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What are the environmental & biological factors conditioning current & historic changes in the aquatic plant communities ...

环保有哪些

基本信息

批准号：
2061794
负责人：
金额：
--
依托单位：
Queen Mary University of London
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2018
资助国家：
英国
起止时间：
2018 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2061794
关键词：
What environmental biological factors conditioning

项目摘要

Title: What are the environmental and biological factors conditioning current and historic changes in the aquatic plant communities of upland waterbodies in the United Kingdom?Summary: Freshwater ecosystems and the biodiversity that they contain are some of the most threatened on the planet. The UK Upland (formerly Acid) Waters Monitoring Network was established in 1988 by the UK Government to monitor the effects of emission control legislation on the water chemistry and biodiversity of 22 lakes and streams across the UK. Aquatic plants are a key component of freshwater biodiversity, and detailed records spanning 30 years have been collected. To date, however, no systematic analysis of the aquatic plant data has been performed.This novel project aims to (i) investigate the drivers of changes in aquatic plant diversity in upland freshwaters, and (ii) determine how these changes impact aquatic ecosystem functioning. Drivers to be considered include pollutants (e.g. atmospheric deposition of sulphur and nitrogen), climate-related changes in maximum temperatures, hydrology, flow and storminess, hydromorphology and additionally the changing light climate/ice cover environment in lakes.The third aim (iii) is to examine the preservation and scientific potential of plant eDNA in lake sediments for reconstructing past aquatic plant assemblages. Plant eDNA and where possible macrofossil and pollen data from sediment cores will be compared with three-decades of historic biomonitoring archives of plant abundance and distribution records.

职务名称：什么是环境和生物因素调节当前和历史的变化，在英国高地水体的水生植物群落？淡水生态系统及其所包含的生物多样性是地球上最受威胁的生态系统之一。英国高地（原酸性）沃茨监测网络由英国政府于1988年建立，以监测排放控制立法对英国22个湖泊和溪流的水化学和生物多样性的影响。水生植物是淡水生物多样性的重要组成部分，已经收集了30年的详细记录。然而，迄今为止，还没有系统的分析水生植物的数据已经performed.This新项目的目的是（i）调查的水生植物多样性在高地淡水的变化的驱动因素，和（ii）确定这些变化如何影响水生生态系统功能。需要考虑的驱动因素包括污染物（如硫和氮的大气沉积）、与气候有关的最高温度变化、水文学、水流和风暴、水文形态学以及湖泊中不断变化的光气候/冰盖环境。第三个目标（三）是研究湖泊沉积物中植物eDNA的保存和科学潜力，以重建过去的水生植物组合。植物eDNA和可能的沉积物岩心的宏体化石和花粉数据将与30年来植物丰度和分布记录的历史生物监测档案进行比较。