Taşpınar Kadriye, Aytop Halil, Ateş Özgür, Varol Memet, Yalçın Gülser, Kızılaslan Fatih, Çakıllı Hasan, Toprak Serdar
Soil and Water Research Department, Transitional Zone Agricultural Research Institute, Eskisehir, Türkiye.
Soil and Water Research Department, East Mediterranean Transitional Zone Agricultural Research of Institute, Kahramanmaraş, Türkiye.
Environ Geochem Health. 2025 May 31;47(7):238. doi: 10.1007/s10653-025-02544-3.
Zinc concentration in soils can cause both nutritional deficiency and toxicity in plants. Therefore, both the concentration and availability of Zn, especially in semiarid soils, are critical for agriculture and the environment. This study was carried out to determine the relationship between Zn concentrations and some soil properties in semiarid agricultural areas of Türkiye and to create spatial distribution maps. For this purpose, 1529 surface soil samples (0-30 cm) were taken from the 8687 km study area and organic matter (OM), calcium carbonate (CaCO), pH, available phosphorus (AP), available Zn (AZn) and total Zn (TZn) analyses were carried out. In addition, the Zn availability ratio (Zn-AR) was calculated by the ratio of AZn to TZn concentration. The results indicated that AZn and TZn had high coefficients of variation (> 45%) due to the high heterogeneity of agricultural soils in the study area. Total Zn concentration ranged from 11.74 to 276.45 mg kg and only 11.8% of the soil samples for TZn were found to exceed the upper continental crust value (67 mg kg), indicating low Zn accumulation in the study area. Similarly, none of the samples for TZn exceeded the maximum permissible concentration in soils. However, AZn deficiency was determined in 55% of the samples. Correlation analysis showed that AZn had significant positive correlations with TZn, AP and OM (p < 0.01). Spatial distribution maps showed that there were some differences in distribution trends of TZn and AZn concentrations. Total Zn concentrations were higher in the northern and northwestern regions of the study area, while AZn concentrations were higher in the western region. The zinc availability ratio (Zn-AR) showed higher values in the western and southeastern regions of the study area. Soil properties influencing the spatial distribution of Zn availability were AZn, AP and OM.
土壤中的锌浓度可导致植物出现营养缺乏和毒性问题。因此，锌的浓度和有效性，尤其是在半干旱土壤中，对农业和环境至关重要。本研究旨在确定土耳其半干旱农业地区锌浓度与一些土壤性质之间的关系，并绘制空间分布图。为此，从8687平方公里的研究区域采集了1529个表层土壤样本（0 - 30厘米），并进行了有机质（OM）、碳酸钙（CaCO）、pH值、有效磷（AP）、有效锌（AZn）和总锌（TZn）分析。此外，通过AZn与TZn浓度的比值计算锌有效性比率（Zn - AR）。结果表明，由于研究区域农业土壤的高度异质性，AZn和TZn具有较高的变异系数（> 45%）。总锌浓度范围为11.74至276.45毫克/千克，仅11.8%的土壤样本中TZn超过上地壳值（67毫克/千克），表明研究区域锌积累较低。同样，TZn的样本均未超过土壤中的最大允许浓度。然而，55%的样本中检测到AZn缺乏。相关性分析表明，AZn与TZn、AP和OM呈显著正相关（p < 0.01）。空间分布图显示，TZn和AZn浓度的分布趋势存在一些差异。研究区域北部和西北部的总锌浓度较高，而西部地区的AZn浓度较高。锌有效性比率（Zn - AR）在研究区域的西部和东南部地区显示出较高的值。影响锌有效性空间分布的土壤性质为AZn、AP和OM。
