The most economical irrigation amount and evapotranspiration of the turfgrasses in Beijing City, China

Zhang, Xinmin; Lin, Hui; Xiu-ju, Bian; Bingxiang, Zhao; Chai, Fahe; Sun, Xinzhang

doi:10.1016/j.agwat.2006.11.006

Cited by 18 publications

(20 citation statements)

References 17 publications

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“…These results are consistent with the research conducted both under water stress and under optimum water supply conditions by Zhang et al (2007) *Expressed as restoration of weekly evapotranspiration (%); °from 1 (worst) to 9 (best); # from 1 (completely brown) to 9 (bright green); § % of the plot covered by the green turf. LSD, least significant difference.…”

Section: Resultssupporting

confidence: 80%

“…The research was performed from June to September both in 2008 and 2009 (Meyer and Gibeault, 1986;Zhang et al, 2007). Main physical and chemical properties of the soil of the experimental site are shown in Table 2.…”

Section: Methodsmentioning

confidence: 99%

“…Many researches have addressed the differences of evapotranspiration between cool-season and warm-season grasses under different climate conditions (Kim and Beard, 1988;Kopec et al, 1988;Zhang et al, 2007). For several warm-season species, Carrow (1996) and Huang et al (1997aHuang et al ( , 1997b) studied the relation between drought tolerance and the depth of their root systems.…”

Section: Introductionmentioning

confidence: 99%

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Performance of warm-season turfgrasses under different water regimes in the Mediterranean climate conditions of Southern Italy

Marchione

Fracchiolla

2016

Ital J Agronomy

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In Mediterranean areas, very scarce rainfalls during the summer season are a limiting factor to the sowing and managing of turfgrasses. This work evaluates the response to different irrigation regimes (50 or 75% of reference evapotranspiration) of Cynodon dactylon (L.) Pers. cv Transcontinental, Paspalum vaginatum Swartz cv Salam, Pennisetum clandestinum (Chiov.) Hochst. cv AZ1, Stenotaphrum secundatum (Walt.) Kuntze cv Palmetto and Zoysia japonica Steud. cv El Toro. Performance of turfgrasses was evaluated in term of turf quality, colour index and ground cover.Only when rainfalls were scarce, water regime restoring the 75% of the evapotranspiration (ETo) showed significant effects. Under rainy conditions, the restoration of only the 50% of ETo was able to give highly acceptable values. The best performance was observed for Z. japonica, C. dactylon and P. vaginatum, whereas P. clandestinum and S. secundatum showed lower adaptability to water stress.

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Section: Resultssupporting

confidence: 80%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance of warm-season turfgrasses under different water regimes in the Mediterranean climate conditions of Southern Italy

Marchione

Fracchiolla

2016

Ital J Agronomy

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“…When, the night before the image acquisition day, the air temperature is really low and there is a clear sky condition, the surface of the city becomes very cold. Thus, on the image acquisition day, more time is needed by the urban surfaces (mainly concrete roofs and asphalt) to increase their temperature compared to the countryside [59][60][61]. The countryside has more vegetation and bare soils compared to the city, therefore the temperature increase is faster here than in urban areas.…”

Section: Lst-ndvi Correlationmentioning

confidence: 99%

“…These weather and climate conditions surely have an influence on the results obtained by remote sensing, because evapotranspiration influences the temperatures of urban and rural areas [57][58][59][60][61].…”

Section: Introductionmentioning

confidence: 99%

A Multi-Temporal Analyses of Land Surface Temperature Using Landsat-8 Data and Open Source Software: The Case Study of Modena, Italy

