Fuzzy Mapping of Climate Favorability for the Cultivation of Conilon Coffee in the State of Bahia, Brazil

Figures & data

Figure 1. Climate classification for Brazil, according to the Koppen criteria, highlighting the state of Bahia

Figure 2. Fuzzy sets adjusted to rainfall data – linear model (a), temperature – exponential model (b) and for relative air humidity – exponential model (c)

Table 1. Criteria for class limit determination of two fuzzy sets for rainfall

Months	Classes
	Low	Ideal
Jan	<178 mm	≥178 mm
Feb	<106 mm	≥106 mm
Mar	<144 mm	≥144 mm
Apr	<85 mm	≥85 mm
May	<71 mm	≥71 mm
Jun	<55 mm	≥55 mm
Jul	<61 mm	≥61 mm
Aug	<72 mm	≥72 mm
Sep	<87 mm	≥87 mm
Oct	<106 mm	≥106 mm
Nov	<191 mm	≥191 mm
Dec	<205 mm	≥205 mm

Notes: Nobrega et al. (2008); Jan – January; Feb – February; Mar – March; Apr – April; Jun – June; Jul – July; Aug – August; Sep – September; Oct – October; Nov – November; Dec – December.

Table 2. Criteria for class limit determination of two fuzzy sets for temperature and relative air humidity

Variable	Classes
	Low	Ideal	High
Mean air temperature	<22°C	22 a 26°C	>26°C
Relative air humidity	<80%	80 a 90%	>90%

Notes: Silva et al. (2015)

Table 3. Models and parameters of the mean variograms adjusted to mean monthly rainfall, temperature, and relative air humidity in the state of Bahia

Month	Model	C0	C0 + C	A (km)	SDI (%)	R^2	R^2(VC)
Rainfall
Jan	Sph	0.15	0.90	394	16.8	99.3	57.9
Feb	Sph	0.31	0.91	386	33.7	97.2	64.3
Mar	Exp	0.29	0.93	353	31.2	96.8	57.2
Apr	Exp	0.32	1.03	317	31.6	97.5	59.5
May	Exp	0.31	1.27	231	24.3	95.1	67.2
Jun	Exp	0.18	1.21	209	14.7	96	65.8
Jul	Exp	0.08	1.22	195	6.6	96.5	56.7
Aug	Sph	0.02	1.10	90	2.2	99.1	58.4
Sep	Sph	0.04	1.09	85	3.4	98.4	53.5
Oct	Gau	0.35	1.56	680	22.4	98.8	69.2
Nov	Sph	0.21	1.73	860	12.1	97.9	69.8
Dec	Gau	0.52	2.23	1020	23.1	93.7	77.2
Mean air temperature
Jan	Sph	0.25	1.19	540	21.0	97.7	61.2
Feb	Sph	0.19	0.95	362	20.0	97.1	60.4
Mar	Exp	0.23	1.23	490	18.7	97.2	56.3
Apr	Sph	0.22	1.05	383	21.0	98.2	55.3
May	Sph	0.19	1.13	390	16.8	98.7	59.3
Jun	Exp	0.26	1.11	315	23.3	95.4	58.7
Jul	Sph	0.28	1.03	269	26.8	71.6	54.2
Aug	Sph	0.33	1.09	357	30.1	93.8	67.8
Sep	Sph	0.30	1.24	560	24.6	99.5	68.3
Oct	Sph	0.30	1.19	506	25.5	93.9	60.2
Nov	Sph	0.28	1.42	737	19.6	99.8	51.5
Dec	Exp	0.32	1.50	1113	21.7	97.7	71.2
Relative air humidity
Jan	Sph	0.24	1.16	540	20.8	97.7	58.6
Feb	Sph	0.19	0.98	362	19.0	97.1	54.3
Mar	Exp	0.27	1.13	490	24.6	97.2	67.3
Apr	Sph	0.21	1.02	383	20.0	98.2	66.9
May	Sph	0.17	1.03	390	16.6	98.7	65.2
Jun	Exp	0.26	1.11	315	23.3	95.4	56.1
Jul	Exp	0.09	0.99	128	2.8	92.3	64.2
Aug	Exp	0.14	0.94	230	2.6	85.0	65.3
Sep	Gau	0.25	2.24	886	0.3	88.9	67.3
Oct	Sph	0.11	1.55	770	0.6	92.7	68.9
Nov	Gau	0.32	1.76	760	0.8	81.9	54.2
Dec	Sph	0.15	0.65	180	0.7	77.1	55.1

Notes: Jan – January; Feb – February; Mar – March; Apr – April; Jun – June; Jul – July; Aug – August; Sep – September; Oct – October; Nov – November; Dec – December; C₀ – Nugget effect; C₀ + C – Sill; A – range; SDI – Spatial dependency index; R² – Coefficient of determination of the model; R² (VC) – Coefficient of cross validation determination; Exp – Exponential; Sph – Spherical; Gau – Gaussian.

Figure 3. Thematic maps of the fuzzy classification of mean monthly rainfall for the state of Bahia. Jan – (A); Mar – (B); Nov – (C); Dec – (D); Pertinence with values close to or equal to 0 – Less climatic favorability for the development of conilon coffee; Pertinence with values close to or equal to 1 – Greater climatic favorability for the development of conilon coffee

Figure 4. Thematic maps of the fuzzy classification of mean monthly temperature for the state of Bahia. Jan – (A); Feb – (B); Mar – (C); Apr – (D); May – (E); Jun – (F); Jul – (G); Aug – (H); Sep – (I); Oct – (J); Nov – (K); Dec – (L); Pertinence with values close to or equal to 0 – Less climatic favorability for the development of conilon coffee; Pertinence with values close to or equal to 1 – Greater climatic favorability for the development of conilon coffee

Figure 5. Thematic maps of the fuzzy classification of mean monthly relative air humidity for the state of Bahia. Jan – (A); Feb – (B); Mar – (C); Apr – (D); May – (E); Jun – (F); Jul – (G); Aug – (H); Sep – (I); Oct – (J); Nov – (K); Dec – (L)); Pertinence with values close to or equal to 0 – Less climatic favorability for the development of conilon coffee; Pertinence with values close to or equal to 1 – Greater climatic favorability for the development of conilon coffee

Figure 6. Fuzzy mapping of monthly climate favorability for the cultivation of conilon coffee in the state of Bahia. Jan – (A); Feb – (B); Mar – (C); Apr – (D); May – (E); Jun – (F); Jul – (G); Aug – (H); Sep – (I); Oct – (J); Nov – (K); Dec – (L)); Pertinence with values close to or equal to 0 – Less climatic favorability for the development of conilon coffee; Pertinence with values close to or equal to 1 – Greater climatic favorability for the development of conilon coffee

Nobrega, N.E.F., J.G.F. Silva, H.E. Ramos, and F.S. Pagung. 2008. Balanço hídrico climatológico e classificação climática de Thornthwaite e köppen para o município de Marilândia – ES. INCAPER-ES. Boletim Técnico. São Mateus, Espírito Santo - Brasil.

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