首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Estimating realized and potential carbon storage benefits from reforestation and afforestation under climate change: a case study of the Qinghai spruce forests in the Qilian Mountains, northwestern China
Authors:Zhonglin Xu  Chuanyan Zhao  Zhaodong Feng  Fang Zhang  Hassan Sher  Chao Wang  Huanhua Peng  Ying Wang  Yang Zhao  Yao Wang  Shouzhang Peng  Xianglin Zheng
Institution:1. Key Laboratory of Oasis Ecology (Ministry of Education), College of Resource & Environmental Science, Xinjiang University, Urumqi, 830046, China
7. Key Laboratory of Oasis Ecology (Ministry of Education), College of Resource & Environmental Science, Xinjiang University, Urumqi, 830046, China
2. Key Laboratory of Arid and Grassland Agroecology (Ministry of Education), Lanzhou University, Lanzhou, 730000, China
3. Centre of Botany & Biodiversity Conservation, University of Swat, Swat, 19200, Pakistan
4. College of Earth and Environmental Science, Lanzhou University, Lanzhou, 730000, China
5. Chinese Meteorology Administration, Lanzhou Institute of Arid Meteorology, Lanzhou, 730020, China
6. Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou, 730000, China
Abstract:Greenhouse gas emission has been scientifically shown to be the primary cause of observed global climate change. The reduction of greenhouse gas levels in the atmosphere deserves international attention. Aside from strategies to reduce emissions, increasing carbon (C) storage by forests has become an alternative method to lower carbon dioxide (CO2) levels. The present study assesses the potential of C storage to decrease gas emission by restoring cleared and disturbed spruce (picea) forests in the Qilian Mountains, northwestern China. We first introduced and tested a new method for live aboveground biomass (AGB) estimation. We then used the method to define the relationship of AGB with topographic wetness index (TWI) and precipitation seasonality for total AGB estimation and quantification of the realized C storage in the live AGB of existing spruce forests. The same strategies were adopted to estimate the total AGB and the related potential C storage in the projected potential spruce forest distribution. A species distribution model was used, and the results showed that the AGB of the Qinghai spruce forests ranged between 2.30 and 4.96 Mg per plot (0.021 ha), i.e., 110 Mg ha-1 to 236 Mg ha-1). Actual total AGB was measured at 33 Tg, and C storage was 17.3 Tg in existing spruce forests. Potential total AGB and potential C storage were greater if the cleared and the potential C storage was ~50 Tg.
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号