Erratum to: Environ Earth Sci DOI 10.1007/s12665-009-0281-4

The original version of this article unfortunately contained two mistakes. In the legends to Fig. 6 and Table 2 it should read P < 0.05 instead of P > 0.05.

The correct versions are given below.

Fig. 6
figure 6

Change trend spatial distribution of yearly NDVI maximum from 1998–2007 (P < 0.05)

Table 2 The slope statistics of the yearly MVC NDVI change trend in the northern China from 1998–2007 (P < 0.05)