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Comparison of cool and warm season perennial grasses for biomass yield, quality, and energy balance in two contrasting semiarid environments
Biomass & Bioenergy ( IF 5.8 ) Pub Date : 2020-06-22 , DOI: 10.1016/j.biombioe.2020.105627
Recep Irfan Nazli , Alpaslan Kusvuran , Veyis Tansi , Hasan Huseyin Ozturk , Dilek Bostan Budak

Perennial grasses are valuable biomass feedstocks due to their potentially high biomass yield and environmental benefits. This study aimed to compare 7 cool season: tall wheatgrass, bulbous canary grass, reed canary grass, tall fescue, perennial ryegrass, orchard grass, and smooth brome grass and 3 warm season perennial grasses: miscanthus, switchgrass, and giant reed for biomass yield, quality, and energy balance at 2 harvesting periods (autumn and winter to early spring) over 3 growing seasons in cold (Cankiri, Turkey) and warm (Adana, Turkey) semiarid environments. Harvests in winter and spring both led to considerable yield losses with all of the grass species in both locations, while it promoted biomass quality by reducing the moisture and ash contents of the warm season grasses in both locations, and the cool season grasses only in Cankiri. In contrast, autumn harvest provided significantly lower moisture and ash contents in the cool season grasses grown in Adana over the 3 years, where it was observed that, on average, giant reed exhibited the highest biomass productivity in both locations. Furthermore, bulbous canary grass and tall wheatgrass were found to be the most productive species in the study among the cool season grasses. Additionally, bulbous canary grass in Adana and tall wheatgrass in Cankiri achieved considerably higher energy ratios than the warm season grasses, mainly as a result of a lack of energy input for irrigation. In this sense, these 2 cool season grasses may be considered as alternative bioenergy crops in semiarid environments for sustainable biomass production.



中文翻译:

在两个相反的半干旱环境中比较凉季和暖季多年生草的生物量产量,质量和能量平衡

多年生草由于其潜在的高生物量产量和环境效益而成为有价值的生物量原料。这项研究的目的是比较7个凉爽季节:高麦草,球茎金丝雀草,芦苇金丝雀草,高羊茅草,多年生黑麦草,果园草和光滑的溴麦草和3个暖季多年生草:花can,柳枝switch和巨型芦苇以获取生物量在寒冷(Cankiri,土耳其)和温暖(Adana,土耳其)半干旱环境中的3个生长季节中的2个收获期(秋季和冬季至初春)的质量,能量和能量平衡。冬季和春季的收成都导致两个地点的所有草种的相当大的产量损失,同时通过减少两个地点的暖季草和仅在Cankiri的凉季草的水分和灰分含量提高了生物量质量。 。相比之下,在过去三年中,秋季收成大大降低了阿达纳凉爽季节草中的水分和灰分含量,据观察,平均而言,巨型芦苇在两个地方均表现出最高的生物量生产力。此外,在凉爽季节的草丛中,鳞茎金丝雀草和高大的小麦草被认为是该研究中生产力最高的树种。此外,阿达纳州的鳞茎金丝雀草和Cankiri的高小麦草的能量比比暖季草高得多,这主要是由于缺乏灌溉能量输入的结果。从这个意义上讲,这两种凉爽季节的草在半干旱环境中可被视为可替代生物能源作物,以实现可持续的生物量生产。在过去的3年中,秋季收成大大降低了阿达纳州凉爽季节草的水分和灰分含量,据观察,平均而言,巨型芦苇在两个地方均表现出最高的生物量生产力。此外,在凉爽季节的草丛中,鳞茎金丝雀草和高大的小麦草被认为是该研究中生产力最高的树种。此外,阿达纳州的鳞茎金丝雀草和Cankiri的高小麦草的能量比比暖季草高得多,这主要是由于缺乏灌溉能量输入的结果。从这个意义上讲,这两种凉爽季节的草在半干旱环境中可被视为可替代生物能源作物,以实现可持续的生物量生产。在过去的3年中,秋季收成大大降低了阿达纳州凉爽季节草的水分和灰分含量,据观察,平均而言,巨型芦苇在两个地方均表现出最高的生物量生产力。此外,在凉爽季节的草丛中,鳞茎金丝雀草和高大的小麦草被认为是该研究中生产力最高的树种。此外,阿达纳州的鳞茎金丝雀草和Cankiri的高小麦草的能量比比暖季草高得多,这主要是由于缺乏灌溉能量输入的结果。从这个意义上讲,这两种凉季草在半干旱环境中可被视为替代生物能源作物,以实现可持续的生物量生产。巨型芦苇在两个地方都表现出最高的生物量生产力。此外,在凉爽季节的草丛中,鳞茎金丝雀草和高大的小麦草被认为是该研究中生产力最高的树种。此外,阿达纳州的鳞茎金丝雀草和Cankiri的高小麦草的能量比比暖季草高得多,这主要是由于缺乏灌溉能量输入的结果。从这个意义上讲,这两种凉爽季节的草在半干旱环境中可被视为可替代生物能源作物,以实现可持续的生物量生产。巨型芦苇在两个地方都表现出最高的生物量生产力。此外,在凉爽季节的草丛中,鳞茎金丝雀草和高大的小麦草被认为是该研究中生产力最高的树种。此外,阿达纳州的鳞茎金丝雀草和Cankiri的高小麦草的能量比比暖季草高得多,这主要是由于缺乏灌溉能量输入的结果。从这个意义上讲,这两种凉爽季节的草在半干旱环境中可被视为可替代生物能源作物,以实现可持续的生物量生产。阿达纳州的鳞茎金丝雀草和Cankiri的高小麦草的能量比比温暖季节的草高得多,这主要是由于缺乏灌溉能量输入的结果。从这个意义上讲,这两种凉爽季节的草在半干旱环境中可被视为可替代生物能源作物,以实现可持续的生物量生产。阿达纳州的鳞茎金丝雀草和Cankiri的高小麦草的能量比比温暖季节的草高得多,这主要是由于缺乏灌溉能量输入的结果。从这个意义上讲,这两种凉爽季节的草在半干旱环境中可被视为可替代生物能源作物,以实现可持续的生物量生产。

更新日期:2020-06-23
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