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句容县属北亚热带,原生的森林植被是常绿、落叶阔叶混交林.由于历代战争的破坏和人们掠夺性的采伐,致使原生森林植被遭受严重的破坏.如今常绿、落叶阔叶混交林已很少见迹,落叶阔叶林尚残存一些次生林,但大多是林相杂乱、林木稀疏、径级不大的低产林或疏林.解放后,这些次生的阔叶林(包括疏林),又有一部分被改造为杉木、毛竹或经济林.因此,解放30余年来,落叶阔叶林仍在逐年减少.据下蜀公社1982年调查,阔叶林比1975年减少了1365亩.这种趋势是极为有害的,不仅会进一步导致生态平衡的失调,而且造成农用材的严重因难.如何控制这种有害的趋势?如何保护和发展阔叶树?这是必须引起重视和急待解决的问题.对此,我们在句容县亭子公社和下蜀公社作了一
Jurong County belongs to the northern subtropical, native forest vegetation is evergreen, deciduous broadleaved mixed forest, due to the destruction of the ancient war and people predatory logging, resulting in serious destruction of native forest vegetation.Now the evergreen, deciduous broad-leaved mixed However, there are still many secondary forests in the deciduous broad-leaved forests, but most of them are low-yield forests or sparse forests with sparse forests and sparsely populated forests, and the secondary broad-leaved forests ), And some were transformed into fir, bamboo or economic forest.Therefore, the liberation of deciduous broad-leaved forest is still decreasing year by year.According to the Shu Shu commune survey in 1982, broad-leaved forest reduced by 1365 acres than in 1975. This This trend is extremely harmful, not only leading to further ecological imbalances, but also to the serious difficulties of agricultural timber. How to control this harmful trend? How to protect and develop the broad-leaved tree? This is a problem that must be paid attention to urgently and urgently to be solved In response, we made one at the Pavilion Commune and the Shu Commune in Jurong County