Ebe na-akpụ akpụ
A naakọwa ebe naakpụ akpụ (PWP) ma ọ bụ ebe naakapụ akpụ (WP) dị ka obere mmiri dị nime ala nke osisi ahụ chọrọ ka ọ ghara ịpụ akpụ. Ọ bụrụ na mmiri dị nala belata ruo ebe a ma ọ bụ ebe ọ bụla dị ala, osisi naakpọnwụ ma ghara ịlaghachi na turgidity ya mgbe etinye ya na ikuku jupụtara ruo awa 12. Nkọwa anụ ahụ nke ebe naagbaji, nke a na-egosipụta nụzọ ihe atụ dị ka θpwp ma ọ bụ θwp, a na-ekwu site na nkwekọrịta dị ka mmiri dị na -1,500 (−15 bar) nke nrụgide ịmị, ma ọ bụ isi hydraulic na-adịghị mma.[1]
Akụkọ ihe mere eme
[dezie | dezie ebe o si]E webatara echiche a na mbido afọ 1910. Lyman Briggs na Homer LeRoy Shantz (1912) chepụtara coefficient naakpụ akpụ, nke akọwapụtara dị ka pasentị mmiri dị nala mgbe a naebu ụzọ belata osisi ndị naeto nala ahụ ka ha ghara ịpụ nọnọdụ naenweghị ike ịgbake na ikuku naenweghị mgbakwunye mmiri na ala.[2][3] Lee ọrụ pedotransfer maka coefficient naagbaze site na Briggs.
Frank Veihmeyer na Arthur Hendrickson si Mahadum California-Davis chọpụtara na ọ bụ ihe naadịgide adịgide (ihe e ji mara) ala ma na-adabere na ọnọdụ gburugburu ebe obibi. Lorenzo A. Richards tụrụ aro na a naewere ya dị ka mmiri dị nala mgbe ala dị n'okpuru nrụgide nke -15 bar.[4]
Hụkwa
[dezie | dezie ebe o si]- Mmiri dịnụ
- Mmiri na-ekpo ọkụ
- Ikike ubi
- Mmiri ruru
- Nsogbu mmiri
- Mmiri na-enweghị njedebe
- Mmiri nke ala
- Usoro ijide mmiri
Ihe odide
[dezie | dezie ebe o si]- ↑ Weil (2016). The Nature and Properties of Soils, 15th, Columbus, Ohio: Pearson. ISBN 9780133254488. OCLC 936004363.
- ↑ Briggs (1912). "The wilting coefficient and its indirect determination". Botanical Gazette 53 (1): 20–37. DOI:10.1086/330708.
- ↑ Taiz (1991). Plant Physiology. Redwood City, California: Benjamin Cummings. ISBN 080530245X. OCLC 757209580.
- ↑ Veihmeyer, F.J. (1928). "Soil moisture at permanent wilting of plants". Plant Physiol. 3 (3): 355–357. DOI:10.1104/pp.3.3.355. PMID 16652577.