| dc.creator | CASANDRA REYES GARCIA | |
| dc.date | 2012-03-15 | |
| dc.date.accessioned | 2023-07-21T19:16:10Z | |
| dc.date.available | 2023-07-21T19:16:10Z | |
| dc.identifier | http://cicy.repositorioinstitucional.mx/jspui/handle/1003/168 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7735783 | |
| dc.description | We investigated vegetation structure, seasonal
water use and leaf deciduousness in a seasonally dry forest
of Dzibilchaltu´n, Mexico. Legumes, species which tend to
dominate these forests, have an array of water-saving traits.
We explored whether legume species had reduced water
use under similar growth conditions as other non-legume
species of this seasonally dry forest. Sap flux and conductive sapwood area were measured for eight legume and
12 non-legume species. Species abundance, diameter at
breast height (DBH), wood density and seasonal leaf cover
were characterized in 16, 10910 m
2
plots. Seasonal stand
water use was calculated using the sap flux and ecological
data. As predicted, legumes presented lower whole-tree
water use compared with sympatric non-legume species.
This difference, however, was related to a higher allocation
to non-conductive heartwood in legumes and not to differences in sap flux density. Differences in allocation were
higher in wider stems ([10 cm DBH); legumes above
25 cm DBH presented nearly half the daily water use of
non-legumes of similar size. Wet (July) and dry (March)
season stand water use was 629,000 and 156,000 kg ha
-1
month
-1
, respectively. During the wet season three nonlegume species with high basal area dominated the stand
water use, but due to early leaf fall in these species, dry
season stand water use was dominated by the legumes. | |
| dc.format | application/pdf | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0 | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.title | Sapwood to heartwood ratio affects whole-tree water use in dry forest legume and non-legume trees | |
| dc.type | info:eu-repo/semantics/article | |
