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对顺义、菏泽和廊坊3个地区的欧美杨107按不同立地条件以及不同树龄分类,分析其化学组成。研究结果表明,顺义壤土5年生的欧美杨107化学组成最适宜制浆造纸,其苯醇抽出物含量0.82%,综纤维素含量80.86%,木素含量22.08%;菏泽沙壤土5年生的欧美杨107苯醇抽出物含量过高,达到2.03%,综纤维素含量最低,仅有78.87%,最不适宜作为造纸原料。对立地条件相同的欧美杨107,4年生以廊坊沙土的较好,5年生以顺义壤土的最好,6年生以菏泽沙壤土的较好;对树龄相同的欧美杨107,菏泽沙壤土以6年生的最好,廊坊沙土以4年生的最好。顺义壤土比沙土更适宜种植欧美杨107。
To Shunyi, Heze and Langfang 3 areas of Europe and the United States Yang 107 according to different site conditions and different age classification, analysis of its chemical composition. The results show that the chemical composition of five-year-old poplar Euonymus japonicus is the most suitable for pulping and paper making in Shunyi loamy soil. The content of benzene-alcohol extract is 0.82%, the content of holocellulose is 80.86% and the content of lignin is 22.08% The content of benzene alcohol extract was too high, reaching 2.03%, the content of holocellulose was the lowest, only 78.87%, the most unsuitable for papermaking raw materials. The opposite conditions of the same conditions in Europe and the United States Yang 107, 4-year-old to Langfang sandy soil is better, 5-year-old to Shunyi loam the best, 6-year-old Heze sandy loam soil is good; for the same age in Europe and the United States Yang 107, Heze sandy loam to 6 years The best, 4 years of Langfang sand to the best. Shunyi loam than sandy soil is more suitable for planting Europe and the United States Yang 107.