Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3724/SP.J.1227.2011.00075 |
Limitations on the recruitment of the rare sand shrubby legume Eremosparton songoricum (Fabaceae) in Gurbantunggut Desert, China | |
Zhang, DaoYuan1,2; Liu, HuiLiang1,2,3; Shi, Xiang4; Wang, JianCheng1,2,3; Zhang, YongKuan1,2,3 | |
通讯作者 | Zhang, DaoYuan |
来源期刊 | JOURNAL OF ARID LAND |
ISSN | 1674-6767 |
出版年 | 2011 |
卷号 | 3期号:2页码:75-84 |
英文摘要 | Eremosparton songoricum, a rare and endemic sand dune plant, appears to be experiencing recruitment failure. The structure of five populations from the Gurbantunggut Desert, China, was investigated for recruitment patterns, and two of them were examined for flowering, pollination and seed germination limits on regeneration. The results showed that total 150 seedlings only occurred on line transects in riverside Dure population, but they all died half a month later; no seedlings occurred in other four hinterland desert populations indicating recruitment was a failure at all populations although flowers were plentiful. Reproductive success depends on pollinators. Nectar is ’reward’ for pollinators, with 0.06 mu L-0.12 mu L and 0.15 mu L-0.35 mu L per flower in Dure and Kabu populations, respectively, in continuously two secreting days. Spontaneous self pollination is rare with nearly zero fruit production. Geitonogamous self pollination is predominant with 14.47% fruit set. Seed mass in the riverside Dure population was significantly greater than that in other hinterland desert populations. Consequently, the Dure population exhibited a significantly higher germination rate (about 90%) than those in other populations (about 30%). Results suggested that recruitment failure of E. songoricum is not due to flower shortage, pollination limitation, or poor seed germination but environmental pressure and/or human disturbance. |
英文关键词 | seedling recruitment sand dunes regeneration population structure pollination ecology |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000293496100001 |
WOS关键词 | SEED-GERMINATION ; PLANTS ; POPULATIONS ; POLLINATION ; SURFACE ; BURIAL ; CONSERVATION ; MICROSITE ; DISPERSAL ; DYNAMICS |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | 中国科学院新疆生态与地理研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/168954 |
作者单位 | 1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Biogeog & Bioresource Arid Land, Urumqi 830011, Peoples R China; 2.Chinese Acad Sci, Turpan Eremophytes Bot Garden, Turpan 838008, Peoples R China; 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; 4.Shihezi Univ, Coll Agr, Shihezi 832000, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, DaoYuan,Liu, HuiLiang,Shi, Xiang,et al. Limitations on the recruitment of the rare sand shrubby legume Eremosparton songoricum (Fabaceae) in Gurbantunggut Desert, China[J]. 中国科学院新疆生态与地理研究所,2011,3(2):75-84. |
APA | Zhang, DaoYuan,Liu, HuiLiang,Shi, Xiang,Wang, JianCheng,&Zhang, YongKuan.(2011).Limitations on the recruitment of the rare sand shrubby legume Eremosparton songoricum (Fabaceae) in Gurbantunggut Desert, China.JOURNAL OF ARID LAND,3(2),75-84. |
MLA | Zhang, DaoYuan,et al."Limitations on the recruitment of the rare sand shrubby legume Eremosparton songoricum (Fabaceae) in Gurbantunggut Desert, China".JOURNAL OF ARID LAND 3.2(2011):75-84. |
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