|
|||||
|
|
| 古尔班通古特沙漠短命植物分布及其沙面稳定意义 | |
| 引用本文： | 王雪芹,蒋进,雷加强,ZHANG Weimin,QIAN Yibing.古尔班通古特沙漠短命植物分布及其沙面稳定意义[J].地理学报(英文版),2003,13(3):323-330. |
| 作者姓名： | 王雪芹 蒋进 雷加强 ZHANG Weimin QIAN Yibing |
| 作者单位： | 1. Xinjiang Institute of Ecology & Geography,CAS,Urumqi 830011,China; 2. Cold and Arid Regions of Environment and Engineering Research Institute,CAS,Lanzhou 730000,China |
| 基金项目： | The National Key Project for Basic Research No. G1999043504,National Natural Science Foundation of China,No.90202019,The "Light of West China" Project for Talent Training,CAS,No. 20032057 |
| 摘 要： | Based on systematically monitoring plants on dune ridges in the southern part of the Gurbantunggut Desert in 2002, this paper, from the angle of dune stabilization by vegetation,describes the temporal and spatial distribution patterns of ephemeral plants on isolated sand dunes,analyses the natural invasion processes of ephemeral plants on human-disturbed sand surface and expounds the importance of ephemeral plants in stabilizing sand dune surface. A total of 45 plant species were identified in the study area, 29 of which are ephemeral plants. Ephemeral plants sprouted in early April and completed their life-circle within about two months. Just as aeolian sand activities came to the strongest stage from April to June in desert regions of northern Xinjiang, the total coverage of trees, shrubs and herbs of long vegetational period on most dune ridges was less than 10%, while the mean coverage of ephemeral plants reached 13.9% in April, 40.2% in May and 14.1% in June. Therefore ephemeral plants acted as the major contributor to dune surface stabilization in the Gurbantunggut Desert.Investigations of vegetation restoration on engineering-disturbed dune surface show that ephemeral plants first recolonized the disturbed dune surface. |
| 关 键 词： | 短生植物 时间分布 空间分布 沙丘表面稳定性 沙漠 植物分布 |
| 收稿时间： | 22 October 2002 |
| 修稿时间： | 27 March 2003 |
Distribution of ephemeral plants and their significance in dune stabilization in Gurbantunggut Desert |
|
| Wang?Xueqin,Jiang?Jin,Lei?Jiaqiang,Zhang?Weimin,Qian?Yibing.Distribution of ephemeral plants and their significance in dune stabilization in Gurbantunggut Desert[J].Journal of Geographical Sciences,2003,13(3):323-330. | |
| Authors: | Wang Xueqin Jiang Jin Lei Jiaqiang Zhang Weimin Qian Yibing |
| Institution: | 1. Xinjiang Institute of Ecology & Geography, CAS, Urumqi 830011, China;Cold and Arid Regions of Environment and Engineering Research Institute, CAS, Lanzhou 730000, China 2. Xinjiang Institute of Ecology & Geography, CAS, Urumqi 830011, China 3. Cold and Arid Regions of Environment and Engineering Research Institute, CAS, Lanzhou 730000, China |
| Abstract: | Based on systematically monitoring plants on dune ridges in the southern part of the Gurbantunggut Desert in 2002, this paper, from the angle of dune stabilization by vegetation, describes the temporal and spatial distribution patterns of ephemeral plants on isolated sand dunes, analyses the natural invasion processes of ephemeral plants on human-disturbed sand surface and expounds the importance of ephemeral plants in stabilizing sand dune surface. A total of 45 plant species were identified in the study area, 29 of which are ephemeral plants. Ephemeral plants sprouted in early April and completed their life-circle within about two months. Just as aeolian sand activities came to the strongest stage from April to June in desert regions of northern Xinjiang, the total coverage of trees, shrubs and herbs of long vegetational period on most dune ridges was less than 10%, while the mean coverage of ephemeral plants reached 13.9% in April, 40.2% in May and 14.1% in June. Therefore ephemeral plants acted as the major contributor to dune surface stabilization in the Gurbantunggut Desert. Investigations of vegetation restoration on engineering-disturbed dune surface show that ephemeral plants first recolonized the disturbed dune surface. |
| Keywords: | ephemeral plant temporal and spatial distribution dune surface stabilization Gurbantunggut Desert |
| 本文献已被 CNKI 万方数据 SpringerLink 等数据库收录！ | |
| 点击此处可从《地理学报(英文版)》浏览原始摘要信息 | |
| 点击此处可从《地理学报(英文版)》下载免费的PDF全文 | |