论文部分内容阅读
光合作用是绿色植物吸收太阳能把二氧化碳变成具有高度化学势能的有机物质的过程,也是地球上所有生命活动赖以生存的基础。油松是我省的主要造林树种,也是黄土高原造林的优良树种。研究油松在不同条件下的光合强度变化,即可为正确地经营油松林,如合理混交、密度、修枝及间伐抚育、促进速生丰产提供理论依据。同时,对于研究油松林生态系统中物质和能量的运转亦具有重大意义。为此,我们于1980年6—10月,在黄龙蔡家川林场及淳化县爷台山,对不同条件下油松光合作用强度进行了测定。现将测定材料予以整理,供参考。一、测定原理与方法测定用山东省聊城农校“五七”工厂制
Photosynthesis is the process by which green plants absorb solar energy and turn carbon dioxide into organic matter with a high chemical potential. It is also the basis for all living things on Earth to survive. Pinus tabulaeformis is the main afforestation species in our province, and is also an excellent tree species afforestation in the Loess Plateau. Studying the changes of photosynthesis intensity of Pinus tabulaeformis under different conditions can provide a theoretical basis for the proper management of Pinus tabulaeformis forest, such as reasonable mixing, density, pruning and thinning, and promoting fast-growing and high yielding. At the same time, it is of great significance to study the operation of matter and energy in Pinus tabulaeformis ecosystems. For this reason, we measured the photosynthetic intensity of Pinus tabulaeformis under different conditions in June-October of 1980 in Caijiachuan Forest Farm of Huanglong and Ye-Taishan of Chunhua County. The determination of materials to be sorted for reference. First, the determination of principles and methods Determination of Liaocheng in Shandong Province School “57” factory system