摘要
通过测定窟区林地土壤水分入渗规律，证明窟区土壤水分入渗率较大，平均可达２ ｍｍ/ｍｉｎ。窟区林地浅层土壤水分的侧渗幅度不大，但土壤深层的侧渗幅度较大。不同灌水 量对土壤水分的下渗率有明显的影响，灌水量大的土壤水分下渗率大，灌水量小的土壤水分 下渗速率慢。在灌水后３０ｈ左右，水分可下渗到３００ｃｍ以下的土层。
The regular patterns of the soil water permeation of the woodland near by the caves of Mogao Grottoes in Dunhuang were studied. The results indicated t hat the rate of the soil water permeation was a mm per minute. The range of the water side permeation was not wide in the shallow soil, but it was wide in the d eep soil. The effect of water supply on soil water down permeation was obvious, . The rate of the water down permeation was high with a great quantity of water s upply, while it was low with a small quantity of water supply. The water could p ermeate down to the 300 cm deep of the soil after irrigation for about 30hs.
出处
《敦煌研究》
CSSCI
北大核心
2001年第3期172-177,共6页
Dunhuang Research
关键词
莫高窟林地
灌水量
土壤含水量
水分入渗规律
Mogao Grottoes
woodland water supply
soil water content
soil water permeation
