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| 恩施州不同气候型旱地土壤肥力变化及肥力因子变异特征 | |
| 引用本文： | 赵书军,袁家富,毕庆文,梅东海,秦兴成,彭成林,熊又升,徐祥玉.恩施州不同气候型旱地土壤肥力变化及肥力因子变异特征[J].中国土壤与肥料,2008(2):15-18. |
| 作者姓名： | 赵书军 袁家富 毕庆文 梅东海 秦兴成 彭成林 熊又升 徐祥玉 |
| 作者单位： | 1. 湖北省农科院植保土肥研究所,湖北,武汉,430064 2. 武汉烟草集团(有限)公司,湖北,武汉,430051 3. 湖北省烟叶公司,湖北,武汉,430030 4. 湖北省烟草公司恩施州公司,湖北,恩施,445000 |
| 摘 要： | 分析了恩施州不同气候型旱地土壤肥力变化及肥力因子的变异特征。结果表明:(1)不同海拔带土壤类型随着海拔的上升和生物气候的变化而有规律地形成土壤垂直带谱;(2)随着海拔的升高,土壤pH值、速效磷含量保持相对的稳定,但土壤有机质、速效钾、碱解氮含量表现出明显的上升趋势;(3)土壤pH的变异最小,土壤有机质、碱解氮的变异次之,土壤速效磷和速效钾的变异系数明显大于其它3个土壤肥力因子;土壤速效磷和速效钾的变异系数表现出随着海拔的增加变异系数减小的趋势;(4)恩施州土壤肥力状况较20年前相比发生了明显的变化,尤其是土壤速效磷和碱解氮含量表现为明显的增加趋势。 |
| 关 键 词： | 气候型 土壤肥力 肥力因子 变异特征 |
| 文章编号： | 1673-6257(2008)02-0015-04 |
| 修稿时间： | 2007年2月13日 |
Soil fertility characteristics and their changing tendency of different climate upend soils in Enshi of Hubei |
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| ZHAO Shu-jun,YUAN Jia-fu,BI Qing-wen,MEI Dong-hai,QIN Xing-cheng,PENG Cheng-lin,XIONG You-sheng,XU Xiang-yu.Soil fertility characteristics and their changing tendency of different climate upend soils in Enshi of Hubei[J].Soil and Fertilizer Sciences in China,2008(2):15-18. | |
| Authors: | ZHAO Shu-jun YUAN Jia-fu BI Qing-wen MEI Dong-hai QIN Xing-cheng PENG Cheng-lin XIONG You-sheng XU Xiang-yu |
| Abstract: | In this paper,soil fertility characteristics of upland in Enshi,Hubei province were tested,and their changing tendency and fertility factor variation was analyzed.Results showed that,(1)Soil types are regularly distributed in vertical direction in enshi mountain area with the altitude and climate change.(2) Soil pH and available P are relatively stable,But soil organic matter,available K and available N are going up with he altitude increase.(3) the variation co-efficient(CV) of soil available P and K in different altitudes was much higher than that of soil pH,organic matter,and available N.(4) Soil fertility status in 2002 had taken place obvious changes compared with that in 1982 which was the year that the 2nd national soil survey was conducted,among which soil available P and N increased most obviously,while soil pH was rather stable. |
| Keywords: | climate type soil fertility fertility factor variation characteristic |
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