Evaluation And Improvement Plan Of In-forest Landscape In The Dawei Mountain National Forest Park At Liuyang,Hunan Province

In-forest landscape was an important part of forest landscape,and also was the main place of forest recreation.The evaluation of forest landscape played an important role in the management of scenic recreational forest.Based on remote sensing image analysis and practical investigation of the Dawei Mountain National Forest Park,36 forest landscape plots was established.Meanwhile plant species and the relevant data of landscape structure was recorded and investigated in those plots.The study evaluated the quality of forest landscape by using the method of SBE and the resulet aimed to provide scientific basis for the park forest landscape quality improvement and reasonable construction.The research showed that the forest scenic beauty of landscape elements sorted by contribution rate was as follows:the degree of unity of understory?30.6%?,dead tree and wood?20.3%?,interest?14.2%?,litter?13.4%?,the horizontal perspective?8.7%?,herb height?7%?and color richness?5.8%?.Using stepwise linear regression method,the in-forest landscape quality evaluation model was established:SBE=40.661-39.581X6-2-48.041X6-3-16.735X7-2-11.518X7-3+20.608X8-2+11.953 X8₃+23.349X9₂+27.476X9₃-10.409X9-4-15.338X10-2-31.811X10-3+72.540X11-1+2.434 X11-2+13.746X15-2.The research showed that there was a big space to improve overall in-forest landscape quality on the area,and there were statistically significant differences in the landscape value of different forest stands.The results showed that landscape quality from superior to inferior arrangement was broad-leaved forest,coniferous forest,coniferous and broad-leaved mixed forest,bamboo and broad-leaved mixed forest.On the basis of the establishment of evaluation model,this paper put forward a feasible scheme of forest landscape reconstruction for different forests:the measures of stand tending,branch pruning and cultivation on cover plant could be taken to improve the uniformity of understory and reducing from the perspective of the litter and dead fallen tree in coniferous forest;the measures of branch pruning,cleaning and ultivation on cover plant could be taken to improve the uniformity of understory,reducing the hight of herb and increasing interest in broad-leaved forest;also we could increase interest in the way of stand tending,cleaning and cultivating cover plant;the scheme of mixed forest of bamboo and broad was forest clearing,tending and adding ground cover plants and the main measures for the improvement of bamboo forest are forest clearing,thinning and ground cover cultivation.