2018

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Abstract:The Urban Heat Island (UHI) phenomenon, namely urban areas where the atmospheric temperature is significantly higher than in the surrounding rural areas, is currently a very well-known topic both in the scientific community and in public debates. Growing urbanization is one of the anthropic causes of UHI. The UHI phenomenon has a negative impact on the life quality of the local population (thermal discomfort, summer thermal shock, etc.), thus investigations and analyses on this topic are really useful and important for correct and sustainable urban planning; this study is included in this context. A multi-temporal analysis was performed in the municipality of Modena (Italy) to identify and estimate the Surface Urban Heat Island (SUHI, strictly correlated to the UHI phenomenon) from 2014 to 2017. For this purpose, Landsat-8 satellite images were processed with Quantum Geographic Information System (QGIS) to obtain the Land Surface Temperature (LST) and the Normalized Difference Vegetation Index (NDVI). For every pixel, LST and NDVI values of three regions of interest (ROI, i.e., Countryside, Suburbs, and City Center) were extracted and their correlations were investigated. A maximum variation of 6.4 • C in the LST values between City Center and Countryside was highlighted, confirming the presence of the SUHI phenomenon even in a medium-sized municipality like Modena. The implemented procedure demonstrates that satellite data are suitable for SUHI identification and estimation, therefore it could be a useful tool for public administration for urban planning policies.Keywords: urban heat island; land surface temperature; remote sensing; Landsat-8; semi-automatic classification plugin; QGIS; global warming; urbanization BackgroundAbout half of the world population lives in urban areas [1]. The global urbanization rate is expected to increase by 70% compared to the current world population [2], both because of the continued emergence of new urban areas [3] and because of the constant population migration from rural to urban and suburban areas [4,5]. It is not therefore surprising that the negative impacts of urbanization are an ever-growing global concern [6-10]. Urbanization has a negative impact on the environment, mainly due to pollution, changes in the physical and chemical properties of the atmosphere, and in the type of cover of the soil surface [11]. These phenomena lead to so-called Urban Heat Islands (UHI), namely urban areas where the atmospheric temperature is significantly higher than that in the surrounding rural areas [12]. The presence of UHIs is an increasing phenomenon studied by the international scientific community because of its dangerous and significant effects. In fact, the temperature increase has effects on the environment (higher temperatures cause higher energy consumption, photochemical smog, and worsening of the air quality), on the climate and on human health [13][14][15][16].

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Effects of different amendments (organic matter and hydrogel) on the actual evapotranspiration and crop coefficient of turf grass under field conditions^*

Bandenay

Renau‐Pruñonosa

Morell

et al. 2020

Irrigation and Drainage

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The irrigation schedule in arid areas has to be efficient in order to reduce losses due to evaporation and deep infiltration. Irrigation optimization poses the need to establish with precision the value of actual evapotranspiration (ETa), and the crop coefficient (Kc). The water soil availability can be increased using hydrogel and organic matter amendments, and their effects could vary ETa and Kc. The aim of this study was to determine the ETa, and Kc of an experimental site with lysimeters on the Spanish Mediterranean coast cropped with a turf grass variety, Agrostis stolonifera ‐L‐93, under field conditions, and amended with hydrogel and organic matter. Reference evapotranspiration (ET0) was determined from meteorological data (FAO‐Penman‐Monteith equation). ETa was calculated from the water balance, and Kc was obtained by dividing ETa by ET0. Kc was calculated and compared on a yearly, monthly and daily basis. In summer, the differences between amendments become manifest:Unamended lysimeter (100% sand) had Kc values (0.92‐1.16), similar to organic matter amended lysimeter (0.99‐1.17). Maximum and minimum Kc values for the hydrogel amended lysimeters (1.04‐1.52) were higher than those from the other because of the ability of this compound to retain water, which facilitated evapotranspiration. Finally, hydrogel helped to maintain the turf grass quality.

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The most economical irrigation amount and evapotranspiration of the turfgrasses in Beijing City, China

Cited by 18 publications

References 17 publications

Performance of warm-season turfgrasses under different water regimes in the Mediterranean climate conditions of Southern Italy

Performance of warm-season turfgrasses under different water regimes in the Mediterranean climate conditions of Southern Italy

A Multi-Temporal Analyses of Land Surface Temperature Using Landsat-8 Data and Open Source Software: The Case Study of Modena, Italy

Effects of different amendments (organic matter and hydrogel) on the actual evapotranspiration and crop coefficient of turf grass under field conditions^*

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The most economical irrigation amount and evapotranspiration of the turfgrasses in Beijing City, China

Cited by 18 publications

References 17 publications

Performance of warm-season turfgrasses under different water regimes in the Mediterranean climate conditions of Southern Italy

Performance of warm-season turfgrasses under different water regimes in the Mediterranean climate conditions of Southern Italy

A Multi-Temporal Analyses of Land Surface Temperature Using Landsat-8 Data and Open Source Software: The Case Study of Modena, Italy

Effects of different amendments (organic matter and hydrogel) on the actual evapotranspiration and crop coefficient of turf grass under field conditions*

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Product

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Effects of different amendments (organic matter and hydrogel) on the actual evapotranspiration and crop coefficient of turf grass under field conditions^*