Using palaeolimnological data and historical records to assess long-term dynamics of ecosystem services in typical Yangtze shallow lakes (China).
Using palaeolimnological data and historical records to assess long-term dynamics of ecosystem services in typical Yangtze shallow lakes (China).
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DOI：
10.1016/j.scitotenv.2017.01.118
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发表时间：
2017-04
期刊：
影响因子：
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通讯作者：
Min Xu;Xuhui Dong;Xiangdong Yang;Rong Wang;Ke Zhang;Yanjie Zhao;T. Davidson;E. Jeppesen
中科院分区：
文献类型：
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作者：
Min Xu;Xuhui Dong;Xiangdong Yang;Rong Wang;Ke Zhang;Yanjie Zhao;T. Davidson;E. Jeppesen
了解生态系统服务（ESs）的动态对可持续资源管理至关重要。古湖泊记录具有揭示生态系统长期变化和动态相互作用的巨大潜力，特别是支持/调节服务，这些服务不容易被文献记录量化。为了阐明长江流域两个典型湖泊（太白湖和张都湖）近100年来8个重要湖泊生态系统ESs的变化规律，我们将文献记录与古湖泊代用指标相结合。虽然所有支助服务和一些供应服务都有所增加，但这两个湖的调节服务却明显减少，特别是自1950年代以来。人类活动，包括水文干预、养分投入和土地利用变化，是观测到的变化背后的主要因素。自20世纪50年代以来，太白湖和张都湖的初级生产和生物多样性（支持服务）都有所增加（协同效应），而气候和水净化（调节服务）却显著减少（权衡），当时当地居民试图达到更高的陆地/鱼类ESs水平。从时间的角度考虑不同类型人类“改造”的长期记录、动态权衡和协同关系，我们建议在未来的湖泊管理措施中获得有价值的信息。
Understanding the dynamics of ecosystem services (ESs) is crucial for sustainable resource management. Palaeolimnological records have a great potential to reveal long-term variations and dynamic interactions in ESs, especially supporting/regulating services, which are not easily quantified by documentary records. To elucidate the variations between eight important ESs in shallow lake ecosystems, we combined documentary records with palaeolimnological proxies (covering the past 100 years) from two typical lakes (Lakes Taibai and Zhangdu) of the Yangtze River basin. Although all supporting services and some provisioning services have increased, the regulating services of the two lakes have markedly declined, in particular since the 1950s. Human activities, including hydrological intervention, nutrient input and land-use change, were identified as the main factors behind the observed variations. Both in Lake Taibai and Zhangdu, primary production and biodiversity (supporting services) have increased (synergies), whereas climate and water purification (regulating services) have significantly decreased (tradeoffs) since the 1950s when attempts were made by the local population to reach a higher land/fish ESs level. By considering long-term records, dynamic tradeoff and synergy relationship between various ESs relative to different types of human “modification” in a temporal perspective, we suggest valuable information can be gained in future lake management initiatives.