| 灌水对沙地草场几种植物生长的影响 |
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| 引用本文： | 张铜会,赵哈林,常学礼,白户康人,大黑俊哉.灌水对沙地草场几种植物生长的影响[J].中国沙漠,1999,19(Z1):23-25. |
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| 作者姓名： | 张铜会 赵哈林 常学礼 白户康人 大黑俊哉 |
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| 作者单位： | 1. 中国科学院兰州沙漠研究所, 兰州 730000;2. 日本农业环境科学技术研究所 |
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| 基金项目： | 本文得到96-920-13-02、49890330、980121、KE-952-91-218、KE-95 T-04-01-04项目的资助 |
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| 摘 要： | 通过对0mm、50mm、100mm和150mm灌水量处理下的4种植物生长状况观测,50mm处理的地上和地下生物量都明显高于其它三个处理;灌溉对植物生长的影响主要是通过提高土壤含水量来实现的;五星蒿与鸡眼草一样,在适宜的土壤温度时,其生长速率大小与土壤湿度的关系较密切,虫实和猪毛菜的快速生长期都在前期,后期的灌水对他们生物量的形成没有什么作用。
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| 关 键 词： | 沙地草场 生物量 灌水量 |
Effect of Watering on the Growth of Several Grasses in Sandy Grassland |
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| ZHANG Tong-hui,ZHAO Ha-lin,CHANG Xue-li,Yasuhito SHIRATO,Toshiya OHKURO.Effect of Watering on the Growth of Several Grasses in Sandy Grassland[J].Journal of Desert Research,1999,19(Z1):23-25. |
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| Authors: | ZHANG Tong-hui ZHAO Ha-lin CHANG Xue-li Yasuhito SHIRATO Toshiya OHKURO |
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| Institution: | 1. Institute of Desert Research, Chinese Academy of Sciences, Lanzhou 730000, China;2. National Institute of Agro Environmental Sciences, Japan |
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| Abstract: | The experiment was designed for four watering treatments (0 mm, 50 mm, 100 mm and 150 mm). The grass height, soil temperature and soil moisture were investigated every 10 days from Jun. 14 to Sep.13. The results showed that the second treatment's biomass of both above ground and below ground was significantly higher than the other treatment's. Watering affected the grass growth through mainly increasing the soil moisture. Kummerowia stipulacea's and Salsola collina's growth rates were related to the soil mositure when there was a suitable temperature to allow grass growing. Corispermum dilutum's fast growth stage is from Jun. 14 to Jul. 14 and Bassia dasyphylla's from Jun.14 to Aug. 4, so after Jul.14 it is no use for Corispermum dilutum to form biomass even though watering, and the same as for Bassia dasyphylla after Aug. 3. |
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| Keywords: | Sandy grassland Biomass Irrigating water quota |
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