对泾源县特色林木种苗产业发展的现状做了详尽的阐述,对存在的问题进行分析,并对种苗产业今后的发展提出了具体可行的对策.对于促进泾源县特色林未种苗产业的持续发展具有一定的指导参考意义.
This paper describes the water balance theory and its application in the determination of forest coverage,the construction of planted vegetation,water-saving irrigation and runoff forest.The existing problems in doing so were pointed out.
六盘山位于宁夏固原市南部,是我国工黄土高原具有代表性的天然次生林区,素有"黄土高原明珠"之称,其天然林对周边地区涵养水源,调节气候,改善生态环境之功效是巨大的华山松是六盘山林区主要天然次生乔木树种之一,目前,六盘山区的天然华山松针阔混交林约0.2万hm2,华山松纯林接近0.13万hm2.
