Research on biomass and carbon storage of Picea schrenkiana var. tianshanica community in Central Tianshan Mountain, Xinjiang

20 tree plots, 60 shrub plots, 100 grass plots and 100 litter plots were established in Central Tianshan Mountain to study the biomass and carbon storage of P. schrenkiana var. tianshanica - A. millefolium community, P. schrenkiana var. tianshanica - S. pohuashanensis community and P. schrenkiana var. tianshanica - S. pseudosabina community. Results showed that: (1) Biomass of above ground and below ground of P. schrenkiana var. tianshanica made up about 85.27 % and 14.73 % of the totals, respectively. Biomass of stems, branches and leaves made up 52.99 %, 29.16 % and 13.55 % of the totals, respectively. (2) Total biomass of P. schrenkiana var. tianshanica - A. millefolium, P. schrenkiana var. tianshanica - S. pohuashanensis and P. schrenkiana var. tianshanica - S. pseudosabina community was 259.94 t·hm
^-2
, 210.97 t·hm
^-2
and 91.39 t·hm
^-2
, respectively. Biomass of tree layers of three communities above mentioned was 248.1 t·hm
^-2
, 194.3 t·hm
^-2
and 72.1 t·hm
^-2
, respectively. Biomass of shrub layers of three communities above mentioned was 0.2 t·hm
^-2
, 9.9 t·hm
^-2
and 17.1 t·hm
^-2
, respectively. Biomass of herbage layers was 0.18 t·hm
^-2
, 0.29 t·hm
^-2
and 0.28 t·hm
^-2
, respectively. Biomass of litter layers was 11.48 t·hm
^-2
, 6.54 t·hm
^-2
and 1.92 t·hm
^-2
, respectively. (3) Carbon storage of three communities above mentioned was 130.87 t·hm
^-2
, 106.00 t·hm
^-2
and 45.83 t·hm
^-2
, respectively. Carbon storage of tree layers of three communities above mentioned was 124.03 t·hm
^-2
, 97.14 t·hm
^-2
and 36.03 t·hm
^-2
, respectively. Carbon storage of shrub layers was 0.11 t·hm
^-2
, 4.94 t·hm
^-2
and 8.56 t·hm
^-2
. Carbon storage of herbage layers was 0.08 t·hm
^-2
, 0.13 t·hm
^-2
and 0.13 t·hm
^-2
, respectively. Carbon storage of litter layers was 6.66 t·hm
^-2
, 3.79 t·hm
^-2
and 1.11 t·hm
^-2
, respectively.