Environmental changes after ecological water conveyance in the lower reaches of Heihe River,northwest China |
| |
Authors: | Qiaoling Guo Qi Feng Jianlin Li |
| |
Institution: | (1) Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, No. 260, West Donggang Road, 730000 Lanzhou, China;(2) Institute of Resources and Environment, Henan Polytechnic University, No. 2001, Century Avenue, 454000 Jiaozuo, China |
| |
Abstract: | This paper analyzed the dynamic change of the groundwater level by 6 years’ monitoring in field monitoring and the change
of vegetation by the field survey and satellite remote sensing after watering in the lower reaches of Heihe River. The findings
indicated: (1) the groundwater level elevation and the plant growth are closely related to the volume and the duration of
watering. In general, groundwater level elevates dramatically and plants are growing much more vigorously after watering;
(2) Watering incidence on groundwater keeps extending with the watering times increasing; (3) Plants grew rapidly in 100–400 m
away from the water channel after watering. Watering incidence on vegetation reached 1,000 m; (4) In terms of the function
and structure of ecosystem after watering in the lower reaches of Heihe River, the ecological water conveyance does not still
reach the goal of ecological restoration at a large spatial scale at present. In addition, in order to solve fundamentally
the problem of ecological environment worsens in the lower reaches of Heihe River, some suggestions and countermeasures are
put forward. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|