| Ziwuling forest lies Qingyang City in the eastern part of Gansu Province, Xi said, "long east", is located east longitude 106°45' - 108°45 'north latitude and 35°10' - 37°20' between,it streches across Huachi county,Heshui county.Ningxian county and Zhengning county.Since the foundation of new China great progerss has been made in barren hill greening project and we have accumulated rich experiences and some practical models.but because of various lacks in both policy and economic fund ,the benefit popularity of the project has not been so perfect mainly in eclology,economy and society.With the practcie of forests protection and environment protection and the project of"Returning barren farmland to foresty."In Longdong loess plateau,the problem between forestry protection and stock raising is a serious contradiction,which,severely affects our plan carried out .From 2003-2006, in Qingyang City, northern, central and southern areas of three pilot afforestation of barren hills and pioneer the use of local species of locust and the introduction of tetraploid locust tree to tree, with the introduction of local alfalfa and the United States after the golden alfalfa, rye grass , Tall fescue, Kentucky bluegrass, red clover and white clover as forage species, by more than three years of trial observations, comparative analysis, drew the following major conclusions:1,The "forest, grassland, livestock," integration, the three-effectiveness of both the afforestation of barren hills and new ideas..2,Adoption of a new forest technology - coppice close planting operations, the new tree - "hedge" shape, the new afforestation technology - "controlling high" pruning, a new philosophy - make full use of solar energy converted into bio-energy And explore a new model of reforestation, "tetraploid Locust + alfalfa" hedge-feed a new model Lin returning farmland to forest. The new model has the advantage of reforestation: (1) The trial showed that tetraploid locust has strong adaptability to drought, cold hardiness, fast-growing, cutting-resistant and easy to branches, closed early, renewable power, the effectiveness of protection, afforestation of barren hills and is a pioneer species, At the same time livestock food palatability, and nutrient-rich, high-quality feed of woody species. (2) After testing, in tetraploid locust and the general locust "hedge" zone between the intercropping types of forage, alfalfa especially after the golden performance of the best alfalfa. (3) the model can be very good to increase forest area, the protection of new plantations, the expansion of forest resources, increasing forest coverage rate to water and soil, water conservation, the purpose of improving the ecological environment; can also vigorously develop animal husbandry and promote economic Development and eco-virtuous circle, to become prosperous, Hing-lam to promote animal husbandry, agriculture, forestry, animal husbandry sustainable development. For "returning farmland to forest (grassland)," establishing a short-term ecological, economic and social benefits both the three models, at one stroke "win-win-win": improvement of the ecological environment, increase economic benefits, social benefits, good. (4) The model is a reforestation take into account the length of benefits, low investment, quick, good-effective and easy to promote. Suitable for in the eastern part of Gansu Province, northern Shaanxi, such as arid, semi-arid region of barren hills and wasteland to promote model. |
PDF Full Text Request