Influence of Soil Climate on Elemental Translocation in Soils

ProEnvironment Promediu

David C Weindorf¹  Teodor Rusu²  Bogdan Matei Duda² 

[1] Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, USA;University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur St., 400372 Cluj-Napoca

关键词: soil temperature;    soil moisture;    soil development.;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Bioflux SRL

【 摘 要 】

Soil suitability represents one of the most important conditions for effective use of agricultural lands in the Somesean Plateau, especially given its highly sloped land surface. Since conventional agricultural production systems  have caused soil degradation in many countries, effective land management technologies applied to crop rotation, tillage and fertilization systems, pedoameliorative work and crop protection systems must be adapted to protect the soil and water of the area. Soil moisture and temperature play a critical role in land-atmosphere interactions. The study was conducted across eight sites on the Somesan Plateu, Romania, reflective of diverse soil types and slopes. Climate of the area is characterized by an annual average temperature of 7.8°C; average precipitation is ~700 mm y ; the rainfall regime of the Somesan Plateau has shown great variability over time manifested both by large quantities of precipitation as well as its distribution across the land surface. A total of eight HOBO micro stations were installed for measuring soil temperature, soil moisture, air temperature and precipitations in 2013. Portable X-ray fluorescence (PXRF) spectrometry is a proximal sensing technique which provides  elemental data in-situ, in seconds. This study examined the potential of using PXRF for soils in the Somesan Plateau, RO by evaluating 23 soil samples representing a wide variety of soil types found in this area; the samples were taken from the locations where the microstations were installed. Even after one year of data one can determine that moisture affects the exchange of latent heat and  influences the overall surface layer characteristics through changes in evaporation. There is a strong link between soil moisture and temperature. A valuable resource in Romania are the growing degree days which have the ability to increase crop productivity over time. Significant differences in air temperatures exist across the Somesan Plateu. These differences need to be acknowledged and correlated with the soil properties when choosing the planting date to utilize the full growing season of the crops.

【 授权许可】

CC BY