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首页> 外文期刊>Communications in Soil Science and Plant Analysis >Soil and groundwater relationships with pistachio yield in the Rafsanjan Area, Iran.
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Soil and groundwater relationships with pistachio yield in the Rafsanjan Area, Iran.

机译：伊朗Rafsanjan地区的土壤和地下水与开心果产量的关系。

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摘要

This study was conducted to examine the spatial variability of groundwater quality factors and to determine soil physicochemical properties in order to distinguish their relationships with pistachio yield in the Rafsanjan area, Iran. One hundred fifty-seven water samples from the wells of the studied area were evaluated for electrical conductivity (EC), sodium (Na+), calcium (Ca2+), magnesium (Mg2+), sulfate (SO42-), bicarbonate (HCO3-), chloride (Cl-), total hardness, and sodium adsorption ratio (SAR). Groundwater levels of the wells were also recorded. The EC and SAR values of groundwater for some of the wells separately compared with pistachio yield in the orchards irrigated with these wells. Six pistachio gardens with the same management but in different parts were selected, and each garden was divided in two (desired and undesired) parts. In each part of these orchards, soil samples were randomly taken in three replicates from depths of 0-40 and 40-80 cm to determine soil properties. One soil profile was also excavated for soil classification in each part of these gardens. Groundwater in most of the area had EC >8 dS m-1 and SAR>=13 (meq L-1)0.5. The lowest qualities of groundwater were found in the eastern, southern, and the northern parts of the area, where water's negative effects on pistachio yield have been reported. Statistical results for selected gardens showed that pistachio yield was affected considerably by salinity and clay content of the soils. Modern irrigation techniques and mixing high-quality water with poor-quality water in the area is necessary to prevent the reduction of the water table in the area. Preparing continuous soil salinity and texture maps are recommended for proper pistachio management in the area.
机译：进行这项研究以检查地下水质量因子的空间变异性，并确定土壤理化特性，以区分伊朗拉夫桑扬地区开心果产量与它们的关系。对研究区域的157个水样的电导率（EC），钠（Na +），钙（Ca2 +），镁（Mg2 +），硫酸盐（SO42-），碳酸氢盐（HCO3-）进行了评估，氯化物（Cl-），总硬度和钠吸附率（SAR）。还记录了井的地下水位。与使用这些井灌溉的果园中的开心果产量相比，其中一些井的地下水EC和SAR值分别更高。选择了六个开心果花园，它们的管理方式相同，但位于不同的部分，每个花园分为两个部分（理想和不理想）。在这些果园的每个部分，从0-40厘米和40-80厘米深度处随机抽取三份土壤样品，以确定土壤性质。在这些花园的每个部分，还挖掘了一种土壤剖面用于土壤分类。该地区大部分地区的地下水EC> 8 dS m-1，SAR> = 13（meq L-1）0.5。在该地区的东部，南部和北部发现了最低质量的地下水，据报道那里的水对开心果产量有负面影响。选定花园的统计结果表明，开心果的产​​量受土壤盐分和黏土含量的影响很大。为了防止该地区地下水位的减少，必须采用现代灌溉技术并将优质水与劣质水混合。建议准备连续的土壤盐度和质地图，以便对该地区进行适当的开心果管理。

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