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选用广西宁明县桐棉松和福建明溪县马尾松二个种源,在明溪县夏阳乡倒麻岭马尾松速生丰产样板林中设立马尾松速生丰产试验林。分别进行了种源、立地条件、育苗技术措施、造林成活率和营林措施等五个方面试验。幼林阶段结果表明,广西优良种源桐棉马尾松具有明显生长优势。并探讨了桐棉松播种期合理定苗密度。控制水肥,促进苗木木质化,协调其高径比和冠根比,确保苗木质量,及造林的技术措施。
Two sources were selected from Tongmusong, Ningming County, Fujian Province, and Pinus massoniana, Mingxi County, Fujian Province to establish Pinus massoniana fast-growing and high-yielding experimental forest in Pinus massoniana fast-growing model forest in Damarling, Xiayang Township, Mingxi County. The experiments were conducted in five aspects: provenance, site conditions, technical measures of seedling raising, survival rate of afforestation and measures of forest management. Young forest stage results show that the elite source of Guangxi cotton seedling has significant growth advantages. The reasonable maturing density of T. mongolica was also discussed. Control of water and fertilizer, promote seedling lignification, coordination of its height to diameter ratio and crown to root ratio, to ensure seedling quality, and afforestation technical measures.