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涉县在退耕还林实践中,依据本地自然条件和生产实践,选择推广了核桃——苜蓿、核桃——核桃苗、核桃——金银花、核桃——芦笋、核桃——花椒五种退耕还林间作模式,实现了生态经济效益双赢,开创了涉县退耕还林新局面。一、立地条件涉县属太行深山区,气候干旱,年降雨量500mm 左右,且分布不均,春旱严重,7—9月份降雨量占全年70%。退耕地多选在坡脚和坡中部坡度小于25度的三圈地,土壤多为石灰性褐土。根
In the practice of returning farmland to forestry, Shexian County chose to popularize five kinds of returning farmland to forestry, namely walnut - alfalfa, walnut - walnut seedlings, walnut - honeysuckle, walnut - asparagus, walnut - pepper according to local natural conditions and production practices Intercropping mode, to achieve a win-win ecological and economic benefits, creating a new situation of returning farmland to forestry in Shexian County. First, the site conditions Shexian County is Taihang deep mountainous area, arid climate, annual rainfall of about 500mm, and uneven distribution, severe drought, July-September rainfall accounted for 70% of the year. Land reclamation more than at the foot of the slope and the slope of the middle slope of less than 25 degrees of the three laps, most of the soil is calcareous cinnamon soil. root