Response of plant physiological parameters to soil water availability during prolonged drought is affected by soil texture
文献类型：期刊论文
| 作者 | Huang, Laiming1,2; Zhao, Wen1,2; Shao, Ming'an1,2 |
| 刊名 | JOURNAL OF ARID LAND
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 13期号:7页码:688-698 |
| 关键词 | plant available soil water content drought stress soil water deficit sustainable vegetation restoration sandy soil loamy soil Loess Plateau |
| ISSN号 | 1674-6767 |
| DOI | 10.1007/s40333-021-0075-4 |
| 通讯作者 | Shao, Ming'an(shaoma@igsnrr.ac.cn) |
| 英文摘要 | Soil water deficit is increasingly threatening the sustainable vegetation restoration and ecological construction on the Loess Plateau of China due to the climate warming and human activities. To determine the response thresholds of Amygdalus pedunculata (AP) and Salix psammophila (SP) to soil water availability under different textural soils, we measured the changes in net photosynthetic rate (P-n), stomatal conductance (G(s)), intercellular CO2 concentration (C-i), leaf water potential (psi(w)), water use efficiency (WUE) and daily transpiration rate (T-d) of the two plant species during soil water content (SWC) decreased from 100% field capacity (FC) to 20% FC in the sandy and loamy soils on the Loess Plateau in the growing season from June to August in 2018. Results showed that P-n, G(s), WUE and T-d of AP and SP remained relatively constant at the beginning of soil water deficit but decreased rapidly as plant available soil water content (PASWC) fell below the threshold values in both the sandy and loamy soils. The PASWC thresholds corresponding to P-n, G(s) and C-i of AP in the loamy soil (0.61, 0.62 and 0.70, respectively) were lower than those in the sandy soil (0.70, 0.63 and 0.75, respectively), whereas the PASWC thresholds corresponding to P-n, G(s) and C-i of SP in the loamy soil (0.63, 0.68 and 0.78, respectively) were higher than those in the sandy soil (0.58, 0.62 and 0.66, respectively). In addition, the PASWC thresholds in relation to T-d and WUE of AP (0.60 and 0.58, respectively) and SP (0.62 and 0.60, respectively) in the loamy soil were higher than the corresponding PASWC thresholds of AP (0.58 and 0.52, respectively) and SP (0.55 and 0.56, respectively) in the sandy soil. Furthermore, the PASWC thresholds for the instantaneous gas exchange parameters (e.g., P-n and G(s)) at the transient scale were higher than the thresholds for the parameters (e.g., T-d) at the daily scale. Our study demonstrates that different plant species and/or different physiological parameters exhibit different thresholds of PASWC and that the thresholds are affected by soil texture. The result can provide guidance for the rational allocation and sustainable management of reforestation species under different soil conditions in the loess regions. |
| WOS关键词 | TRANSPIRATION RESPONSE ; LEAF EXPANSION ; LOESS PLATEAU ; THRESHOLDS ; STRESS ; CARBON ; CONDUCTANCE ; EFFICIENCY ; MOISTURE ; DEFICIT |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000685300400003 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/164581]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Shao, Ming'an |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Laiming,Zhao, Wen,Shao, Ming'an. Response of plant physiological parameters to soil water availability during prolonged drought is affected by soil texture[J]. JOURNAL OF ARID LAND,2021,13(7):688-698. |
| APA | Huang, Laiming,Zhao, Wen,&Shao, Ming'an.(2021).Response of plant physiological parameters to soil water availability during prolonged drought is affected by soil texture.JOURNAL OF ARID LAND,13(7),688-698. |
| MLA | Huang, Laiming,et al."Response of plant physiological parameters to soil water availability during prolonged drought is affected by soil texture".JOURNAL OF ARID LAND 13.7(2021):688-698. |
入库方式： OAI收割
来源：地理科学与资源研究所
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