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1987年7—9月,我局组织有关科技人员,对1983年春马尾松飞播造林的常德武岗寨、澧县道河、石门县八户山3个播区进行J成效调查。播区条件与实施情况 3个播区所辖7个乡、47个村,系武陵山余脉,包括当地主要山头,最低海拔40米,最高海拔929米。属丘陵和中低山地貌类型。武岗寨和道河系红色粘土发育而成的红壤,八户山系石灰岩、砂岩发育而成的红壤和黄红壤,土层厚度在45厘米以上,养分含量比较丰富,有机质2.5％,全氮0.2—0.3％,全磷0.08—0.15％,全钾
From July to September 1987, the bureau organized relevant scientific and technical personnel to carry out the J-effectiveness survey on three broadcast areas of Changde Wugang Village, Daxian Road and Shimen County of Hutu Mountain in the spring of 1983. Conditions and implementation of the sowing area Three townships under the jurisdiction of 7 townships, 47 villages, Department of Wuling Mountain remnants, including the main mountain, the lowest elevation of 40 meters, the highest elevation of 929 meters. Is a hilly and low mountain landscape types. Red soil with red clay developed from Wugang village and Dahe river system, red soil and yellow-red soil with limestone and sandstone developed in Hachinohe Mountain. The thickness of soil layer is above 45 centimeters, nutrient content is rich, organic matter 2.5%, total nitrogen 0.2 -0.3%, total phosphorus 0.08-0.15%, total potassium