- Tytuł:
-
Metodyczne zagadnienia monitoringu statusu wody w wybranych materialach biologicznych
Methodical questions of monitoring of water status in selected biological materials - Autorzy:
- Malicki, M A
- Powiązania:
- https://bibliotekanauki.pl/articles/1630378.pdf
- Data publikacji:
- 1999
- Wydawca:
- Polska Akademia Nauk. Instytut Agrofizyki PAN
- Tematy:
-
agrofizyka
materialy biologiczne
zboza
ziarno
drewno
gleby
woda glebowa
wilgotnosc gleby
wilgotnosc ziarna
wilgotnosc drewna
temperatura
zasolenie gleb
potencjal wodny gleby
pomiary wilgotnosci
natlenienie
monitoring
agrophysics
biological material
cereal
grain
wood
soil
soil water
soil moisture
grain moisture
wood moisture
temperature
soil salinity
soil water potential
moisture measurement
oxygenation - Opis:
- Methodical questions of monitoring of water status in soil, cereals grain and wood are discused ( where monitoring is understood as registration of time and spatial variability of selected properties). Amount of viariables which is necessary in order to determine water status depends on the complexion of the considered phenomena and is, so far, the matter of arbitrary choice. In most practical cases the water status is expressed only by moisture of the considered material ( like the building timber). In practical terms, two variables suffice to express water status in cereal grain: moisture and temperature. To describe water status in the soil not less then five variables are needed: amount of water (the soil moisture) soil water potential, salinity, oxygenation and temperature. The only sensors that can be integrated in modern data acquisition system must be read electrically. Therefore electroresistance and electrocapacitance methods were considered. Dielectric sensors were recognized as the proper choice.Soil is a complex material having instable characteristics. For this reason it is the most difficult task to monitor soil water status, particularly to determine the soil moisture. Therefore it has been assumed that measuring methods verified for the soil will be also suitable for other, less complex materials. Thus, monitoring of soil water status was mainly discussed. Special attention was focused to the time domain reflectometry, TDR, as the semi selective method for the soil moisture and salinity determination.
- Źródło:
-
Acta Agrophysica; 1999, 19; 1-108
1234-4125 - Pojawia się w:
- Acta Agrophysica
- Dostawca treści:
- Biblioteka Nauki
Artykuł