一.抗旱整地 1.翼式鱼鳞坑整地。先进行鱼鳞坑整地,规格:长径80～100厘米,短径50厘米,土厚30～40厘米。将表土堆于坑的上方,心土放在坑下方。然后在鱼鳞坑的两侧坑角水平开挖长1米的积水槽,积水槽的断面为梯形,上口20厘米,下口10厘米,深20厘米,槽外沿不作埂,积水槽与鱼鳞坑内蓄水沟相连,将开槽表土放入鱼鳞坑,心土用于修筑鱼鳞坑外沿,坑面外比里高10厘米,形成蓄水沟。 2.二次整地。在花岗岩、片麻岩区土层较薄,达不到整地深度要求,具有风化半风化母质山地可采用二次整地。 在当年的秋冬至第二年3月雨雪后抢墒先在山坡上整浅坑,挖到硬母质不再刨挖,到6～7月份,浅坑内母质经过 A drought drought site 1. Wing-shaped fish-foot pit site preparation. The first scaly pit preparation, specifications: long diameter of 80 to 100 cm, 50 cm short diameter, soil thickness of 30 to 40 cm. Topsoil will be piled above the pit, heart and soil on the bottom of the pit. Then excavation in the pit pit on both sides of the pit angle of 1 meter long water tank, section of the trapezoidal trapezoidal plot, the mouth of 20 cm, the next mouth 10 cm, 20 cm deep, Pit connected to the reservoir, the slotted surface into the fish-scale pit, heart and soil for the construction of fish-scale pit outer edge, pit surface than the 10 cm high, the formation of water storage ditch. 2 second site preparation. In granite, gneiss area thin soil, less than the depth of field preparation requirements, weathered semi-weathered mother mountain can be used for secondary soil preparation. In the year of autumn and winter to the second year in March after the rain and snow grab the first shallow pit on the hillside, dug hard parent material is no longer dig, to 6-7 months, the shallow pits within the parent material after