Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TP [mg/l]
Algal bloom area [Km2/1000]
NDVI crop mean TN [mg/l/10]
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
Apr
Jun
Aug
Oct
Dec
2000
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jun
Aug
Oct
Dec
2001
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jul
Aug
Oct
Dec
2002
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jul
Aug
Oct
Dec
2003
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jul
Aug
Oct
Dec
2004
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jun
Aug
Oct
Dec
2005
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jun
Aug
Oct
Dec
2006
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jun
Aug
Oct
Dec
2007
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
Apr
Jun
Aug
Oct
Dec
2008
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jun
Aug
Oct
Dec
2009
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jun
Aug
Oct
Dec
2010
Fig. 14 Monthly profiles of Lake Taihu area covering 11 years (2000–2010): mean temperature
(
C/100), Chl-a (10eÀ2 μg/L), TN (10eÀ1 mg/L), TP (mg/L), compared with agricultural crop
phenology dynamics (NDVI) and algal bloom extent derived from MODIS data
104
P. Villa et al.
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TP [mg/l]
Algal bloom area [Km2/1000]
NDVI crop mean TN [mg/l/10]
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
Temp [°C/100] CHL-a [mg/l/100]
TN [mg/l/10] TP [mg/l]
Algal bloom area [Km2/1000]
NDVI agri crop mean
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
Apr
Jun
Aug
Oct
Dec
2000
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jun
Aug
Oct
Dec
2001
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jul
Aug
Oct
Dec
2002
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jul
Aug
Oct
Dec
2003
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jul
Aug
Oct
Dec
2004
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jun
Aug
Oct
Dec
2005
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jun
Aug
Oct
Dec
2006
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jun
Aug
Oct
Dec
2007
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
Apr
Jun
Aug
Oct
Dec
2008
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jun
Aug
Oct
Dec
2009
0.0
0.2
0.4
0.6
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Jan
Mar
May
Jun
Aug
Oct
Dec
2010
Fig. 14 Monthly profiles of Lake Taihu area covering 11 years (2000–2010): mean temperature
(
C/100), Chl-a (10eÀ2 μg/L), TN (10eÀ1 mg/L), TP (mg/L), compared with agricultural crop
phenology dynamics (NDVI) and algal bloom extent derived from MODIS data
104
P. Villa et al.