Quantifying Long-Term Benefits of Multi-purpose Rainwater Management Systems

Author(s):  
Peter Melville-Shreeve ◽  
David Butler
2021 ◽  
Vol 257 ◽  
pp. 107149
Author(s):  
Upendra M. Sainju ◽  
Andrew W. Lenssen ◽  
Brett L. Allen ◽  
Jalal D. Jabro ◽  
William B. Stevens

2007 ◽  
Vol 39 (6) ◽  
pp. 1391-1400 ◽  
Author(s):  
Carmine Crecchio ◽  
Maddalena Curci ◽  
Antonella Pellegrino ◽  
Patrizia Ricciuti ◽  
Nunzia Tursi ◽  
...  

Soil Research ◽  
2021 ◽  
Author(s):  
Laura Masilionytė ◽  
Zita Kriaučiūnienė ◽  
Egidijus Šarauskis ◽  
Aušra Arlauskienė ◽  
Ričardas Krikštolaitis ◽  
...  

2022 ◽  
Vol 172 ◽  
pp. 104339
Author(s):  
Eliane Cristina Gruszka Vendruscolo ◽  
Dany Mesa ◽  
Emanuel Maltempi de Souza

2019 ◽  
Vol 53 (1) ◽  
pp. 48-54
Author(s):  
Joe Sheffer ◽  
Edwin L. Bills ◽  
Sebastian Clerkin ◽  
Mark Walker ◽  
Marc-Henri Winter ◽  
...  

Author(s):  
Christopher Hunt

Research during the late 20th and early 21st centuries found that traces of human intervention in vegetation in Southeast Asian and Australasian forests started extremely early, quite probably close to the first colonization of the region by modern people around or before 50,000 years ago. It also identified what may be insubstantial evidence for the translocation of economically important plants during the latest Pleistocene and Early Holocene. These activities may reflect early experiments with plants which evolved into agroforestry. Early in the Holocene, land management/food procurement systems, in which trees were a very significant component, seem to have developed over very extensive areas, often underpinned by dispersal of starchy plants, some of which seem to show domesticated morphologies, although the evidence for this is still relatively insubstantial. These land management/food procurement systems might be regarded as a sort of precursor to agroforestry. Similar systems were reported historically during early Western contact, and some agroforest systems survive to this day, although they are threatened in many places by expansion of other types of land use. The wide range of recorded agroforestry makes categorizing impacts problematical, but widespread disruption of vegetational succession across the region during the Holocene can perhaps be ascribed to agroforestry or similar land-management systems, and in more recent times impacts on biodiversity and geomorphological systems can be distinguished. Impacts of these early interventions in forests seem to have been variable and locally contingent, but what seem to have been agroforestry systems have persisted for millennia, suggesting that some may offer long-term sustainability.


Author(s):  
Amirali Minbashian

Understanding individual performance at work is an important element in developing effective talent-management systems. Although research on individual performance has largely addressed between-person differences in performance, more recently, focus has been on within-person variability in performance. This chapter reviews the literature on within-person variability. A model of individual performance is presented that incorporates short-term and long-term within-person performance variability and individual differences. The benefits of the model as a framework for explaining individual performance are outlined, as are its implications for the conceptualization of talent and the development of talent-management systems. Specific talent-management practices with respect to employee assessment and employee motivation are discussed.


