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題名 | Carbon Storage and Density of Forest Ecosystems in Heilongjiang Province, China=中國黑龍江省森林生態系統碳儲量估算 |
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作者 | 王新闖; 王世東; 于大炮; 周莉; 代力民; Wang, Xin-chuang; Wang, Shi-dong; Yu, Da-pao; Zhou, Li; Dai, Li-min; |
期刊 | 臺灣林業科學 |
出版日期 | 20120900 |
卷期 | 27:3 2012.09[民101.09] |
頁次 | 頁309-318 |
分類號 | 436.12 |
語文 | eng |
關鍵詞 | 森林生態系統; 碳儲量; 碳密度; 估算方法; Forest ecosystem; Carbon storage; Carbon density; Estimation method; |
中文摘要 | 利用森林資源二類調查匯總資料和標準地實測資料,研究了中國黑龍江省森林生態系統的碳密度、碳儲量及其組分和分配特徵。結果表明:黑龍江省森林生態系統碳儲量為4125.002 Tg C,其中喬木層、灌草層、枯落物層和土壤層碳儲量分別為800.965、11.705、106.568和3205.764 Tg C,分別占總碳量的19.4、0.3、2.6和77.7%。黑龍江省森林生態系統碳密度為215.816 Mg C ha-1,各層碳密度的大小順序為土壤層(167.722 Mg C ha-2) > 喬木層(41.906 Mg C ha-1) > 枯落物層(5.576 Mg C ha-1)> 灌草層(0.612 Mg C ha-1)。不同類型森林生態系統的碳儲量介於37.874~1306.63 Tg C,碳密度在167.687~256.874 Mg C ha-1之間,各林型分配特徵表現為土壤層最大、灌草層最小。結果說明土壤是森林生態系統碳儲量主要組成部分。另外,森林碳儲量估算方法及所用的數據對森林碳儲量估算結果有重大影響,估算時應在獲取足夠數據的基礎上採取盡可能穩健的方法。黑龍江省森林中中齡林分比重大,若對現有森林加以更好的管理,可以增加其碳吸存潛力。 |
英文摘要 | Accurately estimating carbon storage for forest ecosystems is important for understanding the role of forests in global warming and also in supporting decision-making processes in forest management. Using forest inventory data in combination with field data, we explored characteristics of carbon storage, density, and distribution for different forest ecosystems and their components in Heilongjiang Province, Northeast China. Results showed that total carbon storage was 4125.002 Tg C. The soil layer accounted for the most storage with 3205.764 Tg C or 77.7% of the total. This was followed by the canopy, litter, and shrub-grass layers with 800.965 (19.4%), 106.568 (2.6%), and 11.705 Tg C (0.3%), respectively. The average carbon density of forest ecosystems was 215.816 Mg C ha^(-1), with the soil layer (167.722 Mg C ha^(-1)) the densest, followed by the canopy layer (41.906 Mg C ha^(-1)), litter (5.576 Mg C ha^(-1)), and shrub layers (0.612 Mg C ha^(-1)). Carbon storage in different forest ecosystems varied 37.87~1306.63 Tg C, while C density ranged 167.68~256.87 Mg C ha^(-1), with the highest and lowest values observed in the soil and shrub-grass layers, respectively. That implies that the soil is the main body for forest carbon storage. The methods and data used for forest carbon storage estimation obviously affected results of the estimates. Rational methods should be adopted based on obtaining sufficient data for estimates. Middle-aged forests accounted for a greater proportion of forests in the province than forests in other age classes, and proper management of forests could increase the carbon sequestration of forest ecosystems. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。