| 000 | 037480000a22005410004500 | ||
|---|---|---|---|
| 003 | CR-TuBCO | ||
| 005 | 20200203222324.0 | ||
| 008 | 150407b xxu||||| |||| 00| 0 eng d | ||
| 040 |
_aCR-TuBCO _cCR-TuBCO _bEs |
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| 090 |
_aCATIE _bV473 |
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| 100 | 1 |
_9128378 _aVera, N.E. |
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| 100 | 1 |
_999140 _aNewton, A.C. |
|
| 100 | 1 |
_967702 _aFinegan, Bryan _d1950-2015 |
|
| 245 | 1 | 0 |
_aThe photosynthetic characteristics of saplings of eight canopy tree species in a disturbed neotropical rain forest _b: |
| 260 | _c1999 | ||
| 500 | _a3 fig. 4 tab. Bib. p. 421-422. Sum. (En) | ||
| 520 | _aFoliar gas exchange characteristics, understorey microclimate, and crown irradiation were assessed for saplings of eight canopy tree species in two plots of neotropical rain forest with different degrees of canopy opening. Species studied belonged to different putative guilds: shade intolerants (both short-lived-pioneers-and long-lived), intermediates, and shade-tolerants. A considerable overlap was recorded between species in values of the photosynthetic rate per unit leaf area (P subíndice N). The highest median P subíndice N (1.26 ¿mol m-2 s exponente -1) was recorded in the pioneer Croton killipianus, while slightly lower median values were recorded in simarouba amara and Pentaclethra macroloba, and markedly lower values in two species of Vochysiaceae (Qualea paraense and Vochysia ferruginea), both putative intolerants. Highest median stomatal conductance (g subíndice s) was also shown by C. killipianus, while S. amara, P. macroloba, and L. procera exhibited intermediate values, and the lowest g subíndice s was shown by V. ferruginea and Q. paraense. Overall irradiance and crown irradiation, P subíndice N, and g subíndice s of saplings were higher in the plot which had previously received a silvicultural treatment. Most values of photosynthetic photon flux density (PPFD) were <100 ¿mol m-2 s-1 in both plots, with shortlived peaks of up to 2000 ¿mol m-2 s-1 in the treated plot. When the relationship between P subíndice N and irradiance (I) was examined by fitting P subíndice N/I curves, the degree of fit varied markedly between species, values of the regression coefficient r exponente 2 were between 0.09 and 0.51. No significant differences between species were recorded in P subíndice max and species also demostrated little variation in the predicted values of dark respiration (R subíndice D), values varying between -0.51 and -1.46 ¿mol m-2 s-1 in Q. paraense and Minquartia guianensis, respectively. Fitted values of apparent quantum efficiency were also fairly uniform, generally falling within the range 0.02-0.03 mol(CO2) mol-1 (photon). | ||
| 650 | 1 | 4 |
_9142782 _aCROTON KILLIPIANUS |
| 650 | 1 | 4 |
_9164601 _aSIMAROUBA AMARA |
| 650 | 1 | 4 |
_9157934 _aPENTACLETHRA MACROLOBA |
| 650 | 1 | 4 |
_9161518 _aQUALEA PARAENSE |
| 650 | 1 | 4 |
_9168569 _aVOCHYSIA FERRUGINEA |
| 650 | 1 | 4 |
_9138263 _aBOSQUE INTERVENIDO |
| 650 | 1 | 4 |
_9138258 _aBOSQUE HUMEDO |
| 650 | 1 | 4 |
_9148477 _aFOTOSINTESIS |
| 650 | 1 | 4 |
_9147574 _aFACTORES CLIMATICOS |
| 650 | 1 | 4 |
_9154820 _aMICROCLIMA |
| 650 | 1 | 4 |
_9150869 _aILUMINACION |
| 650 | 1 | 4 |
_9162196 _aREGIMENES DE LUZ |
| 650 | 1 | 4 |
_9150442 _aHOJAS |
| 650 | 1 | 4 |
_9135883 _aANATOMIA DE LA PLANTA |
| 650 | 1 | 4 |
_9168954 _aZONA ATLANTICA |
| 650 | 1 | 4 |
_9153800 _aMANEJO FORESTAL |
| 650 | 1 | 4 |
_9155109 _aMODELOS |
| 650 | 1 | 4 |
_92064 _aCOSTA RICA |
| 773 | 0 |
_tPhotosynthetica (Checoslovaquia) _d1999 _gv. 36(3) p. 407-422 |
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| 856 |
_qpdf _uhttp://link.springer.com/article/10.1023/A%3A1007076103204 _z(En) |
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