Author(s):  
С.А. Запивалов

В Центральном районе Нечернозёмной зоны в 2018–2020 годах изучалось шесть систем ведения долголетнего сенокоса. В среднем за годы исследования применение техногенной системы позволило получить 3,86 т/га сухого вещества (СВ), применение интегрированной — 5,08 т/га СВ, техногенно-органической — 4,75–5,16 т/га СВ, техногенно-минеральной экстенсивной — 3,97–7,13 т/га СВ, техногенно-минеральной интенсивной — 6,60–8,85 т/га СВ, комбинированной — 7,03–7,25 т/га СВ. Существенное влияние на урожайность оказывали погодные условия. В засушливый год не был сформирован полноценный 2-й укос, что не позволило травостоям реализовать потенциал продуктивности. Более эффективно ограниченный запас влаги в почве использовался в техногенно-минеральной интенсивной системе. В условиях достаточной влагообеспеченности был получен полноценный второй укос, составляющий 30–50% сбора СВ за сезон. При улучшении условий увлажнения урожайность наиболее заметно повышалась при применении техногенно-минеральной интенсивной системы. Отмечена высокая экономическая эффективность применения всех изучаемых систем за счёт длительного использования травостоя. В зависимости от технологии рентабельность производства корма составляла 74–220%, себестоимость 1 корм. ед. — 3,12–5,75 руб. Для получения 65,2–88,0 ГДж, 5,1–6,8 тыс. корм. ед. и 781–1153 кг сырого протеина с 1 га на суходольных лугах Центрального района Нечернозёмной зоны рекомендуется применять техногенно-минеральную интенсивную систему ведения сенокоса. В случае недостаточной обеспеченности хозяйств материально-техническими ресурсами рекомендуются техногенная, интегрированная, техногенно-органическая и техногенно-минеральная экстенсивная системы ведения, позволяющие поддерживать высокое участие бобовых видов в травостое, что обеспечивает использование биологического источника азота и позволяет получить с 1 га сенокосных угодий 39,0–56,7 ГДж, 3,1–4,5 тыс. корм. ед. и 462–688 кг сырого протеина. Six management systems for long-term hayfields were tested in the Central Non-Chernozem region in 2018–2020. Without fertilization 3.86 t ha-1 of dry matter (DM) was obtained. Integrated farming resulted in 5.08 t DM ha-1, application of organic fertilizers — 4.75–5.16 t DM ha-1, extensive farming with mineral fertilization — 3.97–7.13 t DM ha-1, intensive farming with mineral fertilization — 6.60–8.85 t DM ha-1, combined management system — 7.03–7.25 t DM ha-1. Weather significantly affected crop productivity. Under drought grasses showed poor growth after the first cut leading to low yield. Intensive farming with mineral fertilization allowed more effective use of soil water resources. Sufficient water availability positively affected grass growth after the first cut resulting in 30–50% of DM yield for a season. The best performance was observed under intensive farming with mineral fertilization. All the management systems provided high economic efficiency due to a long-term cultivation of swards. Payback amounted to 74–220%, prime cost of 1 feed unit — 3.12–5.75 rubles. Intensive farming with mineral fertilization was recommended in order to obtain 65.2–88.0 GJ, 5.1–6.8 thousand feed units and 781–1153 kg of crude protein from 1 ha. In case of insufficient material and technical resources other above-mentioned systems can be used, except for the combined one. These management systems maintained high proportion of legumes in swards, an effective mean to obtain nitrogen via nitrogen-fixing bacteria. As a result, swards yielded 39.0–56.7 GJ, 3.1–4.5 thousand feed units and 462–688 kg of crude protein from 1 ha.


2009 ◽  
pp. 186-200 ◽  
Author(s):  
Michel J. Sassene

This chapter investigates asthmatics’ reasons for not adopting an e-health system for asthma selfmanagement. An understanding of these reasons is particularly relevant, because clinical evidence indicates that, if used, such systems lead to better asthma management. The investigated asthma system is, however, based on a taken-for-granted image of asthmatics as, per se, striving to be symptom-free. This image is incompatible with interviewed asthmatics’ day-to-day performances of their asthma, and renders invisible (a) that their asthma performances emphasize an economy of good passages and of feeling capable, (b) that they achieve the objective of feeling capable in quite different ways, and (c) that feeling capable does not per se equal being symptom-free all the time. To attain long-term use of self-management systems and other patient-centred e-health systems, such systems must acknowledge and link into the manifold performances that comprise users’ ways of living with their disease.


Sign in / Sign up

Export Citation Format

Share Document