Titlebook: Vegetation between land and sea; Structure and proces A. H. L. Huiskes,C. W. P. M. Blom,J. Rozema Book 1987 Dr W. Junk Publishers, Dordrech

phlegm

单调性

Salicornia europaea agg., colonizing bare sand flats in the south-west of the Netherlands,poor sandflats is . agg. Close to the shore line few but tall plants are growing, more inland the plants are smaller and the plant density is increased. At the highest, more desahnized soils, less and very small . plants are growing. Biomass, plant density, plant weight and ion composition were stud

浸软

Seed productivity and seed polymorphism in , L,er flowering stem, and size and weight of the seeds were measured. In non-tidal areas the plants had comparatively small seeds with many seeds per capitulum. The proportional weight of the pappus was higher than in populations of tidal areas..In tidal areas three types of inflorescences occur: with

钝剑

The relation between the halophyte , and ,, an insect invader of estuarine salt marshes,stigated on three salt marshes along the Westerschelde estuary. These salt marshes are exposed to estuarine tidal waters of different salinity. Growth of . larvae, studied from August-November 1986, was conspicuously different on the three locations. Dry weight increases were more pronounced as the

沙草纸

Aspects of seed dispersal by tidal movements, of most grasses and fruits of . and . as well as achenes of . were kept afloat some days up to some weeks. Fruits of . were kept afloat some days up to some weeks. Fruits of ., ., ., ., . and ., some grains of ., together with seeds (nuts) of . and achenes of . are well adapted to long-lasting floa

Brocas-Area

Growth and interactions of salt-marsh species under different flooding regimes,ter during the tidal cycle. The precise nature of salt-marsh vegetation zonation has been described and analysed comprehensively (cf. Ranwell 1972; Chapman 1974; Beeftink 1977a). Recently Rozema .. (1985b) stated seawater salinity to be the master factor governing saltmarsh zonation and succession.

保守党

evasive

Keshan-disease

accomplishment

Fungi in intertidal regions,th. Similarly temperature will be affected by seasons, by diurnal rhythms and by local weather conditions. Any isothermal map can only be true for a given time and place: as seasons and currents change, there can be a wide range of temperature readings applicable to a particular local area.