Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s00468-017-1605-8 |
Differential hydric deficit responses of Robinia pseudoacacia and Platycladus orientalis in pure and mixed stands in northern China and the species interactions under drought | |
Wang, Lin1,2; Dai, Yongxin1; Sun, Jiazhe1; Wan, Xianchong1 | |
通讯作者 | Wan, Xianchong |
来源期刊 | TREES-STRUCTURE AND FUNCTION
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ISSN | 0931-1890 |
EISSN | 1432-2285 |
出版年 | 2017 |
卷号 | 31期号:6页码:2011-2021 |
英文摘要 | The differential responses to water deficit would be the key factors to cause black locust decline and to drive a change in the forest composition in the mixed forest. This study was conducted in arborvitae (Platycladus orientalis)-black locust (Robinia pseudoacacia) mixedwood plantations with various compositions ranging from pure black locust to pure arborvitae to mixtures of the two located in semi-arid rocky hill area in northern China. In current years, black locust tends to decline and the forest composition is changing in favor to arborvitae. A dendroecological investigation and delta C-13 measurement of tree rings were applied to assess the relationships between water relations and growth in response to water deficits. Black locust in mixed forest had smaller tree-ring growth than that in pure forest in recent years, while arborvitae trees in mixed forest had bigger tree-ring width than those in pure stand. The delta C-13 values suggested that black locust in mixed forest had severer drought stress than that in pure forest, and arborvitae showed an opposite scenario. In early growth season, the soil was the driest in pure arborvitae, followed by mixed and then black locust forest. Black locust was more sensitive to drought than arborvitae with quickly closing stomata and reducing photosynthesis. Thus, the soil water regime in mixed forest was worse than that in pure forest for black locust, and was opposite for arborvitae. As a result, black locust in mixed forest had lower stomatal conductance and photosynthesis than that in pure black locust forest, whereas arborvitae had an opposite scenario. In summary, the results suggest that the differential responses to water deficit and the species interactions would be the key factors to cause black locust decline. |
英文关键词 | Drought stress Mixed forest Species interactions Forest composition |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000414503900021 |
WOS关键词 | CARBON-ISOTOPE DISCRIMINATION ; TREE-RING ; RADIAL GROWTH ; CLIMATE-CHANGE ; POSITIVE INTERACTIONS ; BRITISH-COLUMBIA ; WATER RELATIONS ; SUMMER DROUGHT ; ABIOTIC STRESS ; SCOTS PINE |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/202723 |
作者单位 | 1.Chinese Acad Forestry, Inst New Forestry Technol, Beijing 100091, Peoples R China; 2.Shanxi Agr Univ, Coll Forestry, Taigu 030801, Shanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Lin,Dai, Yongxin,Sun, Jiazhe,et al. Differential hydric deficit responses of Robinia pseudoacacia and Platycladus orientalis in pure and mixed stands in northern China and the species interactions under drought[J],2017,31(6):2011-2021. |
APA | Wang, Lin,Dai, Yongxin,Sun, Jiazhe,&Wan, Xianchong.(2017).Differential hydric deficit responses of Robinia pseudoacacia and Platycladus orientalis in pure and mixed stands in northern China and the species interactions under drought.TREES-STRUCTURE AND FUNCTION,31(6),2011-2021. |
MLA | Wang, Lin,et al."Differential hydric deficit responses of Robinia pseudoacacia and Platycladus orientalis in pure and mixed stands in northern China and the species interactions under drought".TREES-STRUCTURE AND FUNCTION 31.6(2017):2011-2021. |
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