Table 2. Radiocarbon dates and location of each site mentioned in this paper.

Site No.	Site Names	Latitude(N)	Longitude (E)	Depth of peat (cm)	14C date	error	Basal age (Cal yr BP)	References
1	Xingkaihu	45°19′	132°9′	140	1486	140	1733	16
2	Yangmu	45°36′	132°25′	145	3400	342	2325	17
3	Huling	45°49′	132°56′	70–80	3775	80	4188	18
4	Xinshugongshe	45°55′	130°34′	55–60	3991	82	4443	18
5	Shuguang	46°10′	133°03′	320–330	1600	70	1487	18
6	Dongsheng	46°29′	132°28′	140–150	6955	105	6955	18
7	Dongsheng	46°37′	132°31′	N/A	4417	307	4417	19
8	Jinlong	46°32′	132°35′	136	4027	308	4503	20
9	Qinghe1	46°35′	132°58′	85–90	1425	90	1350	18
10	Qinghe 2	46°35′	132°58′	N/A	1585	90	1470	18
11	Baoqing	46°36′	132°57′	120	1585	90	1585	17
12	Qinghe 3	46°36′	132°57′	N/A	1610	200	1560	18
13	Shenjiadian1	46°36′	130°38′	N/A	2470	80	2470	21
14	Shenjiadian2	46°36′	130°38′	195–200	2540	80	2541	17
15	Huachuan	46°37′	132°31′	N/A	4417	307	2388	17
16	Bielahonghe1	47°01′	130°43′	195	2375	167	5347	22
17	Bielahonghe2	47°31′	134°04′	168	4615	75	6465	22
18	Bielahonghe3	47°31′	134°04′	N/A	5650	95	5650	17
19	Qindeli1	47°55′	133°13′	196	9420	70	10651	22
20	Qindeli2	47°58′	133°8′	84–89	1790	200	1727	20
21	Qindeli3	48°00′	133°15′	225	9523	125	9525	17
22	Fuyuan	N/A	N/A	150	9300	100	9300	17
23	Yongfa	47°00′	130°15′	N/A	5655	215	5655	20
24	Xingshu	47°04′	133°40′	60	3990	80	3990	17
25	Tongjiang	48°05′	133°15′	80	4917	120	4917	23