Data on the physical and chemical attributes of soil from a Caatinga remnant in the Santa Maria da Lage settlement, south-central Sergipe, Northeast Brazil

Average values obtained from physicochemical analyses of soil at a depth of 0–20 cm in a Caatinga fragment located in the municipality of Poço Verde, south-central Sergipe, have been made available (10°44’31’’S, 38°05’53’’W). The method of soil sampling and the chemical and physical analyses used to assess soil fertility were based on Silva (1999). The study region, located in the Sertanejo pediplain, features dissected surfaces and residual mountains at an altitude of 273 meters (SEPLAG-SE, 2014) and soils classified as Planosol, Halomorphic, and Regosol (SEPLANTEC-SE, 1997). The climate of the region is characterized as semi-arid, with a rainy season in winter (BSh), according to the Köppen climate classification (SEPLAG-SE, 2011; ALVARES et al., 2014). The average annual temperature is 23.7°C, with an average annual precipitation of 780 mm, and the rainy season extends from March to July (SEPLANTEC-SE, 1997; SEPLAG-SE, 2011). For more details on the data location, see the site map.本数据集公开了位于巴西塞尔希培州中南部波索韦尔迪（Poço Verde）市境内卡廷加（Caatinga）植被片段中0–20厘米深度土壤的理化分析平均值，采样点位坐标为10°44’31’’S, 38°05’53’’W。土壤采样方法及用于评估土壤肥力的理化分析方案均基于Silva（1999）的研究规范。研究区域地处塞塔内霍（Sertanejo）剥蚀平原，发育有切割地貌与残丘地貌，海拔高度为273米（SEPLAG-SE, 2014）；区域内土壤类型被划分为薄层土（Planosol）、卤形土（Halomorphic）与初育土（Regosol）（SEPLANTEC-SE, 1997）。依照柯本（Köppen）气候分类法，该区域气候为半干旱气候，归类为BSh型，雨季集中于冬季（SEPLAG-SE, 2011; ALVARES et al., 2014）。区域年平均气温为23.7°C，年平均降水量达780 mm，雨季时段为每年3月至7月（SEPLANTEC-SE, 1997; SEPLAG-SE, 2011）。如需了解数据点位的更多细节，请查阅点位示意图。