Study On The Sustainable Utilization Of Spuriopiminella Brachycarpa,Athyrium Multidentatum Under Forest In The Mountains Areas Of Eastern Liaoning Province

The state has put forward a series of measures,such as implementing natural forest protection project and stopping commercial logging of natural forests in Northeast China.Greater restrictions on the economic development of forest areas.Developing undergrowth economy(wild vegetable)is of great significance to solve the economic problems in forest areas.In this study,through the control of different harvesting methods and intensities of typical wild vegetable(Spuriopiminella brachycarpa and Athyrium multidentatum)in eastern Liaoning mountainous area,the methods of reproduction and sustainable utilization of wild vegetable under forest were explored in depth,which provided effective technical methods for the utilization of regional resources under forest and the economic development of forest areas.The main results are as follows:(1)Different harvesting methods(cutting and harvesting)significantly reduced Spuriopiminella brachycarpa height growth,biomass,seed yield and seedling quantity under two forest types(larch plantation and natural secondary forest),but significantly increased the seedling quantity under the forest;It was better to reduce the height growth,biomass,seed yield and number of seedlings and increase the number of germination seedlings.(2)Different harvesting methods significantly reduced the height growth,biomass,seed yield and spore propagation number of undergrowth larch artificial forest,but significantly increased the germination number of undergrowth larch undergrowth.It was better to reduce Athyrium multidentatum height growth,biomass,seed yield and spore propagation quantity and to increase the number of spore initiation seedlings.(3)With the increase of harvesting intensity and harvesting times,the growth amount of plant height,biomass,and fruiting amount of the Spuriopiminella brachycarpa in two types of forests(larch plantation and natural secondary forest)decreased significantly.25% harvest had the least effect on each index and 100% harvest had the greatest effect.(4)With the increase of harvesting intensity and harvesting times,the plant height growth,biomass and spore propagation seedling number of Athyrium multidentatum under larch forest all decreased significantly,with the smallest impact of 25% harvesting and the largest impact of 100% harvesting.(5)25%,50% and 75% harvesting increased the number of seedling initiation of Spuriopiminella brachycarpa and Athyrium multidentatum(except 75%2 harvesting).To sum up,the harvesting methods and intensity of underforest resources,such as Spuriopiminella brachycarpa and Athyrium multidentatum,should be scientifically and reasonably selected according to their biological characteristics,so as to ensure the sustainable utilization of resources.It is suggested that the harvest intensity should be controlled at 25% and not more than 50%.However,the harvesting method should be selected for the cover fern of Athyrium multidentatum,and the harvesting intensity should also be controlled at about 25%,not more than 50%.At the same time,it is not recommended to harvest 2 times.