Study On Structure Of Broad-leave Secondary Forest And Health Management In Badaling Forest Center

This study is on the broad-leaf secondary forest in Beijing Badaling forest center, include 3 kinds oak forest types mainly. This paper applies investigate standard plots and mostly three parameter of spatial structure to analyze the broad-leaf secondary forest structure characteristic.I found that Tilia mandshurica secondary forest by studying being pure forest of the same age. Forest seeds of trees is composed of a miscellaneous tree unitary, and crossing isolation degree is low, assume the regiment shape scattering. The Quercus L. forest one part is pure forest, and another part performs in Betula davurica forest to Quercus L. forest. Be aimed at all above characteristic, sumed up out broad leaf secondary forest health manage several key technologies. First is standing forest nurture , including forest land arranges and thing fell. Forest land arranges including the land surface handles and cuts irrigation to standing forest , and thing fell is density controlling standing forest. The second is that the seedling needle guarantor broad-leaf forest. The method is to protect broad-leaf species and kind of choice mounts a conifer in obedience to field tree suitable principle. Consider this locality seeds of trees first. The third is to urge a kind to restrain a bud , chop to get rid of the unnecessary coppice shoot, promote growing seedling renewal kind. The standing forest studying finally has been worked out setting an example design.