How to strive for balance of coastal wind energy development with waterbird conservation
Time:2021-05-10Source: 原创 Hits:
Li, B., Yuan, X., Chen, M., Bo, S., Xia, L., Guo, Y., Zhao, S., Ma, Z.
and Wang, T., 2020. How to strive for balance of coastal wind energy
development with waterbird conservation in the important coastal
wetlands, a case study in the Chongming Islands of East China. Journal
of Cleaner Production, p.121547. (中杓鹬, 斑嘴鸭, 绿头鸭; collars and leg-loop
tags type??)
Wind farms are a cleaner alternative to fossil fuels and may mitigate
the effects of climate change. However, they have complex ecological
consequences, especially their negative effects on birds. The East China
coast is a key part of the East Asian-Australasian flyway (EAAF) for
migratory waterbirds, and numerous wind farms have been or will be built
in this region owing to high electricity demand and wind energy
resources. However, little is known regarding the effects of large-scale
wind farms of the East China coast on biodiversity conservation. The
negative effects of wind farms on waterbirds that overwinter here could
be reduced by understanding waterbird distribution and movement around
wind turbines in these areas. From 2017 to 2019, we selected the
Chongming Islands as our study area, which are one of the most important
hot spots for migratory waterbirds of the East China coast and have
sufficient wind generation potential to achieve energy sustainability,
to study how to coordinate coastal wind farm development (existing and
planned wind farms) and waterbird conservation (important waterbird
habitats and buffer zone due to characteristic of waterbird activity).
We identified four coastal natural wetlands of international importance
for waterbirds according to 16 field surveys in 2017–2018. We found that
over 63.16% species and 89.86% of waterbirds flew regularly across a
dyke in Chongming Dongtan, where the wind farms are generally located,
and used the natural intertidal wetland as a feeding ground and
artificial habitat behind the dyke as a supplementary habitat for
foraging and roosting. Additionally, with 4603 locations of 14 GPS/GSM
tracked waterbirds (seven shorebirds and seven ducks) in Chongming
Dongtan in 2018–2019, we further demonstrated that more than 60% of
waterbird locations were within a distance of 800–1300 m from the dyke,
and this distance could be defined as a buffer zone to protect
waterbirds. Finally, we found that 67 existing wind turbines adjacent to
four important coastal habitats on the Chongming Islands may influence
waterbirds based on our finding of the buffer zone for waterbird
conservation. We concluded that the settlement of wind farms should be
avoided not only in important coastal natural wetlands for waterbird
conservation but also in a proper buffer zone covering the artificial
wetlands, such as aquaculture ponds and paddy fields adjoining these
important natural wetlands.