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第1期 林业经营 森林系统的整体性与复杂性问题的研究…………………………………………………高兆蔚（1） 河南省封山育林模式研究……………………………………………王丰军 席公晓 孙会新（5） 影响长江中下游滩地杨树净光合作用速率的生理生态因子的初步研究……………?
The first issue of the forestry management of the integrity and complexity of the forest system ....................................................... Gao Zhaoyu (1) Henan Province, closing Hillsides afforestation model .................. ................................. Wang Fengjun Xi Gongxiao Sun Huixin (5) Preliminary Study on Physiological and Ecological Factors Affecting Poplar Tree’s Photosynthetic Rate in the Middle and Lower Reaches of the Yangtze River ...............