| 来源类型 | Article
|
| 规范类型 | 其他
|
| DOI | 10.3390/f9030155
|
| Development of an Integrated DBH Estimation Model Based on Stand and Climatic Conditions. |
| Piao D; Kim M; Choi G-M; Moon J; Yu H; Lee W-K; Wang S; Jeon SW
|
| 发表日期 | 2018
|
| 出处 | Forests 9 (3): p. 155
|
| 出版年 | 2018
|
| 语种 | 英语
|
| 摘要 | Using Korean National Forest Inventory (NFI) data, our study developed a model to estimate stand mean diameter at breast height (DBH) reflecting the influence of site and climate factors on forest growth for the major tree species in South Korea. A DBH estimation model was developed using stand-level variables (stand age, site index and number of trees per hectare) as independent factors. The spatial autocorrelation of residuals of the model was identified using semi-variogram analysis for each tree species. Further, a residual model, in which residuals were estimated by climatic factors (mean temperature, sum temperature in the growing season and precipitation), was developed assuming that the spatial autocorrelation of residuals reflects the differences in regional climatic conditions. Linear regression analysis showed that residuals of all tree species were significantly correlated with temperature and precipitation. The DBH and residual models were integrated to estimate the current DBH under different climatic factors (temperature and precipitation) and stand-level variables. This model had high reliability (R2 = 0.74–0.79), and no obvious dependencies or patterns in residuals were noted. Our results indicated that temperature increases caused by climate change would negatively affect the DBH estimate of coniferous trees, but not of oak species. |
| 主题 | Ecosystems Services and Management (ESM)
|
| 关键词 | climate factor
diameter at breast height (DBH)
semi-variogram
residuals
national forest inventory
|
| URL | http://pure.iiasa.ac.at/id/eprint/15195/
|
| 来源智库 | International Institute for Applied Systems Analysis (Austria)
|
| 引用统计 |
|
| 资源类型 | 智库出版物
|
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/131273
|
推荐引用方式
GB/T 7714 |
Piao D,Kim M,Choi G-M,et al. Development of an Integrated DBH Estimation Model Based on Stand and Climatic Conditions.. 2018.
|
|
文件名：
|
forests-Development%20of%20an%20Integrated%20DBH%20Estimation%20Model%20Based%20on%20Stand%20and%20Climatic%20Conditions.pdf
|
|
格式：
|
Adobe PDF
|
此文件暂不支持浏览
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
