| 词汇 | example_english_deciduous |
| 释义 | Examples of deciduousThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. An increasing time lag between maximum leaf fall and leaf flush was observed in the order evergreen, brevi-deciduous, deciduous and stem-succulent. Our findings suggest that established seedlings of common shade-tolerant tree species in this semi-deciduous forest may be tolerant of severe drought events. The findings suggest that, once established, seedlings of common tree species in this semi-deciduous forest may be tolerant of drought events. The model used site (riparian vs. deciduous), presence of galling insects (leaves with galls vs. leaves without galls) and individual plant as the independent variables. The exception is the central semi-deciduous forest, where remaining forest is highly fragmented. They are all deciduous, and there is little if any undergrowth. Five different pits were used in the study, with three being in the riverine area and two in the deciduous woodland. Nevertheless, in many cases the woods produced by deciduous and evergreen conifers may be distinguished from one another on the basis of percentage skew values. In addition, deciduous foliage units typically have small leaves at the base that grade into mature leaves more distally. The peninsula contains different types of tropical vegetation such as tropical deciduous forest, thorn scrub, mangroves, grassland, marshlands and dunes. In the evergreen forest site the most well-drained positions have paler colours than at equivalent positions in the semi-deciduous forest site. Most are canopy or emergent trees that rely on insect or bat pollinators and vertebrate seed dispersers; none is known to be dioecious or deciduous. Responses to canopy openings in architectural development of saplings in eight deciduous broadleaved tree species. Five partly deciduous species exhibited marked intraspecific variation in the seasonal extent of leaf loss. Factors influencing sapling composition in canopy gaps of a temperate deciduous forest. The vegetation of the study site is characterized by semi-deciduous gallery forests which range from 780-1300 m above sea level. Information on the regeneration strategies of late-germinating species in temperate deciduous forests remains scarce. In this period, deciduous trees shed their leaves (qualitative observations only). Aspects of tissue water relations and seasonal changes of leaf water potential components of evergreen and deciduous species coexisting in tropical dry forests. The vegetation in our study area was tall broadleaf deciduous forest rich in limeloving species adjoining cleared areas used in agriculture. Generally deciduous species flush new leaves towards the end of the submerged period with an extension into the dry season. Two possible ecological interactions may explain the incidence of galling insects and folivores on the same host leaves of the tropical dry deciduous forest. The high concentration of total sugars in larch reflects dormant season storage in the bark of this deciduous conifer. Compared with modern data, these values straddle the deciduous and the evergreen fields with short leaf retention times. In the southern part of the coniferous forest, the variety is increased by hardier types of deciduous trees, especially birch, asp and alder. Ecologically, deciduous forests and mixed forests (evergreen pine and deciduous trees) were surveyed during the expedition. Similarly, 73% of respondents in the deciduous forest zone reported that they used the same crop varieties regardless of the production system managed. Deciduous tree species shed senescent leaves from the beginning of the flooding and appear bare around the maximum water-level. An increasing correlation between monthly diameter increment and monthly precipitation can be observed in the order deciduous, brevideciduous, evergreen and stem-succulent species. Specifically, the dry season at the semi-deciduous forest site was less severe, similar in intensity to that in the evergreen forest site. Effects of defoliation on plant nutrient budgets are more severe in evergreens than deciduous species. The close fit observed in this study using 38-mm photographs may therefore only hold for closed-canopy situations of tall, evergreen or semi-deciduous tropical forests. Four plant species had significantly greater total phenol concentrations in galled than ungalled leaves in both deciduous hillside and riparian sites. There are differences in soil water content between riparian and hillside sites where trees in the former are mainly evergreen and deciduous in the latter. The temperate deciduous forests showed a strong concentration of canopy species and a dearth of subcanopy species. Variability in leaf morphology and chemical composition as a function of canopy light environment in coexisting deciduous trees. However, these results may be confounded by inclusion of deciduous species. Again, this comparison could be due to a bias of deciduous species in the temperate dataset. The trapping site was an area of deciduous woodland approximately 50-200 m from the shore of the tarn. The understorey vegetation, dominated by ferns, was probably mainly deciduous. Males disproportionately performed only three activities, of which none was in the moist deciduous forest zone. Effect of changing light availability on nutrient foraging in tropical deciduous tree-seedlings. Species which can be deciduous in the seedling stage have a higher chance of surviving the dry period than evergreen species. Very few trees were in a very poor condition and dying, 1% and 0.6% for the microphyll and deciduous savanna respectively. The vegetation is deciduous open woodland with a tree crown cover of 30-40%. Trees in the dry forest reach up to 20-25 m, with islands of evergreen vegetation distributed within deciduous and semi-deciduous areas. In systems with predominantly drought-deciduous species the correlation therefore may not hold. Brevi-deciduous tree species also