| Effect of desert shrubs on fine-scale spatial patterns of understory vegetation in a dry-land | |
| Zhang, Gefei1; Zhao, Liwen1; Yang, Qiyue1; Zhao, Wenzhi1; Wang, Xiaofen2 | |
| 刊名 | PLANT ECOLOGY
 |
| 2016-09-01 | |
| 卷号 | 217期号:9页码:1141-1155 |
| 关键词 | Competition Arid land Facilitation Shrub-herb interaction Spatial pattern Vegetation patch |
| ISSN号 | 1385-0237 |
| DOI | 10.1007/s11258-016-0639-0 |
| 通讯作者 | Zhao, Wenzhi(zhaowzh@lzb.ac.cn) |
| 英文摘要 | In arid and semiarid ecosystems, shrubs usually play an important role in determining vegetation pattern and landscape diversity. By exerting multiple effects on microhabitat, shrubs can modulate the performances, species assemblages, and spatial patterns of their understory plants. Both positive and negative interactions act simultaneously, and the balance between them shifts at different spatial locations. To better understand shrub-herb interaction and its possible mechanisms, we chose three common shrub species in a dry-land of Hexi desert region and examine their effects on microhabitat and understory vegetation among different locations. Results showed that the understory vegetation can benefit from the presence of Calligonum mongolicum, as a result of modified drought stresses, increased soil nutrients and more available seeds. However, understory vegetation exhibited better performances at the peripheral location of Nitraria sphaerocarpa patches, which can be explained by the balance between resources improvement and seeds limitation. It has been also found that the higher salt contents (e.g., Na+, K+, Cl-, and SO42-) on vegetation patches beneath Haloxylon ammodendron may interfere with herbaceous performances and thus modified their spatial pattern. Our study revealed that the multiple effects of shrubs on microhabitat are species specific and at a fine scale, which may result in various fine-scale spatial patterns of vegetation in response to different shrub species. |
| 收录类别 | SCI |
| WOS关键词 | PLANT-COMMUNITIES ; POSITIVE INTERACTIONS ; LANDSCAPE MODULATORS ; BIOTIC INTERACTIONS ; SEMIARID LANDSCAPE ; CHIHUAHUAN DESERT ; SOUTH-AUSTRALIA ; SOIL-MOISTURE ; CENTRAL CHILE ; ARID LANDS |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology ; Forestry |
| WOS类目 | Plant Sciences ; Ecology ; Forestry |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000385197100008 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2557534 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, Wenzhi |
| 作者单位 | 1.Chinese Acad Sci, Linze Inland River Basin Res Stn, Cold & Arid Reg Environm & Engn Res, Lanzhou 730000, Peoples R China 2.Gansu Agr Univ, Pratacultural Coll, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Gefei,Zhao, Liwen,Yang, Qiyue,et al. Effect of desert shrubs on fine-scale spatial patterns of understory vegetation in a dry-land[J]. PLANT ECOLOGY,2016,217(9):1141-1155. |
| APA | Zhang, Gefei,Zhao, Liwen,Yang, Qiyue,Zhao, Wenzhi,&Wang, Xiaofen.(2016).Effect of desert shrubs on fine-scale spatial patterns of understory vegetation in a dry-land.PLANT ECOLOGY,217(9),1141-1155. |
| MLA | Zhang, Gefei,et al."Effect of desert shrubs on fine-scale spatial patterns of understory vegetation in a dry-land".PLANT ECOLOGY 217.9(2016):1141-1155. |
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