Carbon sequestration in a bamboo plantation:a case study in a Mediterranean area  

作　　者：Tommaso Chiti Emanuele Blasi Maria Vincenza Chiriaco 

机构地区：[1]Department for Innovation in Biological,Agro-Food and Forest Systems(DIBAF),University of Tuscia,Via San C.De Lellis snc,01100 Viterbo,Italy [2]Foundation Euro-Mediterranean Center on Climate Change(CMCC),Division on Climate Change Impacts on Agriculture,Forests and Ecosystem Services(IAFES),Via Garbini,51,01100 Viterbo,Italy

出　　处：《Journal of Forestry Research》2024年第3期231-238,共8页林业研究（英文版）

基　　金：supported by the “Project funded by the European Union-Next Generation EU”

摘　　要：In the Mediterranean region,despite bamboo being an alien species that can seriously alter plant and ani-mal biocoenosis,the area occupied by bamboo plantations continues to increase,especially for the purpose to seques-ter carbon(C).However,the C dynamics in the soil-plant system when bamboo is grown outside its native area are poorly understood.Here we investigated the C mitigation potential of the fast-growing Moso bamboo(Phyllostachys edulis)introduced in Italy for climate-change mitigation.We analyzed aboveground(AGB)and belowground(as root/shoot ratio)biomass,litter and soil organic C(SOC)at O-15-and 15-30-cm depths in a 4-year-old bamboo plantation in comparison with the former annual cropland on which the bamboo was established.To have an idea of the maximum C stored at an ecosystem level,a natural forest adjacent the two sites was also considered.In the plantation,C accumulation as AGB was stimulated,with 14.8±3.1 Mg C ha^(-1) stored in 3 years;because thinning was done to remove culms from the first year,the mean sequestration rate was 4.9 Mg C ha^(-1) a^(-1).The sequestration rates were high but comparable to other fast-growing tree species in Italy(e.g.,Pinus nigra).SOC was significantly higher in the bamboo plantation than in the cropland only at the 0-15 cm depth,but SOC stock did not differ.Possibly 4 years were not enough time for a clear increase in SOC,or the high nutrient uptake by bamboos might have depleted the soil nutrients,thus inhibiting the soil organic matter formation by bacteria.In comparison,the natural forest had significantly higher C levels in all the pools.For C dynamics at an ecosystem level,the bamboo plantation on the former annual cropland led to substantial C removal from the atmosphere(about 12 Mg C ha^(-1) a^(-1)).However,despite the promising C sequestration rates by bamboo,its introduction should be carefully considered due to potential ecological problems caused by this species in overexploited environments such as the Mediterranean area.

关 键 词：Carbon sequestration Climate change mitigation Mediterranean area Moso bamboo Soil organic carbon 

分 类 号：S718.55[农业科学—林学]