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A Study of the Nutrient Cycle in Aerially Seeded Pinus massoniana of Hunan Province
qi liang hua 1; pang tong 2; chen xiao ping 3 ; he you jun 3 ; li zhi hui 1; yang mo hua 1 (1.college of resources and environment of csfu; zhuzhou 412006; hunan; china; 2.leizhou forestry bureau of chinese general development corporation of state owned forest farm; zhanjiang 524348; guangdong; china; 3.forestry bureau of hunan prouince; changsha 410007; hunan; china)
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