摘要
结合浙江余杭苦竹现代科技园区建设,开展了苦竹需水规律的初步研究,结果表明:苦竹年需水量为687.89mm,月需水量为19.33～97.15mm,当地苦竹各月的作物系数为0.91～3.84,苦竹生理需水与生态需水各占总需水量的96.86%和3.14%,苦竹需水量与水面蒸发的回归方程为E=142.47-4.74ε+0.068ε2-0.0003ε3,生产1t新竹需耗水96.1m3。本研究为苦竹生产合理灌溉提供了可靠依据,对苦竹稳产、高产、节水等均具有指导意义。
The water requirement rule of Pleioblastus amarus has been studied preliminarily for one year. The results were as follows：the annual water requirement was 687.89 mm, the monthly water requirement ranged from 19.33 mm to 97.15 mm,the crop coefficient varied from 0.91 to 3.84,and the percentage of physiological water requirement and ecological water requirement to the total water requirement were 96.86% and 3.14% ,respectively. A mathematical model between water requirement of Pl.amarus and water level evaporate is established：E= 142.47-4.74ε ＋0.068ε^2-0.000 3ε^3. At last, the relationship between the water requirement and the new bamboo yield was analysed, 96.1 m^3 water was needed for 1 ton new bamboo yield. These results can be applied to appropriate irrigation of Pl. amarus.
出处
《竹子研究汇刊》
2005年第3期22-26,共5页
Journal of Bamboo Research
