Abstract
Combining field investigation and indoor experiments of Quercus baronii in Yunqiu scenic spot of south Luliang Mountain,some representative indicators such as specific leaf area(SLA),leaf area(LA),leaf dry matter content(LDMC),leaf aspect ratio(L/W),chlorophyll content(Chl),and leaf nitrogen content were performed and analyzed.The results were as follows:(1)As elevation gradient rises up,Q.baronii aspect ratio,Chlorophyll,SLA,LA,Narea,Nmass,saturated fresh and dry weight,all of their indicators had a first-increase-and-then-decrease trend and their peak value appeared at the altitude of 1 180m;however,LDMC had a significant negative correlation(P0.05)with the elevation gradient;(2)The LA of Q.baronii was significantly positively correlated with SLA and Nmass(P0.01),negtively with leaf dry matter(P0.05),but obviously negatively with Narea(P0.01);(3)The leaf SLA of Q.baronii had a positive correlation with leaf length-width ratio(P0.01)and an obvious positive correlation with Nmass(P0.01),while significantly positively correlated with LDMC and Nmass(P0.05);(4)LDMC of Q.baronii was significantly positively correlated with Narea(P0.05);This paper studied the correlation between leaf character factor of Q.baronii and the altitudinal as well as the most suitable growth condition for Q.baronii by observing the variation regulations of Q.baronii with different elevations in Yunqiu Mountain scenic spot.Accordingly,this result could provide a theoretical support for protecting and cultivating Q.baronii and a basis for exploiting and utilizing Q.baronii resource scientifically.
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Claims 9
Claim · model-written summary
Aspect ratio, chlorophyll, SLA, LA, nitrogen indices and leaf weights rose then fell with elevation, peaking at 1 180m.
Verbatim
e0“Quercus baronii in Yunqiu scenic spot of south Luliang Mountain”
e1“As elevation gradient rises up,Q.baronii aspect ratio,Chlorophyll,SLA,LA,Narea,Nmass,saturated fresh and dry weight,all of their indicators had a first-increase-and-then-decrease trend and their peak value appeared at the altitude of 1 180m”
Claim · model-written summary
LDMC correlated negatively with elevation.
- Taxon
- Quercus baroniiQuercus baroniie0
- Outcome
- LDMCe1
- Direction
- negative correlatione1
- Setting
- Yunqiu scenic spot of south Luliang Mountaine0
Verbatim
e0“Quercus baronii in Yunqiu scenic spot of south Luliang Mountain”
e1“LDMC had a significant negative correlation(P0.05)with the elevation gradient”
Claim · model-written summary
Leaf area correlated positively with SLA and Nmass.
Verbatim
e0“Quercus baronii in Yunqiu scenic spot of south Luliang Mountain”
e1“The LA of Q.baronii was significantly positively correlated with SLA and Nmass(P0.01)”
t0“leaf traits”
Claim · model-written summary
Leaf area correlated negatively with leaf dry matter.
- Taxon
- Quercus baroniiQuercus baroniie0
- Organ / stage
- leafe2
- Outcome
- LAe2
- Direction
- negtivelye1
Verbatim
e0“Quercus baronii in Yunqiu scenic spot of south Luliang Mountain”
e1“negtively with leaf dry matter(P0.05)”
e2“The LA of Q.baronii was significantly positively correlated with SLA and Nmass(P0.01),negtively with leaf dry matter(P0.05)”
Claim · model-written summary
Leaf area correlated negatively with Narea.
Verbatim
e0“Quercus baronii in Yunqiu scenic spot of south Luliang Mountain”
e1“The LA of Q.baronii was significantly positively correlated with SLA and Nmass(P0.01),negtively with leaf dry matter(P0.05),but obviously negatively with Narea(P0.01)”
Claim · model-written summary
SLA correlated positively with leaf length-width ratio.
Verbatim
e0“Quercus baronii in Yunqiu scenic spot of south Luliang Mountain”
e1“The leaf SLA of Q.baronii had a positive correlation with leaf length-width ratio(P0.01)”
Claim · model-written summary
SLA correlated positively with Nmass.
Verbatim
e0“Quercus baronii in Yunqiu scenic spot of south Luliang Mountain”
e1“The leaf SLA of Q.baronii had a positive correlation with leaf length-width ratio(P0.01)and an obvious positive correlation with Nmass(P0.01)”
Claim · model-written summary
SLA correlated significantly positively with LDMC and Nmass.
Verbatim
e0“Quercus baronii in Yunqiu scenic spot of south Luliang Mountain”
e1“while significantly positively correlated with LDMC and Nmass(P0.05)”
e2“The leaf SLA of Q.baronii”
Claim · model-written summary
LDMC correlated significantly positively with Narea.
Verbatim
e0“Quercus baronii in Yunqiu scenic spot of south Luliang Mountain”
e1“LDMC of Q.baronii was significantly positively correlated with Narea(P0.05)”