Evaluation Of Quality Of Woodland Of Changsha City

Woodland is the most important means of forestry production and the material basis of forestry development, with the implementation of afforestation which is production activity in the woodland, people gains the wood products, other forest products, sideline products, and special products which all is needed. For forestry, woodland is the source of forestry production and existence. Woodland is a special role in so many material conditions of forestry production. As the basis of forest management, woodland quality is important and valuable to make a comprehensive evaluation on woodland quality, manage the forest, promote the sustainable development of forestry and afforestation, etc.Study on Furong District, Tianxin, Yuelu District, Yuhua District, Kaifu District of Changsha City, and this five Districts as an experimental area, select six soil factors of affecting the quality of woodland soil thickness Ci, soil type C2, slope C3, slope position C4, elevation C5, gradient C6and three meteorological factors as annual precipitation C7, annual sunshine hours Cs, annual average temperature C9, using AHP and Delphi method, to establish Changsha five woodland quality evaluation system. When the forest quality evaluation system of Changsha five districts was establishing, the selection of indicators, we comprehensively considered Southern Collective Forest Area various factors affecting the quality of woodland, most importantly, take into account the non-forest land and woodland have used the same evaluation criteria to make its impact factor combination of quantitative and qualitative analysis, obtained weights to establish woodland quality evaluation system model, get woodland quality evaluation value is calculated:Wqcev=0.2445×Ci+0.12225×C2+0.061125xC3+0.061125×C4+0.061125×C5+0.12225×C6+0.1485×C7+0.06225×C8+0.03925×C9.Then get in Changsha five boroughs of woodland quality grade, statistics showed: Changsha five woodland quality grade grades I the area of4208.3hm2, accounting for five District Changsha woodland15.28%; woodland quality grade grades II the area of4230.4hm2, accounting for five District Changsha woodland15.36%; woodland quality level the area of13,145.9hm2grade Ⅲaccounted for five districts Changsha woodland47.74%; woodland quality grade grades IV the area of4427.7hm2, accounting for five woodland Changsha of16.08%; woodland grade V quality level the area of1521.6hm2, accounting for five District Changsha woodland5.53%, obtained Changsha five woodland in the overall level of quality middle level.Finally, according to Changsha five woodland quality grade evaluation results are given in Changsha five woodland management measures and recommendations on the different levels of development of different woodland management measures, protection and utilization of woodland science, and maximize the productivity of woodland, promote inefficient use of woodland from extensive to intensive and efficient transition, Changsha promote the sustainable use of five areas of woodland.