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Study on Evapotranspiration Characteristics of Five Kinds of Turfgrass(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年02期
Page:
71-75
Research Field:
Publishing date:

Info

Title:
Study on Evapotranspiration Characteristics of Five Kinds of Turfgrass
Author(s):
LI Xiao- wen; LI Hai- mei; DONG Lin; LIU Zhi ke
College of Landscape Architecture and Forestry,Qingdao Agricultural University,Qingdao,Shandong 266109
Keywords:
turfgrass; evapotranspiration; limited irrigation; physiological index; appearance quality
PACS:
S 688.4
DOI:
-
Abstract:
Taking 5 kinds of turf grass as materals,through simulation field trials by experiment of potted plant,the evapotranspiration characteristics of five kinds of turfgrass under sufficient irrigation and limited irrigation treatments were studied,and ET of five kinds of turfgrassunder full irrigation and limited irrigation conditions and the leaf water content,chlorophyll content,the comprehensive evaluation of five turfgrass under limited irrigation were measured.The results showed that the daily ET varations were positively correlated with temperature,the maximum ET appeared on 12:00 to 14:00 in the afternoon and about 65%~70% of ET happened at 10:00~16:00.The order of five kinds of turfgrass on experiment under sufficient irrigation and limited irrigation conditions by average monthly ET were Festuca arundinacea> Lolium perenne>Poa pratensis>Cynodon dactylon>Zoysia japonica.The ET of cold- season turfgrass was higher than warm- season turfgrass under both water conditions.When soil moisture was in dry condition,the leaf water content and the appearance of quality were decreased.However,the chlorophyll content of five turfgrass species increased and then descended during limited irrigation condition and the maximum appeared on the third day.At this time,the soil moisture was the optimum,about 25%~28％Vol.

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Last Update: 2014-08-10