Figures captions
Fig. 1. Spatial distribution of the land use/land cover change study sites in the southwest China Karst region.
Fig. 2. The response ratio (lnRR ) for SOC and TN storage calculating by FD and ESM methods under (a) deforestation and (b) land restoration conditions. The response ratio for (c) soil mass due to land-use changes. DF indicates DF, LR indicates land restoration. The point is the mean value of lnRR ; the bars show the 95%CI.
Fig. 3. SOC/TN storage in response to DF (a, b) and land restoration (c, d). The point is the mean value of lnRR , the bars show the 95%CI, P indicates the difference between the types of land.
Fig. 4. The changes of SOC (a) and TN (b) storage after deforestation at different sampling depth; the point is the mean value of lnRR , the bars show the mean and 95%CI.
Fig. 5. The changes of SOC (a) and TN (b) storage after land restoration at different sampling depth; the point is the mean value oflnRR , the bars show the mean and 95%CI.
Fig. 6. Linear regression results of possible influential factors affect RRSOC under Deforestation and land restoration. R is the correlation coefficient (* and ** are the significant levels of P < 0.05 and P < 0.01, respectively); n represents number of samples; BD is soil bulk density; TN and TK represent total nitrogen and total potassium, respectively; Clay, Percentage content of clay content in soil; Water is soil moisture content; Year is the time of LUCC; Slope and Altitude represent the slope and elevation of the experimental sample points, respectively; MAT, mean annual temperature; MAP, mean annual precipitation.