Most agronomic models estimate canopy light interception using the Beer-Lambert law. This method only accounts for leaf area index (LAI) and leaf angle distribution (LAD) without considering the crop’s structural heterogeneity in space, or soil-leaf or leaf-leaf radiative scattering. These factors have been extensively studied during the past ten years e.g; (Luquet et al. 1998; Nouvellon et al....

We examined the effects of structural and physiological acclimation on the photosynthetic efficiency of Scots pine (Pinus sylvestris L.) shoots. We estimated daily light interception (DLI) and photosynthesis (DPHOT) of a number of sample shoots situated at different positions in the canopy. Photosynthetic efficiency (epsilon) was defined as the ratio of DPHOT to the potential daily light interc...

This paper present how the light transfer and interception inside the canopy was computed by combining a tomato dynamic growth model. The tomato functional structural growth model was applied to produce the topology and geometry of individual plant, and through transformation, the canopy could be composed of multi-individual plants. In this simulation system, a radioactive transfer model named ...

For the purposes of forest restoration, carbon (C) fixation, and economic improvement, eucalyptus (Eucalyptus urophylla) has been widely planted in South China. The understory of eucalyptus plantations is often occupied by a dense community of the fern Dicranopteris dichotoma, which intercepts tree canopy leaf litter before it reaches the ground. To understand the effects of this interception o...

The light deficiency in the canopy is not the main factor limiting maize (Zea mays L.) production but the lower radiation use efficiency (RUE). Conservation tillage planting patterns were used to construct a sustainable agricultural system for soil protection and higher RUE. On these bases, we tried to create more uniform light distribution in crop canopy for increasing radiation use efficiency...

MUNISHI, P. K. T. & SHEAR, T. H. 2005. RainfaU interception and partitioning in afromontane rain forests of the Eastern Arc Mountains, Tanzania: implications for water conservation. The aboveground components of the hydrologic cycle of rain forest are important processes that determine the hydrologic hehavioiir and dynamics of these ecosystems. Precipitation, throughfall, stem flow, canopy inte...

In present work, we studied the ecological-hydrological law of three manmade forest communities at a located site of the central Yunnan province from 1998 to 2000. The finding indicated that the interception of canopy, stem-flow, through-fall of E.maideni-A.mearnsii, E.maideni, P.Yunnanensis took respectively up 35.21%, 0.65%, 64.14%; 30.10%, 0.88%, 67.56%; 27.8%, 4.64%, 69.25% of total precipi...

in order to study of some effective phenologic and physiologic characteristics on 18 sunflower hybrids yield under optimum conditions, an experiment was conducted as randomized complete block design with three replications at the research field of seed and plant improvement institute-karaj in 2006-2007. the result indicated that the hybrids showed significant difference in phonologic characteri...

intercropping is a correct method of management for crop production and leads to improvement of resource absorption and use by plants. in order to evaluate light interception and some characteristics of canopy in monocropping and intercropping of maize (zea mays l.) and faba bean (vicia faba l.) under climatic conditions of tabriz, a field experiment was conducted in 2006-2007 at the research s...

In hydrological models, evaporation from interception is often disregarded, combined with transpiration, or taken as a fixed percentage of rainfall. In general interception is not considered to be a significant process in rainfallrunoff modelling. However, it appears that on average interception can amount to 20–50% of the precipitation. Therefore, knowledge about the process of interception is...