| 摘要: |
| 【目的】通过选择四年生天然生长的红梅杏和安装降雨集流渗灌装置的红梅杏为研究对象。【方法】采取对比研究的方法，观测土壤含水量、地径、叶面积指数、地温等四个指标，研究评价同龄生红梅杏两种状况的生长差异。【结果】研究结果表明：安装降雨集流渗灌装置后，即使对于5.6mm的天然降雨也能直接输送到红梅杏的根部附近，使根部土壤含水量变化呈“台阶”型增加；地径年生长增幅是自然生长状况的1.2倍；叶面积指数安装降雨集流渗灌装置的较自然生长状况的大56.8%；地温比自然生长状况高3～5摄氏度。【结论】安装降雨集流渗灌装置后，可以解决红梅杏这样的深根系经济林缺水问题，在干旱、半干旱地区，也可以推广应用到其他深根系经济林上解决作物的干旱问题。 |
| 关键词: 降雨集流，红梅杏，渗灌，土壤含水量，地径 |
| DOI： |
| 分类号:TV |
| 基金项目: |
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| A Preliminary Study on the Irrigation Device for Natural Rainfall Collecting Flow of Red Plum Apricot |
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wangxudong, zhangweijiang
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School of Civil and Hydraulic Engineering, Ningxia University。
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| Abstract: |
| 【Objective】Four - year - old red plum apricot and four - year - old red plum apricot were selected as the research objects.【Method】By means of comparative study, four indexes were observed, including soil moisture content, ground diameter, leaf area index and ground temperature, to study and evaluate the growth differences of the two conditions of the same age.【Result】The results showed that after installing the rainfall-collecting infiltration irrigation device, the natural rainfall of 5.6mm could be directly transported to the root of the apricot, increasing the soil water content at the root. The annual growth rate of earth diameter is 1.2 times that of natural growth. Leaf area index (lai) was 56.8% higher than the natural growth rate for rain-collecting infiltration irrigation installations; The earth's temperature is 3 to 5 degrees Celsius higher than natural growth.【Conclusion】After installing rain-collecting irrigation device, it can solve the problem of water shortage in deep root economic forest such as red plum apricot, and can also be popularized and applied to other deep root economic forest in arid and semi-arid areas to solve the crop drought problem. |
| Key words: Rainfall collection, Red plum apricot, Infiltration irrigation, Soil moisture content, Ground diameter |
