| Impact of different water-saving irrigation technologies on soil temperature of pear orchard |
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| DOI：10.7606/j.issn.1000-7601.2013.03.10 |
| Key Words: pear watet-saving irrigation soil temperature Bazhou of Xinjiang |
| Author Name | Affiliation | | LIU HongBo | Xinjiang Research Institute of Water Resources and Hydropower, Urumqi, Xinjiang 830049, China | | ZHANG Jianghui | Xinjiang Research Institute of Water Resources and Hydropower, Urumqi, Xinjiang 830049, China | | BAI Yungang | Xinjiang Research Institute of Water Resources and Hydropower, Urumqi, Xinjiang 830049, China | | ZHANG Shengjiang | Xinjiang Research Institute of Water Resources and Hydropower, Urumqi, Xinjiang 830049, China | | DING Ping | Xinjiang Research Institute of Water Resources and Hydropower, Urumqi, Xinjiang 830049, China |
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| Abstract: |
| In order to evaluate impact of different water-saving irrigation technology on soil temperature of pear or-chard, temperature diurnal variation and its variation patterns at different soil depth were analyzed by monitoring soil tem-perature under different irrigation techniques at Bazhou Irrigation Test Station of Xinjiang Uygur Autonomous Region. The study results showed at 5 cm soil depth, the loop, a small tube and microjet had average temperature increase of 2.3℃, 0.8℃and 1.5℃ respectively, compared to the eontrol(25.1℃). Among the all different treatments, 5 cm surface depth soil had the highest temperature increase, order of temperature increase using different irrigation techniques is an-nular tube>small pipe flow>ejecta>control.The maximum temperature difference are 5.5℃,5℃,5℃ and 4℃. Among all the different treatments in different
growth period, soil temperature showed the trend of inereased at first and then decreased. At surface 5 cm to 10 cm soil, temperature increasing range at flowering to fruiting period is larger than in other periods. Annular tube irrigation technique
gained the highest mean temperature value at different
growth stages of different depth of soil. Soil temperature showed differenee at different growth stages with small pipe flow and ejecta irriga-tion techniques. Compared to all the different irrigation techniques, control had the smallest mean soil temperature at different growth period of different soil depth. ln conclusion, the analysis showed that applications of all these water-saving irrigation technologies can improve geotemperature. |
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