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《Protection Forest Science and Technology》 2018-06
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Investigation on Growth of Poplar Forest in Flood Land in Ledu District of Haidong City in Qinghai Province

He Haiyan;Forest Bureau of Ledu District of Haidong City in Qinghai Province;  
Growth of poplar in flood land in Haidong City was investigated.Result shows that the poplar plantation are concentrated in Ledu area in lower reaches of the Yellow River.The main tree species are Populus cathayana,Populus simonii;most of them are pure poplar forests except for mixed forest of poplar + Hippophae rhamnoides.Forests have poor fertility conditions;diseases and insect pests have spread year after year;most of the trees decline in growth.
【CateGory Index】: S792.11
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