The Scientific World Journal / 2012 / Article / Tab 5 / Research Article
Interannual Variation in Root Production in Grasslands Affected by Artificially Modified Amount of Rainfall Table 5 Mean values (±SE) of dry mass of rhizomes, roots, and total below-ground biomass (TBB) under different amounts of precipitation (dry, ambient and wet treatments) recorded in five years (2006–2010): results of one-way ANOVA analysis (NS: not significant, *
𝑃
<
0
.
0
5
, **
𝑃
<
0
.
0
1
, ***
𝑃
<
0
.
0
0
1
). Different letters denote significantly different values for rhizomes, roots and total separately (Tukey HSD test (
𝑃
<
0
.
0
5
) after ANOVA).
Year Rhizomes Roots TBB Dry Amb Wet
𝑃
Dry Amb Wet
𝑃
Dry Amb Wet
𝑃
Lowland grassland 2006
2
2
5
±
3
3
a
2
1
9
±
2
6
a
1
6
9
±
2
6
aNS
8
3
0
±
3
4
a
7
3
2
±
5
2
a
8
5
4
±
8
1
aNS
1
0
5
6
±
5
6
a
9
5
1
±
5
6
a
1
0
2
2
±
9
9
aNS 2007
1
6
5
±
3
1
a
1
6
3
±
2
3
a
1
8
6
±
3
5
aNS
6
5
4
±
3
9
a
8
8
1
±
7
5
b
9
1
9
±
5
3
b
**
8
1
8
±
4
7
a
1
0
4
5
±
8
6
b
1
1
0
4
±
7
2
b
*
2008
1
4
2
±
2
5
a
1
9
2
±
4
4
a
3
4
9
±
6
2
b
*
8
2
9
±
5
4
a
9
1
7
±
1
1
2
a
7
6
4
±
4
1
aNS
9
7
1
±
4
0
a
1
1
0
9
±
1
1
8
a
1
0
7
6
±
7
2
aNS 2009
1
9
2
±
2
6
a
1
3
1
±
2
9
a
1
8
0
±
4
1
aNS
7
2
5
±
7
1
a
8
1
3
±
6
8
a
6
7
9
±
6
7
aNS
9
1
7
±
7
4
a
9
4
3
±
7
1
a
8
5
9
±
9
4
aNS 2010
1
0
9
±
2
0
a
1
6
6
±
2
5
a
3
2
1
±
1
2
2
aNS
7
2
9
±
1
1
5
a
1
0
4
3
±
1
0
3
a
9
5
3
±
1
5
4
aNS
9
2
8
±
1
0
9
a
1
2
0
8
±
1
1
8
a
1
2
9
4
±
2
0
5
aNS Highland grassland 2006
3
6
7
±
5
7
a
4
6
4
±
1
0
7
a
5
6
5
±
8
2
aNS
1
5
4
9
±
9
6
a
1
6
0
9
±
7
2
ab
1
8
5
4
±
9
4
b
*
1
9
1
6
±
1
2
4
a
2
0
7
4
±
1
7
1
ab
2
4
1
9
±
1
4
2
b
*
2007
2
3
6
±
4
4
a
3
4
7
±
4
8
ab
4
1
9
±
7
2
b
*
9
6
1
±
9
9
a
1
2
8
2
±
1
1
7
b
1
3
6
0
±
1
0
0
b
*
1
1
9
7
±
1
2
4
a
1
6
2
9
±
1
4
9
b
1
7
7
9
±
1
3
5
b
*
2008
3
0
0
±
2
6
a
4
2
1
±
9
8
a
9
8
9
±
3
1
0
b
*
1
0
0
9
±
1
2
4
a
1
4
0
3
±
5
6
b
1
3
6
8
±
1
0
4
b
*
1
3
0
9
±
1
2
1
a
1
8
2
4
±
1
2
5
b
2
3
5
7
±
2
9
4
b
**
2009
2
7
6
±
5
5
a
7
5
4
±
1
5
9
b
6
8
0
±
1
6
6
b
*
1
1
4
6
±
1
3
1
a
1
1
7
9
±
8
6
a
1
3
1
3
±
1
2
9
aNS
1
4
2
2
±
1
8
0
a
1
9
3
2
±
1
5
8
ab
1
9
9
3
±
2
0
5
b
*
2010
5
0
3
±
1
4
8
a
4
4
9
±
1
3
8
a
5
6
8
±
1
0
8
aNS
1
1
8
5
±
1
0
4
a
1
1
9
8
±
9
0
a
1
6
5
1
±
1
1
8
b
**
1
6
4
1
±
2
1
5
a
1
6
4
7
±
1
9
4
a
2
1
1
2
±
2
1
8
aNS Mountain grassland 2006
4
0
1
±
1
0
2
a
4
9
9
±
8
2
a
4
8
6
±
7
6
aNS
1
3
6
5
±
1
1
6
a
1
5
1
9
±
1
1
1
a
1
5
6
8
±
2
1
1
aNS
1
7
6
6
±
1
5
1
a
2
0
1
8
±
9
4
a
2
0
5
4
±
1
8
4
aNS 2007
4
2
2
±
1
1
4
a
5
2
6
±
7
6
a
5
1
1
±
9
2
aNS
9
8
2
±
7
5
a
9
5
4
±
7
0
a
1
0
1
5
±
1
2
5
aNS
1
4
0
4
±
1
0
3
a
1
4
7
9
±
1
1
2
a
1
5
2
6
±
1
1
3
aNS 2008
3
1
7
±
9
7
a
4
3
4
±
7
8
a
4
5
7
±
6
8
aNS
8
5
5
±
8
2
a
9
4
7
±
6
1
ab
1
1
1
4
±
5
6
b
*
1
1
7
2
±
9
6
a
1
3
8
0
±
1
3
4
ab
1
5
7
1
±
1
1
1
b
*
2009
3
3
0
±
7
7
a
3
8
1
±
9
2
a
3
8
3
±
9
4
aNS
8
8
8
±
5
2
a
1
1
6
7
±
4
9
b
1
1
5
4
±
7
6
b
**
1
2
1
8
±
1
0
5
a
1
5
4
8
±
1
2
1
a
1
5
3
6
±
1
5
7
aNS 2010
2
2
7
±
4
8
a
3
5
6
±
6
1
a
3
2
2
±
5
5
aNS
1
3
7
2
±
9
1
a
1
3
1
8
±
9
0
a
1
4
2
9
±
5
3
aNS
1
5
9
9
±
1
3
0
a
1
6
7
4
±
1
4
1
a
1
7
5
1
±
4
8
aNS
