We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
甘肃省5种典型人工林生态系统固碳现状与潜力.
- Authors
程然然; 关晋宏; 张建国; 何秋月; 邓磊; 侯浩; 李国庆; 杜盛
- Abstract
Based on the data of the field investigation and laboratory and the database of the 8 th national forestry inventory, ecosystem carbon density, storage amount, and sequestration potential of tree layer were estimated for five typical plantation ecosystems (Robinia pseudoacacia, Populus spp., Pinus tabuliformis & Pinus armandii, which were grouped as one kind of ecosystems, Larix principis-rupprechtii, and Picea asperata) in Gansu Province. The results showed that the average carbon density and total carbon storage of the five typical plantation ecosystems were 139. 65 t • hm-2 and 85.78 Tg, respectively. Ecosystem carbon density varied among ecosystems. It followed the sequence of premature (250.70 t • hm-2) > mature (175.97 t • hm-2) > middle-aged (156.92 t • hm-2) > young (117.56 t • hm-2) forest. Meanwhile, carbon storage in these plantations ranked in the order of young (45.47 Tg) > middle-aged (19.54 Tg) > mature (11.84 Tg) > pre-mature (8.93 Tg) forest. Specifically, young and middle-aged plantations contributed the most and accounted for 75.9% of the total carbon storage. The realistic carbon sequestration potential (CPr) by tree layer ol the live typical plantation ecosystems in Gansu Province was estimated as 7.27 Tg. The two largest contributors to CPr were R. pseudoacacia (2.49 Tg) and Populus spp. (2.10 Tg). Young plantations (3.78 Tg) showed the largest CPr, followed by middle-aged plantations (2.04 Tg), and the value ol premature plantations (0.45 Tg) was the smallest. The maximum carbon sequestration potential (CPniax) might be up to 27.55 Tg, the CPniax with different plantations ranked in the order ol R. pseudoacacia (9.42 Tg) > L. principis-rupprechtii (6.22 Tg) ~ P. asperata (6.36 Tg) > Populus spp. (3.18 Tg) >P. tabuliformis & P. armandii (2.37 Tg). The CPmax ol young and middleaged plantations was estimated as 18.48 and 6.89 Tg, respectively, which accounted l'or 92% oi the total maximum carbon sequestration potential.
- Publication
Yingyong Shengtai Xuebao, 2017, Vol 28, Issue 4, p1112
- ISSN
1001-9332
- Publication type
Article
- DOI
10.13287/j.1001-9332.201704.022