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Towards Smart Nutrient Retention Networks to Improve Water Quality: Perspectives, Theories and Tools /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Towards Smart Nutrient Retention Networks to Improve Water Quality: Perspectives, Theories and Tools // Dianneke van Wijk.
Author:	van Wijk, Dianneke,
Description:	1 electronic resource (343 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 86-02, Section: B.
Contained By:	Dissertations Abstracts International86-02B.
Subject:	Water quality. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31206419
ISBN:	9798383709399

Towards Smart Nutrient Retention Networks to Improve Water Quality: Perspectives, Theories and Tools /
van Wijk, Dianneke,

Towards Smart Nutrient Retention Networks to Improve Water Quality: Perspectives, Theories and Tools /Dianneke van Wijk. - 1 electronic resource (343 pages)

Source: Dissertations Abstracts International, Volume: 86-02, Section: B.

Water and nutrients are essential to life and wellbeing, which is reflected in the development of the earliest human civilizations in fertile river deltas (Bianchi 2016). In addition to providing basic physiological needs for drinking and food production (Maslow 1954; Denton 1990) as part of the social foundation for a safe and just space for humanity (Raworth 2012), water is used for sanitation (WHO, 2018), hydropower production (Jager and Smith 2008) recreation (Angradi et al. 2018), and has cultural value (Wantzen et al. 2016). Therefore, unsurprisingly, water security is said to underpin all UN Sustainable Development Goals (37th UN-Water Meeting, 2022). Besides supplying water, surface water systems also transport various substances (e.g., nutrients and carbon) (Cardille et al. 2007; Teurlincx et al. 2019). Regionally, hotspots of excess nutrients threaten freshwater and marine systems (Steffen et al. 2015a), resulting in eutrophication problems such as smelly and potentially toxic algal blooms and oxygen depletion (Paerl 1988; Chislock et al. 2013). Moreover, on a global scale, biogeochemical flows of phosphorus (P) and nitrogen (N) have crossed planetary boundaries, presenting high risks of large-scale ocean anoxic events (Steffen et al. 2015a). Besides threatening human and natural health, and services that surface waters provide (Janssen et al. 2020), these excess nutrients eventually also constitute a loss of resources into the deep oceans.Historically, agriculture benefited from naturally nutrient rich soils originating from slow flowing systems (e.g., floodplains, wetlands, and lakes) where nutrients were retained in the sediment. To further enhance the productivity of soils and to increase food production, agricultural lands are (synthetically) fertilized. Together with other technological developments, this currently lifts human population growth beyond resource scarcity as postulated by Malthus (Downing et al. 2020). Since the 1950s, rapid increases in human population, consumption of fertilizers and nutrient fluxes into the oceans co-occurred (Steffen et al. 2015b). Additionally, after nutrients from food have passed living systems, humanity tries to get rid of nutrient rich waste (e.g., feces and animal manure) as fast as possible. As already noted in the time Victor Hugo wrote Les Miserables, humanity thereby neglects the valuable potential of nutrients as resource for food production (Hugo 1862). Although the potential to produce fertilizers (e.g., by the Haber-Bosch process) and the efficiency to prevent nutrient losses (e.g., by wastewater treatment technologies) has increased, these essential resources are still lost through transport and storage in networks of waterbodies.Whereas others have focused on increasing nutrient use efficiency on land and reducing nutrient losses to water systems (e.g., Bouwman et al. (2005) and Withers et al. (2014)), I here focus on management of nutrients in interconnected aquatic ecosystems. First, because some nutrient pollution of surface waters in inevitable (Withers et al. 2014). Second, since by combining management strategies, larger impacts may be achieved (Lurling and Mucci 2020). Third, because I believe the spatial network perspective for water quality management is a promising but relatively novel and growing field in science and practice. In this thesis, I specifically focus on nutrient retention in interconnected waterbodies as a step towards enhanced nutrient conservation by retention and consecutive reuse (Box 1.1), by developing the novel "Smart Nutrient Retention Networks" (SNRNs) concept as a concrete direction for water quality management. By this, I hope to contribute to more sustainable management of water and nutrients (cf., Tammeorg et al. 2023).

English

ISBN: 9798383709399Subjects--Topical Terms:

556913
Water quality.

Towards Smart Nutrient Retention Networks to Improve Water Quality: Perspectives, Theories and Tools /
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