Author:Taylor, NJ; Annandale, JG; Ibraimo, NA; Steyn, JM; Gush, Mark BDate:Feb 2017planning. However, it is impossible to measure ET under all possible combinations of climate and management practices, which necessitates the use of ET models. Although empirical models are more likely to be adopted by consultants and growers, ...Read more
Author:Vahrmeijer, JT; Annandale, JG; Gush, Mark B; Taylor, NJDate:Sep 2012Agriculture, as the largest user of fresh water worldwide, is under close scrutiny to justify its use of water due to the increase in competition from a number of end-users. Apart from on-farm measures to increase water use efficiency, ...Read more
Author:Dzikiti, Sebinasi; Schachtschneider, K; Naiken, V; Gush, Mark B; Le Maitre, David CDate:Apr 2013Self-established stands of alien invasive pine trees are common in many parts of South Africa and elsewhere. They mainly invade non-riparian settings but sometimes invade riparian habitats. There are clear visual differences in the physical ...Read more
Author:Jovanovic, Nebojsa; Israel, SDate:Jan 2012The chapter is structured in three parts, namely: i) A theoretical overview of evapotranspiration processes, including the principle of atmospheric demand-soil water supply, ii) A review of methods and techniques to measure and estimate actual ...Read more
Author:Mashabatu, M; Ntshidi, Zanele; Dzikiti, S; Jovanovic, N; Dube, T; Taylor, NJDate:Aug 2023Inaccurate crop coefficients are major contributing sources of uncertainty that lead to inefficient use of limited available water resources. Understanding the need to improve water use efficiency in South Africa’s fruit industry, this study ...Read more
Author:García, CL; Jovanovic, Nebojsa; Teich, I; Fink, M; Dzikiti, Sebinasi; Bugan, Richard DHDate:Apr 2020Reliable spatial data of evapotranspiration (ET) in support of water resources management are limited. ET is a major component of the water balance, in many regions, and therefore it is critical that it be accurately quantified. To identify ...Read more
Author:Ibraimo, NA; Taylor, NJ; Steyn, JM; Gush, Mark B; Annandale, JGDate:Nov 2016Mature pecans use large quantities of water and therefore the accurate estimation of water use or evapotranspiration (ET) of pecan orchards is critical for judicious irrigation water management and planning. Measuring ET under all possible ...Read more
Author:Sun, Z; Gebremichael, M; Ardö, J; Nickless, A; Caque, B; Merboldh, L; Kutschi, WDate:Aug 2012Most existing remote sensing-based evapotranspiration (ET) algorithms rely exclusively on polar-orbiting satellites with thermal infrared sensors, and therefore the resulting ET values represent only “instantaneous or snapshot” values. However, ...Read more
Author:Bugan, Richard DH; Jovanovic, Nebojsa; May, F; Dzikiti, SebinasiDate:Sep 2011Groundwater recharge is the basis for accurate estimation of groundwater resources, for determining the modes of water allocation and groundwater resource susceptibility to climate change. Accurate estimations of groundwater recharge with ...Read more
Author:Dzikiti, Sebinasi; Jovanovic, Nebojsa; Bugan, Richard DH; Israel, S; Le Maitre, David CDate:Apr 2014Many studies have investigated the water relations of indigenous plants in the fynbos shrublands of the Cape, South Africa. These have mainly focused on understanding the mechanisms by which individual plant species respond to droughts, the ...Read more
Author:Davis, CL; Hoffman, MT; Roberts, WDate:Apr 2016Namaqualand is especially vulnerable to future climate change impacts. Using a high-resolution (0.5°x0.5°) gridded data set (CRU TS 3.1) and individual weather station data, we demonstrated that temperatures as well as frequency of hot extremes ...Read more
Author:Andreu, A; Dube, T; Nieto, H; Mudau, AE; González-Dugo, MP; Guzinski, R; Hülsmann, SDate:Feb 2019Savannas are among the most productive biomes of Africa, where they comprise half of its surface. They support wildlife, livestock, rangelands, crops, and livelihoods, playing an important socioeconomic role in rural areas. These water-limited ...Read more
Author:Jovanovic, Nebojsa; Jarmain, C; De Clercq, WP; Vermeulen, T; Fey, MVDate:Oct 2011Accurate quantification of the water balance, in particular evapotranspiration, is fundamental in managing water resources, especially in semi-arid areas. The objective of this study was to compare evaporation from endemic vegetation in the ...Read more
Author:Bugan, Richard DH; Jovanovic, Nebojsa; De Clercq, WPDate:Apr 2012A detailed water balance and conceptual flow model was calculated and developed for the Sandspruit catchment for the period 1990 to 2010 on a winter rainfall water-year (1 April - 31 March) basis. The Sandspruit catchment (quaternary catchment ...Read more