Variation in soil organic carbon stock in different land uses and altitudes in Bagrot Valley, Northern Karakoram

Figures & data

Figure 1. Bagrot valley, Central Karakoram National Park, Gilgit-Baltistan, Pakistan.

Figure 2. Variation Soil bulk density, SOC (%) and SOCS (Mg/Ha) across different land uses in various depths. Values having the same letter do not differ significantly from each other with respect to land uses and depth at p ≤ 0.05. Letters x, y, z indicate the variation within land uses in different depths, while, letters a, b, c indicate the variation among the land uses in each depth. Abbreviation BD (bulk density); SOC (soil organic carbon) and SOCS (soil organic carbon stock).

Table 1. Effect of land uses on soil BD (g cm⁻³) and SOC (%) and stock in different depth.

Variables	BD (g cm^−3)	SOC (%)	SOCS (Mg ha^−1)
Land use	1107.00***	3977.00***	1126.00***
Depth	244.30***	3701.00***	1020.00***
Land use * depth	3.58*	314.76***	32.48**

Notes: Values in column and rows represents F-values. BD, Bulk density; SOC, soil organic carbon; SOCS, soil organic carbon stock.

*^, **^, ***Significant at 0.1, 0.05 and 0.01 level, respectively.

Figure 3. Relationship of soil organic carbon stock with different variable in arable land.

Note: * indicates correlation is significant at p ≤ 0.05; abbreviations BD (bulk density; SOC (soil organic carbon) and SOCS (soil organic carbon stock).

Figure 4. Relationship of soil organic carbon stock with different variable in forest.

Note: * indicates correlation is significant at p ≤ 0.05; abbreviations BD (Bulk density; SOC (soil organic carbon) and SOCS (soil organic carbon stock).

Figure 5. Relationship of soil organic carbon stock with different variable in Pasture.

Note: * indicates correlation is significant at p ≤ 0.05; abbreviations BD (bulk density; SOC (soil organic carbon) and SOCS (soil organic carbon stock).

Table 2. Effect of altitude on soil organic carbon stock in each land uses in various depth.

Variables	SOCS (Forest)	SOCS (Pasture)	SOCS (Arable land)
Altitude	5920.01***	1986.01***	1109.00***
Depth	50470.00***	1599.00***	8000.00***
Altitude * depth	633.27***	109.08***	377.37***

Notes: Values in column and rows represents F-values. SOCS, soil organic carbon stock.

***Significant at 0.01 level.