XING Pei-ru,ZHENG Fen-li,WANG Bin.Spatial Distribution of Soil Alkaline Phosphatase Activity and Soil Organic Matter on Sloping Farmlands in Typical Black Soil Region[J].Research of Soil and Water Conservation,2014,21(01):39-42.
典型黑土区坡耕地土壤碱性磷酸酶和有机质空间分布研究
- Title:
- Spatial Distribution of Soil Alkaline Phosphatase Activity and Soil Organic Matter on Sloping Farmlands in Typical Black Soil Region
- Keywords:
- cropland in typical black soil region; soil alkaline phosphatase; soil organic matter; soil erosion; spatial distribution
- 分类号:
- S158
- 摘要:
- 以东北黑土侵蚀严重区宾州河流域为研究区，通过采集流域上游、中游和下游6个典型坡面及各坡面不同坡位的土壤样品，分析坡耕地土壤碱性磷酸酶和土壤有机质在流域和坡面尺度的空间分布特征及其与土壤侵蚀的关系。结果表明，在流域尺度上，坡耕地土壤碱性磷酸酶活性和土壤有机质含量均表现为下游 > 中游 > 上游，坡面尺度上总体表现为坡面上部 < 坡面中部 < 坡面下部的趋势，且坡位对土壤有机质分布的影响较其对土壤碱性磷酸酶活性的影响更为明显。土壤碱性磷酸酶活性与土壤有机质间存在极显著的正相关关系。流域土壤碱性磷酸酶活性和有机质空间分布与土壤侵蚀空间分布相对应，反映出土壤侵蚀是影响该区耕层土壤碱性磷酸酶活性和土壤有机质含量的主要因素。
- Abstract:
- Soil samples in different positions of slope in the upper, middle and down stream of Binzhou river basin were collected to analyze the spatial distribution of soil alkaline phosphatase and soil organic matter, as well as effects of soil erosion on them. The results showed that soil alkaline phosphatase and soil organic matter ranked as down stream > middle stream > upper stream at watershed scale. Soil alkaline phosphatase and soil organic matter in the different slope positions followed the order of top slope < the middle slope < down slope, slope position played more important role in the distribution of soil organic matter than that in soil alkaline phosphatase. There was a significant positive correlation between soil alkaline phosphatase and soil organic matter. The spatial distribution of soil alkaline phosphatase activity and soil organic matter was corresponding to soil erosion, suggesting that soil erosion was the key factor governing spatial distribution of soil alkaline phosphatase and soil organic matter in Binzhou river basin.
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备注/Memo
收稿日期:2013-04-08;改回日期:2013-05-09。
基金项目:国家973计划项目（2007CB407201）
作者简介:邢培茹(1984-),女,陕西凤县人,硕士研究生,研究方向:土壤侵蚀。E-mail:xingpeiru@126.com
通讯作者:郑粉莉(1960-)女,陕西蓝田人,教授,博士生导师,主要从事土壤侵蚀过程、预报和土壤侵蚀环境效应评价研究。E-mail:flzh@ms.iswc.ac.cn