the temporal efficiencies of the utilizations of ≥0 ℃ accumulative temperature, rainfall and solar radiation ranged between 90.0% and 93.1%, 90.7 and 94.0%, and 83.8% and 87.5%, respectively; The use efficiencies of solar energy in biomass and kernels ranged between 0.53% and 1.05% and 0.24% and 0.45%, respectively;
Results indicated that the leaf area, stem and leaf biomass, and caliper of seedlings of all four poplar clones increased with the decrease in cutting density.
Leaf area index reached its highest level at the spacing of 40 cm×40 cm, while the aboveground biomass of the seedling on an area basis increased as the cutting density increased.
Root biomass, length, and the number of roots in every diameter class, for each soil layer and for each plant species, are regarded as observation variables.
The inner harbor of Amoy possesses three different types of sea-shore, namely rocky, sandy and sand-muddy shores. The vertical distribution of organisms on the rocky shore agrees cssentially with the Vaillant principle for the classification of littoral zones, whilst the vertical distribution of organisms on the sandy and sand-muddy shotes is closely related to the composition of substratum.According to the mean biomass of whole year, the order of magnitude of the three different shores is as follows:...
The present investigation was undertaken during the years 1960-1962 with the object of making a preliminary survey of fouling organisms attached to the various ships and other underwater constructions in Amoy harbour(including wharf, buoy, cable, etc.). A greater emphasis was laid on the following subjects: the composition of various fouling communities, the biomass of various groups of fouling organisms and the ecological factors affecting their distribution in time aand space.A preliminary study of ...
The present paper emhodies the results of investigations on the composition of fouling organisms of Yu-lin harbour and its seasonal variation. A comparison is made of the fouling organisms of this harbour with those of Amoy harbour in the respects of their composition, biomass and seasonal fluctuation.The dormanant fouling plants of Yu-lin harbour are: Enteromorpha clathrata, E. tubulosa, Ectocapus confervoides, Giffordia spp. and Sp(?)ridia filamentosa, and the dormanant fouling animals are: Hydrolde...