I've been reading a Bill Mollison article and found this quote:
"Effects on Snow and Meltwater
Although trees intercept some snow, the effect of shrubs and trees is to entrap snow at the edges of clumps, and hold 7595% of snowfall in shade. Melting is delayed for 210 days compared with bare ground, so that release of snowmelt is a more gradual process. Of the trapped snow within trees, most is melted, while on open ground snow may sublime directly to air. Thus, the beneficial effects of trees on high slopes is not confined to humid coasts. On high cold uplands such as we find in the continental interiors of the USA or Turkey near Mt. Ararat, the thin skeins of winter snow either blow off the bald uplands, to disappear in warmer air, or else they sublime directly to water vapour in the bright sun of winter. In neither case does the snow melt to groundwater, but is gone without productive effect, and no streams result on the lower slopes.
Even a thin belt of trees entraps large quantities of driven snow in drifts. The result is a protracted release of meltwater to river sources in the higlands, and stream-flow at lower altitudes. When the forests were cleared for mine timber in 1846 at Pyramid Lake, Nevada, the streams ceased to flow, and the lake levels fell. Add to this effect that of river diversion and irrigation, and the whole series of lakes rich with fish and waterfowl have become dustbowls, as has Lake Winnemucca. The Cuiuidika's Indians (Paiute) who live there lost their fish, waterfowl, and fresh water in less than 100 years. The 'cowboys' have won the day, but ruined the future to do so."
More evidence, if only we could convince people, that a properly managed forest is part of the solution!
The whole PDF is: https://www.rainforestinfo.org.au/good_wood/trees_gs.htm
and it's got some interesting info in it, but I haven't finished reading it yet - busy time on the farm!
(I just tried to fix the link - let's hope this time it works.)