Comparison of intrinsic water use efficiency between different aged Pinus sylvestris var. mongolica wide windbreaks in semiarid sandy land of northern China
文献类型：期刊论文
| 作者 | Zhu, Jiaojun1,3; Yan, Qiaoling1,3; Li, Mingcai1,3; Yu, Guoqing2; Song, Lining1,3 |
| 刊名 | AGROFORESTRY SYSTEMS
 |
| 出版日期 | 2015-06-01 |
| 卷号 | 89期号:3页码:477-489 |
| ISSN号 | 0167-4366 |
| 关键词 | Wide Windbreaks Dieback Water Stress Specific Leaf Area Groundwater Level |
| DOI | 10.1007/s10457-014-9784-4 |
| 英文摘要 | Dieback of Mongolian pine (Pinus sylvestris var. mongolica) wide windbreaks often emerges 35 years after planting in agroforestry systems. Water stress is considered to be the main cause for such dieback, but there is little knowledge about how water use efficiency of trees changes with their age. We measured needle delta C-13 as a proxy for intrinsic water use efficiency (iWUE), combined with specific leaf area, leaf dry matter content, soil water content, and groundwater level in 9-, 21-, and 41-year-old pine stands in 2011. Results showed that the mean delta C-13 value of 9-year-old trees was lower by 0.66 and 0.48 aEuro degrees than that of 21- and 41-year-old trees, respectively, but the mean delta C-13 value in 21-year-old trees was higher by 0.17 aEuro degrees than that in 41-year-old trees. Soil water content for 9-year-old trees was highest. Specific leaf area for 21-year-old trees was lowest. Compared with the other two tree ages, tree roots reached groundwater levels for 41-year-old trees. These results suggested that (1) 9-year-old trees with the lowest iWUE applied a prodigal water use strategy due to higher soil moisture, (2) 21-year-old trees with the highest iWUE employed a more conservative water use strategy and experienced significant water stress because of lower soil moisture and specific leaf area, and (3) the water use strategy of 41-year-old trees was between that of 9- and 21-year-old trees, likely due to both aging and uptake of groundwater. Dieback of Mongolian pine trees at older age (e.g., more than 35 years old) might occur when the groundwater level declines suddenly in years of extremely low rainfall. |
| WOS研究方向 | Agriculture ; Forestry |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000354947500009 |
| 源URL | [http://210.72.129.5/handle/321005/122043]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Zhu, Jiaojun |
| 作者单位 | 1.Liaoning Key Lab Management Noncommercial Forests, Shenyang 110016, Peoples R China 2.Inst Wind Sand Land Improvement & Utilizat, Fuxing 123000, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110164, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Jiaojun,Yan, Qiaoling,Li, Mingcai,et al. Comparison of intrinsic water use efficiency between different aged Pinus sylvestris var. mongolica wide windbreaks in semiarid sandy land of northern China[J]. AGROFORESTRY SYSTEMS,2015,89(3):477-489. |
| APA | Zhu, Jiaojun,Yan, Qiaoling,Li, Mingcai,Yu, Guoqing,&Song, Lining.(2015).Comparison of intrinsic water use efficiency between different aged Pinus sylvestris var. mongolica wide windbreaks in semiarid sandy land of northern China.AGROFORESTRY SYSTEMS,89(3),477-489. |
| MLA | Zhu, Jiaojun,et al."Comparison of intrinsic water use efficiency between different aged Pinus sylvestris var. mongolica wide windbreaks in semiarid sandy land of northern China".AGROFORESTRY SYSTEMS 89.3(2015):477-489. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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