| 辛小桂,吴普特,汪有科,肖森.山地不同树龄枣园土壤水分状况研究[J].干旱地区农业研究,2012,30(3):85~89 |
| 山地不同树龄枣园土壤水分状况研究 |
| Study on soil water condition of mountain jujube yards of different growth years |
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| DOI：10.7606/j.issn.1000-7601.2012.03.15 |
| 中文关键词: 土壤水分状况 不同树龄枣园 灌溉 雨养 陕北山地 |
| 英文关键词:soil water conditon jujube orchards with different
growing years irrigation rain-fed hilly areas in Northem Shaanxi |
| 基金项目:国家科技支撑计划项目“西北生态脆弱区经济作物高效用水关键技术研究与示范”（2011BAD29B04） |
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| 中文摘要: |
| 为研究黄土高原梨枣林地土壤水分状况,利用TRIME管和洛阳铲对灌溉及雨养两种条件下不同种植年限(1a、4a、9a、12 a)的梨枣林0～160 cm、0～700 cm范围深度内土壤水分状况进行监测研究。研究结果显示:随着树龄增长梨枣林地土壤水分储量下降；灌溉梨枣林与雨养梨枣林相比,其主根系层0～160 cm土壤水分储量较高；现有灌溉定额条件下,灌溉梨枣林地根区平均土壤水分满足度仍然相对较低；旱作梨枣林随树龄增大,土壤干层的分布深度和土壤干燥化强度趋于增加。 |
| 英文摘要: |
| In order to study soil water condition of pear jujube trees in the loess plateau, the soil water in 0~160 cm and 0~700 cm ranges in depth for different cultivation years(1 a, 4 a, 9 a, 12 a) of pear jujube trees was moni-tored by TRIME tubes and Luoyang Spade under irrigated and rain-fed conditions. The results showed that: soil water re-tention(SWR)of pear jujube trees declined as the growth of age; Compared with that of rain-fed pear jujube trees, the SWR of primary root zone (0~160 cm) was higher under the condion of irrigation; With the existing irrigation quota, the average satisfying degree of root zone of pear jujube trees to soil water was relatively low under the condition of irriga-tion; The distribution depth of dried soil layer and soil desiccation intensity tended to inerease for rain-fed pear jujube trees with the increase of age. |
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