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慈竹(Sinocalamus affinis(Rendle) McClure)是川东长江河谷丘陵、低山地带重要的森林资源.涪陵市有3万亩.由于多年来的过度采伐造成林相残败,生长力很低,年平均亩产不到500斤,只有正常产量的1/5.为了提高产量,于1983年进行了施肥试验.一 试验地概况及方法试验地选在涪陵市共青森林经营所深坨工区.位于低山中部,海拔450米,坡向东,坡度25度.砂岩上发育的黄色砂壤土,厚度40厘米,PH值6.0.年均温16℃,年降水1500毫米.慈竹纯林,立竹为4代.每亩约70丛,平均胸径5厘米,平均高9米,郁闭度0.4,衰老竹较多.
Sinocalamus affinis (Rendle) McClure is an important forest resource in the hilly and low mountainous areas of the Yangtze River valley in eastern Sichuan, with 30,000 mu in Fuling City. Due to over-harvesting over many years, Produce less than 500 pounds, only normal production of 1 / 5. In order to improve the yield, fertilization test was carried out in 1983. An experimental overview and methods of test selection in Fuling City Gongqing Forest Depot deep work area. Located in the low mountains The central part, 450 meters above sea level, slope to the east, slope of 25 degrees. Yellow sand loam soil developed on sandstone, the thickness of 40 cm, PH value of 6.0. Average annual temperature of 16 ℃, annual rainfall of 1500 mm. Generation per acre about 70 plexus, the average diameter at breast height of 5 cm, an average of 9 meters, canopy density 0.4, more old bamboo.