不同保墒措施对黄土丘陵区坡地枣园土壤温、湿度的影响

针对陕北地区水资源日趋紧张,雨水、灌溉水利用效率低下的现状,通过定位试验,研究了干旱条件下不同保墒措施对山地枣林土壤温、湿度及产量影响。结果表明：几种保墒措施的保水效果均较明显,在土壤含水量随时间变化的过程中,以B120（保水剂量为120 g/棵）、J2（秸秆覆盖量为2 kg/m2）及D（地膜覆盖）的效果最佳,平均土壤水分较对照CK高出25.4%、23.7%、18.1%。保水剂及秸秆施用量偏低或偏高都会影响其保水效果。地膜覆盖有升温的作用,而秸秆在高温时有降温效应。

Effect of Different Soil Moisture Conserving Ways on Soil Moisture and Soil Temperature in the Jujube Slope of Loess Hilly Region

Based on the situation of the growing shortage of water resources and the low use efficiency of rain water,the experiments are used to study soil moisture,temperature of upland jujube and jujube growth in different conserving ways in dry areas by location tests.The results indicate that the different conserving ways show better effect on soil moisture conservation,the effect of B12,j2,D are the best in the process of changes in soil water content with time and average soil moisture 25.4%,23.7%,18.1% higher ...