Improving vineyard water use efficiency and yield with variable rate irrigation in California
Improving vineyard water use efficiency and yield with variable rate irrigation in California
复制标题
加州通过可变流量灌溉提高葡萄园用水效率和产量
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
N. Dokoozlian
中科院分区：
文献类型：
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作者：
L. Sanchez;B. Sams;M. M. Alsina;Nigel Hinds;L. J. Klein;N. Dokoozlian
2013年初，在一个总面积为12.5公顷的滴灌赤霞珠葡萄园内的4.05公顷区域实施了可变速率滴灌（VRDI）系统。将VRDI区域划分为140个15×15米的灌溉区，这些灌溉区在三个季节独立供水，每周计划基于估计的实际ET。灌溉计划的目标是减少空间变异，同时保持高产。与相邻的4.05公顷传统滴灌葡萄园（CDI）相比，VRDI在所有三年中提高了产量和水分利用效率，并在2013年和2015年降低了空间依赖性和结构。
A variable rate drip irrigation (VRDI) system was implemented in early 2013 in a 4.05-ha area inside a drip-irrigated Cabernet Sauvignon vineyard measuring 12.5 total ha. The VRDI area was split into 140 15×15-meter irrigation zones which were watered independently during three seasons with weekly schedules based on estimated actual ET. Irrigation was scheduled with the objective of decreasing spatial variability while maintaining high yields. Compared to an adjacent, 4.05-ha, conventionally drip irrigated section of the vineyard (CDI); VRDI increased yield and water use efficiency in all three years and decreased spatial dependency and structure in 2013 and 2015.