Changes in Glaciers and Glacial Lakes and the Identification of Dangerous Glacial Lakes in the Pumqu River Basin, Xizang (Tibet)

Table 1

Summary of glacier inventories in the Pumqu river basin for the 1970s, 2001, and 2013 periods.

Subbasin	Number of glaciers			Areas of glaciers (km^2)			Changing ratio of area (%)		Ice reserve (km^3)
	1970s	2001	2013	1970s	2001	2013	1970s–2001	1970s–2013	1970s	2001	2013
5o193	358	333	314	689.05	654.47	545.02	−5.02	−20.90	78.52	74.73	55.32
5o194	110	113	112	294.09	281.88	279.66	−4.15	−4.91	32.50	29.01	27.25
5o196	58	37	18	13.37	4.20	1.99	−68.59	−85.12	0.43	0.09	0.04
5o197	226	222	214	280.85	259.48	252.57	−7.61	−10.07	21.23	19.72	18.21
5o198	247	195	181	184.48	130.57	104.16	−29.22	−43.54	10.27	7.32	5.24
Total	999	900	839	1461.84	1330.60	1183.40	−8.98	−19.05	142.95	130.87	106.06