| Expansion of phragmites australis in the liaohe delta, north-east china | |
| Ji, Y. H.1,2; Zhou, G. S.1; Lv, G. H.3; Zhao, X. L.3; Jia, Q. Y.3 | |
| 刊名 | Weed research
 |
| 2009-12-01 | |
| 卷号 | 49期号:6页码:613-620 |
| 关键词 | Common reed Aquatic weed Invasive species Irrigation method Soil salinity Wetland |
| ISSN号 | 0043-1737 |
| DOI | 10.1111/j.1365-3180.2009.00727.x |
| 通讯作者 | Zhou, g. s.(gszhou@ibcas.ac.cn) |
| 英文摘要 | P>based on satellite images and historical vegetation maps, phragmites australis (common reed) in the liaohe delta, in north-east china, has expanded from 78 078 ha in 1984 to 91 262 ha in 2006, averaging over 600 ha year-1. this study also attempted to elucidate the reason for this expansion, using both historical documents and field surveys. the results suggested that the expansion of p. australis was driven mainly by human activities. freshwater irrigation reduced soil salinity; irrigation of land blocks divided by canals and ditches (square-land irrigation) maintained optimal temperature, water and oxygen for the growth of p. australis; deep freshwater irrigation and seawater irrigation eliminated some weeds; combined irrigation and burning eliminated an insect pest. these examples in the liaohe delta showed that water, salinity, oxygen, temperature and insect pests were important ecological factors that affected the growth of p. australis. by harmonising these ecological factors, optimal conditions were created for the natural expansion of p. australis and promoted the formation of monospecific stands of p. australis. |
| WOS关键词 | SALT MARSHES ; EXTREME FLOOD ; REED ; WETLANDS ; INDICATORS ; RESPONSES ; SALINITY ; DECLINE ; PLANTS ; ACIDS |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS类目 | Agronomy ; Plant Sciences |
| 语种 | 英语 |
| 出版者 | WILEY-BLACKWELL PUBLISHING, INC |
| WOS记录号 | WOS:000271714700008 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2394564 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhou, G. S. |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Chinese Acad Sci, Grad Univ, Coll Earth Sci, Beijing 100093, Peoples R China 3.China Meteorol Adm, Inst Atmospher Environm, Shenyang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ji, Y. H.,Zhou, G. S.,Lv, G. H.,et al. Expansion of phragmites australis in the liaohe delta, north-east china[J]. Weed research,2009,49(6):613-620. |
| APA | Ji, Y. H.,Zhou, G. S.,Lv, G. H.,Zhao, X. L.,&Jia, Q. Y..(2009).Expansion of phragmites australis in the liaohe delta, north-east china.Weed research,49(6),613-620. |
| MLA | Ji, Y. H.,et al."Expansion of phragmites australis in the liaohe delta, north-east china".Weed research 49.6(2009):613-620. |
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