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油松是我国华北、西北地区的重要用材树种。测定油松的生物量,评定其生产力,可为林分的合理经营提供科学依据。1981年9月,我们在太谷县林场选择三块标准地进行油松地上部分生物量实测。太谷县林场位于太谷县东部,东径112°49′,北纬37°25′,海拔1400—1700米,地形起伏,山岗连绵。年均温6.3℃,1月均温-10.8℃,7月均温21.3℃;初霜期9月下旬,终霜5月下旬,无霜期约130天;≥110℃积温为2100—3000℃。年降水量580—
Pinus tabulaeformis is an important timber species in North China and Northwest China. Measuring the biomass of Pinus tabulaeformis and assessing its productivity can provide a scientific basis for the rational management of the stands. In September 1981, we selected three plots of standard biomass in the Taigu County Forest Farm to measure the aboveground biomass of Pinus tabulaeformis. Taigu County Forest Farm is located in the eastern Taigu County, east diameter 112 ° 49 ’, latitude 37 ° 25’, 1400-1700 meters above sea level, undulating terrain, rolling hills. Average annual temperature of 6.3 ℃, January average temperature - 10.8 ℃, July average temperature of 21.3 ℃; early frost in late September, late frost in late May, frost-free period of about 130 days; ≥ 110 ℃ accumulated temperature of 2100-3000 ℃. Annual precipitation 580-