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生态学杂志 ›› 1996, Vol. ›› Issue (3): 70-72.

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沈阳地区水灾后“被淤”农田土壤肥力状况及改良途径

卢明远1, 杨玉兰1, 郭秀银1, 梁文举1, 刘焕然1, 李莹1, 李放2, 王永宝3   

  1. 1. 中国科学院沈阳应用生态研究所, 110015;
    2. 沈阳市东陵区农林局, 110015;
    3. 沈阳市苏家屯区十里河镇政府, 110107
  • 收稿日期:1996-02-01 修回日期:1996-03-04 出版日期:1996-06-10

Soil Fertility of Warped Farmland and its Ameliorative Measures after Flood in Shengyang Region

Lu Mingyuan1, Yang Yulan1, Guo Xiuyin1, Liang Wenju1, Liu Huanran1, Li Ying1, Li fang2, Wang Yongbao3   

  1. 1. Institute of Applied Ecology, Academia Sinica, Shenyang 110015;
    2. Dongling agroforestry bureau of Shenyang, 110015;
    3. Shilihe Town Government, Sujiatun District, Shenyang 110107
  • Received:1996-02-01 Revised:1996-03-04 Online:1996-06-10

关键词: 生物结皮, 生物量, 土壤质地, 土壤可蚀性

Abstract: From July to August, 1995, the biggest flooding in the a century occared in Shenyang region and thousands ha of farmland was damaged or warped. Average thickness of silting layer ranged from 20 to 40 cm. The contents of total N,total P, available N, available P, and available K within 0~60cm of warped farmland increased distictly. The micronutrient contents of B, Cu, Zn,Fe, and Mn increased by 200%~600%, and did not exceed the standard. Except that the bulk density of soil was on the high side and unsuitable for crop growth, other soil physical properties changed very little. If the requiste ameliorative measures are taken, the soil fertility of warped farmland would be superior to that of the normal farmland.

Key words: biological soil crust, biomass, soil texture, soil erodibility.

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