2020-2022年度祁阳站长期施肥定位试验红壤温度动态数据集OA

With global warming,soil temperature has become an important factor affecting soil fertility and crop growth.As an important soil type widely distributed in southern China,the temperature conditions of red soil directly affect microbial activity,nutrient mineralization,and the nutrient absorption efficiency of crop roots.This,in turn,plays a crucial role in crop growth,nutrient transformation,and soil ecological processes.Therefore,it is particularly important to carry out temperature monitoring of red soil.The experimental site is located in a subtropical monsoon climate region,and the soil type is red soil,with Quaternary red clay as its parent material.The cropping system consists of a wheat-maize annual double-cropping rotation.This dataset includes four different fertilization treatments:CK(control,no fertilization),NPK(nitrogen,phosphorus,and potassium fertilizers),NPKM(nitrogen,phosphorus,and potassium fertilizers combined with organic manure),and NPKS(nitrogen,phosphorus,and potassium fertilizers combined with straw incorporation).From 2020 to 2022,continuous monitoring was conducted at fixed points using the WatchDog 2900ET monitoring equipment equipped with the SMEC300 sensors.Soil temperature data were dynamically collected continuously at a depth of 5 cm every half hour,with the 24-hour mean values used as the daily soil temperature record.From 2020 to 2021,soil parameters were simultaneously measured using a soil parameter meter to determine soil temperature,soil moisture,and soil conductivity.This dataset encompasses multidimensional monitoring data,primarily including red soil temperature monitoring data collected from 2020 to 2022,as well as meteorological observation data such as air temperature,relative humidity,precipitation,wind direction,wind speed,dew point temperature,and solar radiation during the same period.It also includes supporting data on soil nutrient content(nitrogen,phosphorus,and potassium),crop yield,plant height,and 1,000-grain weight,representing indicators of soil fertility and crop growth.In terms of data quality,the accuracy of the core soil temperature data was verified through the highly significant correlation between soil temperature measurements obtained from two types of equipment.All meteorological and soil monitoring work was conducted in strict accordance with industry norms and standards,effectively ensuring the reliability and consistency of the entire dataset.This long-term continuous dataset of red soil temperature and accompanying monitoring data provides reliable support for revealing the evolution of the red soil microenvironment and analyzing the dynamic changes in soil fertility.