甘宁蒙陕退耕还林(草)中的适地适树问题

Issue on Preferential Species of Certain Soil in Re-afforestation Engineering of Gansu, Ningxia, Inner Mongolia and Shaanxi

通过对退耕还林工程中适地适树问题的探讨 ,我们认为在退耕还林 (草 )工程实施过程中一定要坚持适地适树 ,适地适树是造林中的一项基本原则。在退耕还林和造林过程中应该遵循生物气候带原则 ,演替前期植物种与演替后期植物种搭配 ,浅根系植物与深根系植物合理配置。植物种的选择应该坚持立地条件与生物学特性和生态学特性相适应 ;与地带性特点相适应 ;与降水条件和土壤水分条件相适应 ,做到“林水平衡” ;

Preferential Species on Certain Soil is a basic principle in afforestation, which must be insisted on in the engineering of returning crop plots to forestry and grassland. The principle of bio climate belt should be obey, plant species before and after succession should be arranged, and shallow rooted and deep rooted plants should be rationally distributed. In the selection of plant species the adaptability that must be considered include the bio ecological property of plant adaptable to stand habitat and to bio climate belt, to precipitation and to soil moisture situation, and also to the property of plant community evolution.