orĂȘtie河流域的草地生产力

Annals Series on History and Archaeology Academy of Romanian Scientists Pub Date : 2022-01-01 DOI:10.56082/annalsarsciagr.2022.1.38

T. Marușca, V. Vinţan

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引用次数: 3

摘要

分析区域的永久草原位于Orăștiei走廊的中心部分和Șureanu山脉的西部，海拔225 -1,630米。草木植被盖度为91%，植被丛上维管植物的平均数量为60株。草料类参与草皮的比例接近60%，有害类参与草皮的比例超过30%。平均牧灵值(PV)为45，最具价值的群落为60 ~ 80，退化群落为5 ~ 7。最高的绿色产量(GMP)在a时超过23 t/ hm2。作为干草和果仁收获的黄菖蒲。19 t/ hm2，在185 d的季节内放牧能力为1.6 UVM / hm2。经济降解组合Violo declinatae - Nardetum、Junco - Molinietum、Botriochloetum ischaemi和Clinopodio - pterietum aquilini的PV值为5 ~ 7,GMP值为0.4 ~ 0.8 t/ha，结果最差

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GRASSLANDS PRODUCTIVITY IN THE HYDROGRAPHIC BASIN OF THE ORĂȘTIE RIVER

The permanent grasslands from the analysed area are located in the central part of the Orăștiei Corridor and the west of the Șureanu Mountains, from 225 -1,630 m altitude. The coverage with grassy vegetation is 91% and the average number of vascular plants on the vegetal associations is 60. The participation in the grassy carpet of fodder species reaches almost 60% and the harmful ones over 30%. The average pastoral value (PV) is 45 with differences from 60 - 80 for the most valuable associations to 5 - 7 for the degraded ones. The highest green mass production (GMP) of the grasslands was estimated at over 23 t/ha at As. Arrhenatherum elatioris harvested as hay and As. Trifolio repenti - Lolietum with 19 t/ha that has a grazing capacity of 1.6 UVM / ha in a season of 185 days. The worst results are obtained in the economically degraded associations Violo declinatae - Nardetum, Junco - Molinietum, Botriochloetum ischaemi and Clinopodio - Pteridietum aquilini, with 5 -7 PV and 0.4 - 0.8 t/ha GMP

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来源期刊

Annals Series on History and Archaeology Academy of Romanian Scientists

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审稿时长

15 weeks