2014-2015年湖南省祁阳县土壤酸化调查数据集

2014年4月-2015年6月湖南省祁阳县范围内274个样点土壤样品酸化情况调查及分析数据。调查内容包括：样点地点、经纬度、海拔高度、母质、利用方式、肥料施用情况、秸秆还田情况、产量等。土壤样品为0-20cm土样，10米范围内取3点重复混合样，共274个土壤样品。土样风干后测定土壤PH、有机质、有效磷、交换性酸、交换性H+、交换性Al3+、交换性盐基（钙、镁、钾、钠）、阳离子交换量(CEC)，盐基饱和度，交换性盐基等指标。数据量为11782条。Survey and analysis data on soil acidification from 274 sampling points across Qiyang County, Hunan Province, China, spanning from April 2014 to June 2015. The survey covers the following contents: sampling point location, longitude and latitude, elevation, parent material, land use type, fertilizer application status, straw returning situation, crop yield, and other relevant items. The soil samples were collected from the 0-20 cm soil layer, with 3 replicate composite samples taken within a 10-meter radius for each sampling point, resulting in a total of 274 soil samples. After air-drying, the following soil physicochemical indices were measured: soil pH, soil organic matter, available phosphorus, exchangeable acidity, exchangeable H⁺, exchangeable Al³⁺, exchangeable base cations (calcium, magnesium, potassium, sodium), cation exchange capacity (CEC), base saturation percentage, and other exchangeable base-related indicators. The total number of data records is 11782.

搜集汇总

背景与挑战

背景概述

该数据集包含2014-2015年湖南省祁阳县274个土壤样品的酸化调查数据，涵盖pH、有机质、有效磷等多种指标，数据量达11782条。数据通过国际公认的测定方法保证质量，适用于地理学和农业科学研究。