Abstract
The shape of droplets on leaf surface( DLS) can not only reflect the leaf wettability and water holding capacity,but also has important significance to understanding the rainfall interception and redistribution of rainfall in the forest. We observed the shape( height,basal area and contact angle) of DLS with 20-100 μL water amount on Quercus mongolica and Tilia amurense leaves and the shape change of 100 μL water drops during evaporation,revealed the shape difference of DLS on these two species and constructed the drop surface model. The result showed that the shape of DLS on T. amurense was relatively flat compared with that on Q. mongolica under the same amount water for separate drops. Namely,the drop on T. amurense leaf surface was 0.15-0. 41 mm lower in height,1. 07-9. 99 mm2 larger in basal area and 5°-10° smaller in contact angle. By every 1 μL increasing in water amount,the DLS on Q. mongolica and T. amurense increased 0. 0125 mm and 0. 0091 mm in height,0. 59 mm2 and 0. 70 mm2 in basal area and decreased 0. 185° and 0. 25° in contact angle,respectively. During evaporation,the shape changes of DLS were similar,but the changing rates of height and basal area of DLS on T. amurense were 9. 8% and 41. 1% faster than that on Q. mongolica respectively,which indicated the dependence of drop evaporation on its shape.
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Claims 13
Claim · model-written summary
Droplets on T. amurense leaves were 0.15-0. 41 mm lower in height than on Q. mongolica.
Verbatim
e1“the drop on T. amurense leaf surface was 0.15-0. 41 mm lower in height,1. 07-9. 99 mm2 larger in basal area and 5°-10° smaller in contact angle”
e2“relatively flat compared with that on Q. mongolica”
Claim · model-written summary
Droplets on T. amurense leaves had 1. 07-9. 99 mm2 larger basal area than on Q. mongolica.
Verbatim
e1“the drop on T. amurense leaf surface was 0.15-0. 41 mm lower in height,1. 07-9. 99 mm2 larger in basal area and 5°-10° smaller in contact angle”
e2“relatively flat compared with that on Q. mongolica”
Claim · model-written summary
Droplets on T. amurense leaves had 5°-10° smaller contact angle than on Q. mongolica.
Verbatim
e1“the drop on T. amurense leaf surface was 0.15-0. 41 mm lower in height,1. 07-9. 99 mm2 larger in basal area and 5°-10° smaller in contact angle”
e2“relatively flat compared with that on Q. mongolica”
Claim · model-written summary
Per 1 µL of added water, droplet height on Q. mongolica increased by 0. 0125 mm.
- Taxon
- Q. mongolica
_in_December_2009.jpg?width=60)
Quercus mongolicae3 - Outcome
- heighte3
- Direction
- increasede3
- Value
- 0. 0125 mme3
- Qualifier
- By every 1 μL increasing in water amounte6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_in_December_2009.jpg?width=500)
Verbatim
e3“the DLS on Q. mongolica and T. amurense increased 0. 0125 mm and 0. 0091 mm in height,0. 59 mm2 and 0. 70 mm2 in basal area”
e6“By every 1 μL increasing in water amount”
Claim · model-written summary
Per 1 µL of added water, droplet height on T. amurense increased by 0. 0091 mm.
Verbatim
e3“the DLS on Q. mongolica and T. amurense increased 0. 0125 mm and 0. 0091 mm in height,0. 59 mm2 and 0. 70 mm2 in basal area”
e6“By every 1 μL increasing in water amount”
Claim · model-written summary
Per 1 µL of added water, droplet basal area on Q. mongolica increased by 0. 59 mm2.
- Taxon
- Q. mongolicaQuercus mongolicae3
- Outcome
- basal areae3
- Direction
- increasede3
- Value
- 0. 59 mm2e3
- Qualifier
- By every 1 μL increasing in water amounte6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“the DLS on Q. mongolica and T. amurense increased 0. 0125 mm and 0. 0091 mm in height,0. 59 mm2 and 0. 70 mm2 in basal area”
e6“By every 1 μL increasing in water amount”
Claim · model-written summary
Per 1 µL of added water, droplet basal area on T. amurense increased by 0. 70 mm2.
Verbatim
e3“the DLS on Q. mongolica and T. amurense increased 0. 0125 mm and 0. 0091 mm in height,0. 59 mm2 and 0. 70 mm2 in basal area”
e6“By every 1 μL increasing in water amount”
Claim · model-written summary
Per 1 µL of added water, contact angle on Q. mongolica decreased by 0. 185°.
- Taxon
- Q. mongolicaQuercus mongolicae3
- Outcome
- contact anglee4
- Direction
- decreasede4
- Value
- 0. 185°e4
- Qualifier
- By every 1 μL increasing in water amounte6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“the DLS on Q. mongolica and T. amurense increased 0. 0125 mm and 0. 0091 mm in height,0. 59 mm2 and 0. 70 mm2 in basal area”
e4“decreased 0. 185° and 0. 25° in contact angle”
e6“By every 1 μL increasing in water amount”
Claim · model-written summary
Per 1 µL of added water, contact angle on T. amurense decreased by 0. 25°.
Verbatim
e3“the DLS on Q. mongolica and T. amurense increased 0. 0125 mm and 0. 0091 mm in height,0. 59 mm2 and 0. 70 mm2 in basal area”
e4“decreased 0. 185° and 0. 25° in contact angle”
e6“By every 1 μL increasing in water amount”
Claim · model-written summary
During evaporation, the height of droplets on T. amurense changed 9. 8% faster than on Q. mongolica.
Verbatim
e5“the changing rates of height and basal area of DLS on T. amurense were 9. 8% and 41. 1% faster than that on Q. mongolica respectively”
Claim · model-written summary
During evaporation, the basal area of droplets on T. amurense changed 41. 1% faster than on Q. mongolica.
Verbatim
e5“the changing rates of height and basal area of DLS on T. amurense were 9. 8% and 41. 1% faster than that on Q. mongolica respectively”
Claim · model-written summary
Droplet shape changes during evaporation were similar on the two tree species.
Not reportedDirection
Verbatim
e0“on Quercus mongolica and Tilia amurense leaves”
e6“the shape changes of DLS were similar”
Claim · model-written summary
The authors attribute the dependence of drop evaporation on droplet shape.
Verbatim
e0“on Quercus mongolica and Tilia amurense leaves”
e7“which indicated the dependence of drop evaporation on its shape”