drop leaves during the aquatic period but in a relatively shorter period. I n the drier areas wet forest is replaced by moist or deciduous forest. Structurally, tropical deciduous forests have abundant small stems which branch profusely near to the ground. Information on number and area of gaps formed by distinct episodes of tree mortality are still scarce in gap literature, particularly for semi-deciduous forests. Semi-deciduous vegetation is characterized by deciduous species that represent approximately 40% of tree individuals and abundant climbing plants. Closed circles are evergreen and open circles deciduous species as defined in the text. Using synchrony indices, we identified a continuum between evergreen and fully deciduous species, but discrete patterns of leaf flush. Phenological traits are represented by symbols as follows: hexagon for deciduous, square for brevideciduous and circle for evergreen. The spathe and the male zone of the spadix are deciduous and fall after anthesis. Decomposition rates and feeding activities in deciduous forests in relation to soil chemical parameters after liming and fertilisation. The area is seasonally deciduous f orest characterized by an average of 1855 mm of rainfall per year. Seed dispersal by ants in a deciduous forest ecosystem. Rodent post-dispersal seed predation in deciduous woodland: predator response to absolute and relative abundance of prey. Morphological adaptations to drought in seedlings of deciduous angiosperms. Throughout the belt deciduous forest alternates with areas of open steppe grassland. In this case, trees of a given species that occur in riparian sites will be evergreen whereas trees on hillsides of the same species will be deciduous. Therefore, more availability of younger leaves, during a short period of time, occurs in the deciduous forest than in the riparian evergreen forest in the wet season. Long term spatial dynamic in an old growth deciduous forest. The decomposition of branch-wood in the canopy and floor of a mixed deciduous woodland. Seasonal-changes in nitrogen and phosphorus fractions and autumn retranslocation in evergreen and deciduous taiga trees. In addition, five partly-deciduous species in which leaf flush and flowering were relatively synchronous exhibited marked variation among individuals in the seasonal extent of leaf loss. Deciduous species other than figs flushed synchronously during or about the time of the dry-wet transition, suggesting a response constrained by the severity of the dry season. The highest foliage, or branches in the case of deciduous trees, was determined by choosing the highest of at least five measurements of upper crown foliage. In addition, alliances are prerequisite for survival in so-called green deserts such as the equatorial rain forest or the dense deciduous forests of the last interglacial. Therefore, even though reduced soil water availability can shorten the growing season in semi-deciduous forest, the effect is limited to drier years, such as 1997/8. Long-term spatial dynamics in an old-growth deciduous forest. Vegetation and soil seed bank of successional stages in a tropical lowland deciduous forest. The present study attempted to consider the role of the different growth strategies by comparing species that were typical pioneers and non-pioneers, and that were evergreen and deciduous. In this study in a semi-deciduous tropical forest, the empirical relations held despite a number of theoretical problems with the methods when applied in the understorey. Effects of tree leaf litter on herbaceous vegetation in deciduous woodland. Abundance and allometrics of vines and self-supporting plants in a tropical deciduous forest. Spatial and temporal variation in the canopy cover in a tropical semi-deciduous forest. Thus, our seven temperate forests are not repeated measures of the same forest, but rather are closer to being independent measures of temperate deciduous forest structure. Marked intraspecific asynchronies in leaf flush or flowering occurred in five evergreen species and two deciduous fig species, and were associated with prolonged individual commitments to these states. The feeding activities of tropical insect herbivores on some deciduous forest legumes. The area is dominated by arable land, grazed and abandoned pastures, spruce plantations and deciduous woods. Upper-case letters designate the permanent dentition, while lower-case letters identify deciduous teeth. Marginal spines (fig. 7, c) long ; they are also set closely together and are less deciduous on the cephalic margin than elsewhere. The primary forest on this karst land is an evergreen broadleaved forest mixed with a few deciduous species. During the remainder of the year, the shade cloth was removed to simulate open deciduous forest canopy. If this was not possible because the deciduous period had begun, measurements were made on senescent leaves. A tree was labelled deciduous if it lost almost all the leaves and the remaining leaves were senescent. The habitat of all study islands and the mainland is semi-deciduous tropical forest. Individual transects were distributed in space within each site sampling across several uplands in deciduous forest, while in riparian forest transects were across different streams. There are differences in soil water content between riparian and hillside sites where trees in the first are mainly evergreen and deciduous in the second. Responses to canopy openings in architectural development of saplings in eight deciduous broad-leaved tree species. Examination of individual records of partially deciduous species demonstrates much variability within species in the seasonal extent of canopy loss. Furthermore, the apparently facultative loss of canopy in partly deciduous species is best explained as a direct response to moisture stress. The frequency of trees with 'heavy damage' in the deciduous savanna also increased. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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