Dynamic response of the vegetation carbon storage in the sanjiang plain to changes in land use/cover and climate

Heritage Science

Table 1 Statistics of area change for different land use/cover types from 2001 to 2015 (km²)

Area	Cultivated land	Forest land	Grassland	Water area	Construction land	Unused land	2001 total area	Transferred-out area
Cultivated land	47,622.8	1875.8	680.7	599.3	782.4	852.7	52,413.8	4790.9
Forest land	4407.5	29,167.7	573.8	583.8	74.3	1134.7	35,941.8	6774.1
Grassland	1218.1	1184.2	345.9	154.3	53.2	1267.9	4223.6	3877.7
Water area	557.8	78.9	72.3	3115.6	18.9	1360.6	5204.0	2088.4
Construction land	507.6	36.6	12.6	7.5	1528.0	20.8	2113.2	585.2
Unused land	4393.7	209.1	397.3	569.6	13.6	3167.7	8751.0	5583.3
2015 total area	58,707.6	32,552.3	2082.6	5030.1	2470.4	7804.4	108,647.3	–
Transferred-in area	11,084.8	3384.6	1736.7	1914.5	942.4	4636.7	–	–
Area change	6293.9	− 3389.5	− 2141.0	− 173.9	357.2	− 946.6	–	–

The transferred-out area of a land use/cover type is the difference between the total area of this land use/cover type in 2001 and the area of land that has not been converted. Meanwhile, the transferred-in area is the difference between the total area of this land use/cover type in 2005 and the area of land that has not been converted. The area change is the difference between the total area in 2015 and that in 2001. The data in bold indicate the area of a certain land use/cover type that did not undergo conversion from 2001 to 2015