| 区域土壤水分监测点布设方式探讨 |
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| 引用本文： | 信秀丽,张佳宝,朱安宁.区域土壤水分监测点布设方式探讨[J].灌溉排水学报,2008,27(3). |
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| 作者姓名： | 信秀丽 张佳宝 朱安宁 |
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| 作者单位： | 1. 封丘农田生态系统国家试验站土壤与农业可持续发展国家重点实验室中国科学院南京土壤研究所,南京,210008;中国科学院研究生院,北京,100049
2. 封丘农田生态系统国家试验站土壤与农业可持续发展国家重点实验室中国科学院南京土壤研究所,南京,210008 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)
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国家高技术研究发展计划(863计划)
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中国科学院科研项目 |
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| 摘 要： | 试验在面积为32 km2的封丘潘店乡进行,共布设39个测点,采用烘干法测定土壤含水率来确定合理监测点,通过19次土壤水吸力的监测数据分析得到时间稳定点,并与传统均匀布点进行比较。结果表明,采用时间稳定点作为土壤水吸力的监测点,无论对于研究区平均土壤水吸力值的表征,还是对于其它未布设监测点区域土壤水吸力状况的预测,误差均小于传统的均匀布点方式。为今后墒情监测网的布设提供了一定的参考依据。
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| 关 键 词： | 土壤水吸力 监测点 时间稳定性 |
Sampling Strategy of Soil Water in Region |
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| XIN Xiu-li,ZHANG Jia-bao,ZHU An-ning.Sampling Strategy of Soil Water in Region[J].Journal of Irrigation and Drainage,2008,27(3). |
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| Authors: | XIN Xiu-li ZHANG Jia-bao ZHU An-ning |
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| Institution: | XIN Xiu-li1,2,ZHANG Jia-bao1,ZHU An-ning1(1.State Experimental Station of Agro-Ecosystem in Fengqiu,State Key Laboratory of Soil , Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China,2.Graduate School of the Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | The experiment was employed at Pandian village in Henan province,which the area was 32 km2.The rational number of soil moisture monitoring was determined by measuring soil water content.Soil water tension was measured 19 times from March 15,2004 to May 30,2004.Temporal stability of this property were valuated,and obtained the time-stable locations.Compared with traditional grid sampling scheme,the prediction errors by time-stable locations as soil matric potential monitoring sites were obviously smaller in ... |
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| Keywords: | soil water tension monitoring sites temporal stability |
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