Table 5. Projected biophysical vulnerabilities to proposed hydropower development based on modeled reservoirs of the Nu River, China.


Dam site Change in residence time (%) Absolute change in residence time (days)† Reservoir storage volume (106 m³) Reservoir depth (m) Distance to active faults (km) Seismicity index Conservation area inundated (km²)
Min Max Min Max Min Max Min Max Min Max Min Max
Maji 13,430 24,376 14 55.1 1552 6075 300 1 1 0.3 1 28 71
Lumadeng 2632 17,350 0.2 3.4 22 397 165 1 3 0.0007 0.04 3 11
Yabiluo 7741 13,319 1 3.4 127 427 133 1 1 0.009 0.03 5 9
Lushui 10,526 31,962 1.6 8.8 206 1143 175 1 1 0.01 0.1 7 19
Minimum 2632 13,319 0.2 3.4 22 397 133 1 1 0.0007 0.03 3 9
Maximum 13,430 31,962 14 55.1 1552 6075 300 1 3 0.3 1 28 71
†It is important to note that these time scales are skewed by the volume of the reservoir. That is, a 0.15-yr change in residence time does not directly represent 32,000% change. Maji, with the largest reservoir volume, has the greatest absolute time change (0.15 yr), whereas Lushui has the greatest percentage change (32,000%). Lushui’s absolute change is 0.024 yr.