The important role of soil moisture in controlling autumn phenology of herbaceous plants in the Inner Mongolian steppe
文献类型：期刊论文
| 作者 | Tao, Zexing; Ge, Quansheng; Wang, Huanjiong; Dai, Junhu |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 出版日期 | 2020-12-01 |
| 页码 | 13 |
| 关键词 | autumn phenology phenological model soil moisture temperature Inner Mongolian steppe |
| ISSN号 | 1085-3278 |
| DOI | 10.1002/ldr.3827 |
| 通讯作者 | Tao, Zexing(taozx.12s@igsnrr.ac.cn) ; Dai, Junhu(daijh@igsnrr.ac.cn) |
| 英文摘要 | Autumn phenology variation in temperate grassland is a direct indicator of land degradation, and a phenology-based model has been used to simulate human-induced land degradation. It is important to reveal how environmental factors influence autumn phenology of herbaceous plants. In this study, we examined the effects of temperature, photoperiod, and soil moisture on the leaf withering date (LWD) of four herbaceous species (Xanthium sibiricum, Plantago asiatica, Iris lactea, and Taraxacum mongolicum) at 15 sites in the Inner Mongolian steppe from 1981 to 2012. Then, we developed two process-based models coupling the effects of the three factors based on an existing cold degree-days (CDD)-based model for predicting the LWD of the four species. The new models showed better accuracy than CDD model during validation. The model structure and parameters suggested that soil moisture likely influenced LWD nonlinearly and presented a multiplicative interaction with temperature and photoperiod. In addition, photoperiod had divergent effects on the accumulation of cold temperature for different species and sites. For X. sibiricum, the photoperiod only determined the start of cold temperature accumulation. Considering the carryover effect of spring phenology did not improve model performance. Our study also showed that local adaptation of plants was commonly ignored when using same parameters in model calibration with observation data from multiple sites; however, model calibrations using site-specific data were less stable, and the parameters could not be extrapolated across space. It will be necessary to establish a generalized regional model driven by both climatic and genotypic factors in future research. |
| WOS关键词 | CLIMATE-CHANGE ; LEAF SENESCENCE ; TEMPERATE ECOSYSTEMS ; TEMPORAL PATTERNS ; GREEN-UP ; CHINA ; MODELS ; PREDICTION ; RESPONSES ; CARBON |
| 资助项目 | National Key R&D Program of China[2018YFA0606102] ; National Natural Science Foundation of China[41901014] ; National Natural Science Foundation of China[41771056] ; China Postdoctoral Science Foundation[2018M640172] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000594965800001 |
| 出版者 | WILEY |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/156379]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Tao, Zexing; Dai, Junhu |
| 作者单位 | Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tao, Zexing,Ge, Quansheng,Wang, Huanjiong,et al. The important role of soil moisture in controlling autumn phenology of herbaceous plants in the Inner Mongolian steppe[J]. LAND DEGRADATION & DEVELOPMENT,2020:13. |
| APA | Tao, Zexing,Ge, Quansheng,Wang, Huanjiong,&Dai, Junhu.(2020).The important role of soil moisture in controlling autumn phenology of herbaceous plants in the Inner Mongolian steppe.LAND DEGRADATION & DEVELOPMENT,13. |
| MLA | Tao, Zexing,et al."The important role of soil moisture in controlling autumn phenology of herbaceous plants in the Inner Mongolian steppe".LAND DEGRADATION & DEVELOPMENT (2020):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
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。