The Development And Utilization Of Idesia Polycarpa Maxim In Rocky Desertification Area Of Ecological Restoration And Reconstruction

Chongqing karst rocky desertification area is a typical fragile ecological area, the ecological environment by their own conditions and external factors, there are many ecological crisis:such as soil erosion, drought and flood disasters, can reduce the area of arable land, soil quality deterioration, land degradation, biodiversity reduction, regional poverty. Therefore, to carry out the stone desertification area of governance in this region is a pressing matter of the moment. This research take the Chongqing karst rocky desertification Mountain--Chongqing city in zhongliang as the background, on the basis of rocky desertification area of the fragile ecological environment characteristics, combined with the rocky desertification vegetation restoration and reconstruction in the governance process of the principles and requirements, selection of biological characteristics of strong adaptability, positive for the fast-growing, barren, drought resistance suitable for Karst rocky desertification Region planting native plant Idesia pioneer as the research content, the Experimental Zone under different site conditions and cultivation experiment, analysis of the vegetation restoration and reconstruction of ecological adaptability, survival rate, plant growth, phenological period, and discusses the Idesia polycarpa maxim in stone desertification area of afforestation mode at the same time, it introduces and analyzes the development and utilization status and Prospect of Idesia polycarpa maxim, with period for stone desertification governance tree seed bank and the theory and practice of technical support.Through the comprehensive analysis of previous research results and the field observation, the preliminary summary at Tung ecological suitable growth environment based on the comparative analysis of Chongqing, karst rocky desertification region of the natural elements, derived as a native plant Idesia polycarpa Maxim fits perfectly in Chongqing karst rocky desertification area of growth, therefore can be selected as pioneer plant in rocky desertification area of ecological restoration and reconstruction of management.In the experimental area, on the basis of the plantation site factor (such as slope, soil thickness and so on), afforestation plots is divided into upper, middle, lower three categories, respectively, in three different position of slope cultivation, lower slope position using Idesia polycarpa and Ficus superba var. japonica forest cultivation. From the test results can be seen. In the stone desertification area of Idesia polycarpa Maxim can survive, and biological growth basically reached the normal index; under different site conditions, the position of slope soil fertility condition, thickness of soil, water, light combination has the obvious difference, the introduction and cultivation of Idesia polycarpa results are also different:the central comprehensive site conditions better, the growth condition of Idesia also preferably; upper secondary comprehensive site conditions, its survival and growth of Idesia center; the lower soil development is the worst, and Ficus superba var. japonica forest cover, the growth of the worst. Therefore, in the stone desertification area of Idesia introduction to improve comprehensive site conditions or suitable cultivation. At the same time, also need to pay attention to that, although drought resistant Idesia itself, but in the karst rocky desertification in the special environment, especially the extreme high temperature drought events, Idesia polycarpa maxim in survival rate and growth of such areas are subject to different degrees of stress, thus to strengthen the extreme conditions of cultivation and management.The article also explores the Idesia polycarpa Maxim from the seeds of the acquisition and storage, site selection and processing, seeding time, seedling management and pest control and seedling cultivation technology; and also specific analysis and introduction to build mixed forest consisting mainly of Idesia polycarpa afforestation, afforestation pattern and planting process should pay attention to the problem.Development and utilization value of Idesia huge:in the edible oil is of high yield and good quality of woody oil tree species, the seeds and pulp are oil, and high oil content. Idesia oil refined can then be used as edible oil, high content of unsaturated fatty acids in edible, also has the health care function; on the other hand, Idesia oil or preparation of biological energy and important raw materials, by refining can be converted to the excellent performance of the biodiesel, and currently is superior to other materials prepared by biological diesel oil. The fruit can be used as medicine and Idesia medical effect; or an excellent city ornamental trees, excellent timber species; in the industry as raw materials a wide range of uses; at the same time, Idesia with fast-growing, water conservation, and soil conservation ability, using its fast-growing, developed root system characteristics, can realize the function of soil and water conservation. Make full use of mountain resources, the development of Idesia polycarpa plant resources, can effectively will retreat return n cultivated land forest, city greening, ecological restoration, biomass energy development and farmer to add close combine, kill two birds with one stone, its comprehensive development and utilization prospects of great.