...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Conservation Biology >Rehabilitating China's Largest Inland River
【24h】

Rehabilitating China's Largest Inland River

机译：修复中国最大的内河

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Wetlands are particularly important for conserving China's biodiversity but riparian wetlands in the Tarim River basin in western China have been reduced by 46% during the last 3 decades. The world's largest habitat for Populus euphratica, which is in the Tarim River basin, significantly shrank. To protect and restore the deteriorated ecosystems along the Tarim River and its associated wetlands, China's government initiated a multimillion dollar river restoration project to release water from upper dams to the dried-up lower reaches of the Tarim River starting in 2000. We monitored the responses of groundwater and vegetation to water recharge in the lower reaches of the river from 2000 to 2006 by establishing nine 1000-m-long transects perpendicular to the river at intervals of 20-45 km along the 320-km river course below the Daxihaizi Reservoir, the source of water conveyance, to Lake Taitema, the terminus of the Tarim River. Water recharges from the Daxihaizi Reservoir to the lower reaches of the Tarim River significantly increased groundwater levels and vegetation coverage at all monitoring sites along the river. The mean canopy size of the endangered plant species P. euphratica doubled after 6 years of water recharge. Some rare migrating birds returned to rest on the restored wetlands in summer along the lower reaches of the Tarim River. The biggest challenge facing decision makers, however, is to balance water allocation and water rights between agricultural and natural ecosystems in a sustainable way. A large number of inhabitants in the Tarim Basin depend on these limited water resources for a living. At the same time, the endangered ecosystems need to be protected. Given the ecological, socioeconomic, and sociopolitical realities in the Tarim Basin, adaptive water policies and strategies are needed for water allocation in these areas of limited water resources.
机译：湿地对于保护中国的生物多样性尤其重要，但是在过去的30年中，中国西部塔里木河流域的河岸湿地减少了46％。塔里木河流域的胡杨属植物的世界最大栖息地明显萎缩。为了保护和恢复塔里木河及其相关湿地退化的生态系统，中国政府启动了一项耗资数百万美元的河水修复项目，从2000年开始将水从大坝释放到塔里木河干dried的下游。我们监测了应对措施通过在大溪海子水库下面320公里的河道上以20-45公里的间隔建立垂直于河流的9个1000米长的横断面，在2000年至2006年间对河流下游的地下水和植被进行补给，是塔里木河终点站泰特玛湖的水源。从大溪海子水库到塔里木河下游的补给水大大增加了沿河所有监测点的地下水位和植被覆盖率。补给水6年后，濒危植物胡杨假单胞菌的平均冠层大小增加了一倍。夏天，一些稀有的迁徙鸟类沿着塔里木河下游返回到恢复的湿地上休息。然而，决策者面临的最大挑战是以可持续的方式平衡农业与自然生态系统之间的水分配和水权。塔里木盆地的大量居民依靠这些有限的水资源谋生。同时，需要保护濒临灭绝的生态系统。考虑到塔里木盆地的生态，社会经济和社会政治现实，在这些水资源有限的地区，需要有自适应的水政策和战略来分配水。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号