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去年10、11月我随中国杨树考察组对法、意两国的杨树栽培进行了考察。现介绍如下。法、意两国的杨树栽培都有悠久的历史,近三十多年来发展尤其迅速,在木材供应上占有重要地位。意大利的森林面积为630万公顷,森林覆被率为21%。杨树人工林面积为13.3万公顷,加上6万公里成行的杨树,杨树总面积为15万公顷,仅占森林面积的2.5%,但杨木的产量却占本国木材产量的一半。法国森林面积为1,360万公顷,森林覆被率为25%,杨树面积为25万公顷,占森林面积的1.8%。1978年法国木材产量为2,860万立方米。杨木年产量为140万立方米。这些数字说明杨树栽培对于解决木材不足已起到很大作用。
In October and November last year, I accompanied the Chinese poplar investigation team to study the poplar cultivation in France and Italy. Now introduced as follows. The poplar cultivation in France and Italy both has a long history and has been developed especially rapidly in the past thirty years. It occupies an important position in the timber supply. Italy has 6.3 million hectares of forest area and 21% of the forest cover. Poplar plantations cover an area of 133,000 hectares. Together with 60,000 kilometers of poplar trees, the total area of poplars is 150,000 hectares, accounting for only 2.5% of the forest area. However, poplar production accounts for half of the country’s timber output. The French forest area is 13.6 million hectares, the forest cover rate is 25% and poplar area is 250,000 hectares, accounting for 1.8% of the forest area. French wood production in 1978 was 28.6 million cubic meters. Poplar annual output of 1.4 million cubic meters. These figures show that poplar cultivation has played a significant role in solving the problem of insufficient wood.