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中国沙漠 ›› 2001, Vol. 21 ›› Issue (2): 213-216.

• 实验研究 • 上一篇    

半干旱荒漠草原带沙地果园覆草效应

尤万学, 张维军, 王耀鹏, 冯起勇, 王锦林, 常发军   

  1. 宁夏盐池机械化林场, 宁夏盐池 751500
  • 收稿日期:2000-07-01 修回日期:2000-12-29 出版日期:2001-06-20 发布日期:2001-06-20
  • 作者简介:尤万学(1965-),男(汉族),宁夏盐池县人,工程师,主要从事经济林栽培研究

Mulch Effect on Sandy Land Orchard in Semi-arid Desert Steppe

YOU Wan-xue, ZHANG Wei-lin, WANG Yao-peng, FENG Qi-yong, WANG Jin-lin, CHANG Fa-jun   

  1. Yanchi Power Forest Farm, Yanchi 751500, Ningxia, China
  • Received:2000-07-01 Revised:2000-12-29 Online:2001-06-20 Published:2001-06-20

摘要: 在半干旱荒漠草原带沙地,采用覆盖45t·hm-2的麦草,且保持覆草厚度 25cm,可以使在减少灌溉3次的情况下,增加果树产量6300 kg·hm-2,降低果树生产成本3000元·hm-2。覆草改变了土壤的解冻时间,将果树开花推后7d左右,增加了果树开花躲过晚霜的可能性,增强了果树生产的稳定性。在地处半干旱荒漠草原地带农牧交错地区用麦草覆盖是因地制宜、就地取材管理果园的经济方法,建议大量推广。

关键词: 半干旱沙地, 荒漠草原, 果园, 覆草

Abstract: The experiment of surface mulch at sandy land orchard in semi-arid desert steppe showed that: ①mulching dry wheat straw with thickness of 25 cm(45t·hm-2) reduced the cost of fruit production about 3000 Yuan. hm-2, and increased yield of fruit about 6300 kg·hm-2 under the condition of three times irrigation minus during growing season compared with orchard without mulching;②mulching also altered the soil thawing time, which can postpone the tree flowering about 7 days. This alternative can decrease effectively the probability of tree flower being freezingly injured (May 1, usually), as a result the stability of orchard production can be improved. Therefore, surface mulch is recommended to be used extensively in the management of orchard in semi-arid sandy land.

Key words: semi-arid sandy land, desert steppe, orchard, surface mulch

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