Observations of shelter-belt effects were made by the writer in spring of 1955,in the sand dune region, western Hopei, where dcns}ly planted belts of cedartrees(Thuja Orientalis), with an average height of seven metres and a net of insu-fflation belts of black locust (Robinia Psendoacacia) with an average height of 4 metres wera established.
YUAN CHIA-TZU
. THE EFFECTS OF THE SHELTER BELTS IN THE SAND DUNE AREA, WESTERN HOPEI[J]. Acta Geographica Sinica, 1955
, 21(4)
: 393
-403
.
DOI: 10.11821/xb195504005