Growing season

n

Range

Skewness

Kurtosis

W^†

D^‡

mg NO₃ kg⁻¹

2003-2006

2533

ND^§ - 18,647

1.969

5.385

-

0.258^**

2007

1010

ND - 17,804

2.503

8.507

0.808^***

0.181^**

2008

869

ND - 17,012

2.981

12.623

0.716^***

0.238^**