Forest Phenology under Differing Topographic Conditions: A Case Study of Changbai Mountain in Northeast China
文献类型：期刊论文
| 作者 | Jiang, Jie; Yu, Quanzhou; Mickler, Robert A. A.; Tang, Qingxin; Liang, Tianquan; Zhang, Hongli; Song, Kaishan; Wang, Shaoqiang |
| 刊名 | FORESTS
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 14期号:7页码:1466 |
| 关键词 | spatio-temporal data fusion forest phenology topographic differentiation climate change |
| ISSN号 | 1999-4907 |
| DOI | 10.3390/f14071466 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Forest phenology is sensitive to climate change, and its responses affect many land surface processes, resulting in a feedback effect on climate change. Human activities have been the main driver of climate change's long-term shifts in temperature and weather patterns. Forest phenology, understood as the timing of the annual cycles of plants, is extremely sensitive to changes in climate. Quantifying the responses of temperate forest phenology under an elevational range of topographic conditions that mimic climate change is essential for making effective adaptive forest ecosystem management decisions. Our study utilized the Google Earth Engine (GEE), gap filling, and the Savitzky-Golay (GF-SG) algorithm to develop a long-time series spatio-temporal remote sensing data fusion. The forest phenology characteristics on the north slope of Changbai Mountain were extracted and analyzed annually from 2013 to 2022. Our study found that the average start of the growing season (SOS) on the north slope of Changbai Mountain occurred between the 120th-150th day during the study period. The end of the growing season (EOS) occurred between the 270th-300th day, and the length of the growing season (LOS) ranged from the 110th-190th day. A transect from the northeast to southwest of the study area for a 10-year study period found that SOS was delayed by 39 d, the EOS advanced by 32 d, and the LOS was gradually shortened by 63 d. The forest phenology on the north slope of Changbai Mountain showed significant topographic differentiations. With an increase of 100 m in altitude, the mean SOS was delayed by 1.71 d (R-2 = 0.93, p < 0.01). There were no obvious trends in EOS variation within the study area altitude gradient. LOS decreased by 1.23 d for each 100 m increase in elevation (R-2 = 0.90, p < 0.01). Forests on steep slopes had an earlier SOS, a later EOS, and a longer LOS than forests on gentle slopes. For each degree increase in slope, SOS advanced by 0.12 d (R-2 = 0.53, p = 0.04), EOS was delayed by 0.18 d (R-2 = 0.82, p = 0.002), and the LOS increased by 0.28 d (R-2 = 0.78, p = 0.004). The slope aspect had effects on the EOS and the LOS but had no effect on the SOS. The forest EOS of the south aspect was 3.15 d later than that of the north aspect, and the LOS was 6.47 d longer. Over the 10-year study period, the phenology differences between the north and south aspects showed that the LOS difference decreased by 0.85 d, the SOS difference decreased by 0.34 d, and the EOS difference decreased by 0.53 d per year. Our study illustrates the significance of the coupling mechanism between mountain topography and forest phenology, which will assist our future understanding of the response of mountain forest phenology to climate change, and provide a scientific basis for further research on temperate forest phenology. |
| WOS关键词 | SPRING PHENOLOGY ; CLIMATE-CHANGE ; VEGETATION PHENOLOGY ; TIBETAN PLATEAU ; TEMPERATURE ; SERIES ; FEEDBACKS ; GRADIENT ; GMELINII ; GROWTH |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:001036010900001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/194584]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Institute of Geographic Sciences & Natural Resources Research, CAS 2.Chinese Academy of Sciences 3.Liaocheng University 4.Northeast Institute of Geography & Agroecology, CAS 5.North Carolina State University |
| 推荐引用方式 GB/T 7714 | Jiang, Jie,Yu, Quanzhou,Mickler, Robert A. A.,et al. Forest Phenology under Differing Topographic Conditions: A Case Study of Changbai Mountain in Northeast China[J]. FORESTS,2023,14(7):1466. |
| APA | Jiang, Jie.,Yu, Quanzhou.,Mickler, Robert A. A..,Tang, Qingxin.,Liang, Tianquan.,...&Wang, Shaoqiang.(2023).Forest Phenology under Differing Topographic Conditions: A Case Study of Changbai Mountain in Northeast China.FORESTS,14(7),1466. |
| MLA | Jiang, Jie,et al."Forest Phenology under Differing Topographic Conditions: A Case Study of Changbai Mountain in Northeast China".FORESTS 14.7(2023):1466. |
入库方式： OAI收割
来源：地理科学与资源研究所
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