Strategically placed boulders and masses of tree roots provide cover for the fish while helping to stabilize the banks.
The first couple of images here depict a trash- and weed-choked pond surrounded by an overgrown mass of trees.
I've never seen the park so crowded; from above it must have looked like a solid mass of trees and people.
They traveled more than 300 kilometers on a tangled mass of trees before landing on a different island.
Biomass, in general, includes both above and below ground living and dead mass of trees, shrubs, vines, and roots.
In this paper, we demonstrate that it is possible to improve the sound attenuation obtained from a mass of trees by arranging them in a periodic lattice.
Shoot mass of trees from the three PMs in Y1 ranged from 30 to 70 g whereas, in Y2 and Y3, shoot mass was in the order poles > stakes > cuttings (PM × year interaction P < 0.01; Fig. 2b).
Statistical analyses were performed to test the significance of differences between averages of the following dependent variables: DBH, height, and estimated dry mass of trees grown on 5-year and 6-year cycles and shoot height and number of shoots per stump after 1 year of growth during the second 5-year cycle.
The shores of the bay were difficult to reach or see because they were hidden by a thick, almost impenetrable mass of trees and undergrowth ... Bears ate pigs, so settlers warred on bears.
It's a pioneer town, she pointed out, adding that she'd just been informed by the French Consulate that one of California's earliest settler families, one of miles and masses of "orange trees and sheep," was named Delpy.
The swampy region closest to the river, with its dense masses of mangrove trees often growing more than 100 feet (30 m) high, abounds in wildlife but has been of little use for either agriculture or human settlement.
