160917 & 10 m \\
08/2016 & T22 KGV & 0\% & S2A\_MSIL2A\_20160828 & 10 m \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Sentinel-2 images information. occupied with agricultural activities (as opposed to 907,529 ha in 2017, and 894,719 ha in 2018), especially sugar cane (20%) activities, followed by exposed soil (22.62%), pasture (13.53), citriculture (13.58), and silviculture (5.83%) (Figure 6 and Table 3). The regions did not have significant changes during the analysed period; however, the small change observed could explain the consolidation state of the activities, as the regions in which agricultural activities occur are already predefined and delimited. Because of the agricultural characteristics, in Brazil exposed soil areas are mainly associated with crops, as they refer to the fallow period and soil preparation for the next harvest. In the Tiete-Jacare Watershed they follow the same traits, being these regions associated with sugar cane production. As the cattle economy decreased in the region over the past decades, pasture areas appear only in small territorial portions, becoming a subsistence or small-scale production activity. The sugar cane areas are predominant in practically all municipalities of the watershed. However, in some regions other kinds of crops are prevalent, for example, citriculture and silviculture cultivations. The urban areas occupied 140,654 ha in 2016, 149,998.10 ha in 2017, and 177,015.20 ha in 2018, and this growth was more noticeable in medium to large municipalities, such as Bauru, Jau, Araraquara, and Sao Carlos. Small municipalities such as Bocaina, Ibate, and Itirapina retained their structures focused on activities related to the first and second sectors, with technical support from the larger municipalities. The increase in the urban area reflects the urbanization process in the region, the state, and the country, which started in the 20 th century as a result of the industrialization