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应用生态学报 ›› 1997, Vol. 8 ›› Issue (1): 26-30.

• 研究论文 • 上一篇    下一篇

长江中下游低丘不同开发模式的土壤改良效果

於凤安1, 彭镇华1, 江泽慧1, 吴立勋2, 刘立德3, 曾昭汉4   

  1. 1. 安徽农业大学, 合肥 230036;
    2. 湖南省林业科学院, 长沙 410007;
    3. 湖北省林业科学院, 武汉 430075;
    4. 江西吉安地区林科所, 吉安 330056
  • 收稿日期:1996-04-10 修回日期:1996-11-22 出版日期:1997-01-25 发布日期:1997-01-25
  • 基金资助:

    国家“八五”重点科技攻关项目“长江中下游低丘和滩地综合治理与开发研究”部分内容

Soil improvement effect of different management models on low hills in the lower and middle reaches of Yangtze River

Yu Fengan1, Peng Zhenhua1, Jiang Zehui1   

  1. Anhui Agricultural University, Hefei 230036
  • Received:1996-04-10 Revised:1996-11-22 Online:1997-01-25 Published:1997-01-25

摘要: 对长江中下游4个不同试点综合治理和开发模式的调查表明,综合治理和开发后,低丘植被覆盖率增加,水土流失和土壤侵蚀量降低,土壤容重下降,土壤含水率平均提高18.14%,土壤有机质、N、P、K含量均有提高.

关键词: 流域治理, 农林复合系统, 土壤肥力, 土壤侵蚀, 长江中下游, 低丘, 生物结皮, 全氮, 模拟放牧, 微生物生物量氮, 速效氮

Abstract: The investigation on different integrated management models in four experimental sites in the lower and middle reaches of Yangtze River shows that after integrated management, the plant coverage percentage is increased, soil erosion and soil bulk density are decreased, soil water content is increased, and the contents of organic matter and N, P and K are substantially improved.

Key words: River floodplain management, Agroforestry system, Soil fertility, Soil erosion, Low hills, The lower and middle reaches of Yangtze River, available nitrogen, biological soil crusts, simulated grazing, total nitrogen, microbial biomass nitrogen