生态环境学报2011，Vol.20Issue(11)：1608-1613,6.
广西罗城马尾松、杉木、桉树人工林碳储量及其动态变化
Carbon storage and distribution of massion pine, Chinese fir and eucalyptus plantations at Liuzhou, Guangxi province
摘要
Abstract
The carbon content, storage and distribution in Masson pine (Pinus massoniana), Chinese Fir (Cunninghamia lanceolata) and eucalyptus (Eucalyptus sp.) plantation ecosystems in Luocheng county, Guangxi Province were studied. The results show that the carbon content (percent of dry weight) of the understory layer in all plantations at different ages ranged from 37.96%-49.03%, while the content in the litter ranged from 41.8%-49.6%. When considering the understory carbon content of all plantations, the highest value occurred in the understory vegetation of the sappling Masson pine plantation, and the litter in the 2 yr-old eucalyptus plantation displayed the lowest value. The carbon content of soil from 0-60 cm depth ranged from0.45%-2.17%, In the 0-20 cm soil depth the carbon content ranged, from highest to lowest, as follows: Chinese Fir > Masson pine > eucalyptus. The total carbon storage of Masson pine, Chinese Fir and eucalyptus plantations are 135.61, 144.30, 87.54 t-hm-2 respectively. The carbon storage within the Masson pine and eucalyptus plantation increased with age. Carbon storage of sapping and near-mature Masson pine plantation was higher than what was found in sapping and near-mature Chinese fir plantation. However, the carbon storage in middle-aged Chinese fir plantations is greater than middle-aged Masson pine plantations. The carbon storage of tree layer of Masson pine, Chinese Fir and eucalyptus plantations accounted for 43.03%, 34.44%, 22.92% of the entire stored carbon within each of the respective ecosystems respectively. The carbon stored in the understory of Masson pine, Chinese fir and eucalyptus plantations was determined to be, in order of highest to lowest value, as: eucalyptus (2.54 t·hm-2) > Chinese Fir (1.91 t·hm-2) > Masson pine (0.89 t·hm-2 ) . The carbon stored in the litter of Masson pine, Chinese fir and eucalyptus plantations accounted forl.64%, 4.56%, 1.95% of the total carbon stored in these ecosystem respectively. The carbon stored in the soil of Masson pine, Chinese Fir and eucalyptus plantations within the 0-60 cm depth are 54.06, 67.33, 41.22 t·hm-2 respectively. The 0-20 cm layer of soil was found to contribute the most to the total soil carbon storage. The carbon stored within this upper 20 cm soil layer accounted for 47.03%, 51.67%, and 42.58% of the total soil carbon stored in Masson pine, Chinese fir, and eucalyptus plantations, respectively. The carbon stored in the tree layer and soil combined accounted for the majority of the carbon stored within these three plantation systems, where as the carbon stored in the understory and litter contributed the least to the total carbon stock.关键词
马尾松/杉木/桉树/含碳率/碳储量Key words
masson pine/ Chinese fir/ eucalyptus/ carbon content/ carbon Storage分类
农业科技引用本文复制引用
陶玉华,冯金朝,马麟英,隆卫革,曹书阁..广西罗城马尾松、杉木、桉树人工林碳储量及其动态变化[J].生态环境学报,2011,20(11):1608-1613,6.基金项目
中央民族大学"985工程"项目(MUC98507-08 （）
MUC98504-14) （）
