| 土壤水分空间变异研究 |
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| 引用本文： | 吕雄杰,陆文龙,宋治文,张昱.土壤水分空间变异研究[J].安徽农业科学,2008,36(5):1999-2001. |
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| 作者姓名： | 吕雄杰 陆文龙 宋治文 张昱 |
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| 作者单位： | 天津市农业科学院信息研究所,天津,300192 |
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| 基金项目： | 天津市科技攻关计划重大科技工程项目(052HGCNC01800) |
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| 摘 要： | 以天津市静海县良种场内一块长约110 m,宽约40 m的冬小麦田作为试验区,采用规则格网采样,按照10 m×10 m设置格网,共设48个采样点,通过GPS手持机进行定位,分别于小麦越冬前、拔节期、灌浆期,利用便携式土壤湿度数据采集器对试验地各个采样点0～20、20～40 cm2种深度土壤含水量进行了测定,利用ARC/INFO的地统计分析模块绘制了冬小麦3个不同生育期试验区土壤水分空间分布图,并分析了其垂直和水平方向的空间变异特征,以期为确定最佳灌溉时机和灌溉量提供科学依据。
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| 关 键 词： | 冬小麦 土壤水分 空间变异 灌溉 |
| 文章编号： | 0517-6611（2008）05-01999-03 |
| 收稿时间： | 2007-10-22 |
| 修稿时间： | 2007年10月22 |
Study on Spatial Variability of Soil Water |
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| LV Xiong-jie.Study on Spatial Variability of Soil Water[J].Journal of Anhui Agricultural Sciences,2008,36(5):1999-2001. |
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| Authors: | LV Xiong-jie |
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| Abstract: | Taking a winter wheat field(4 400 m2) of Jinghai county seed farm as experimental plot,sampling by regular grid with with 10 m×10 m grids,48 sample points were oriented by GPS receipt machine to analyze soil water content at the depth of 0~20 and 20~40 cm in pri-winter,jointing stage and filling stage of winter wheat.The spatial distribution map of soil water of the winter wheat field using geostatistical analyst model of ARC/INFO was drew.And the spatial variability of soil water in vertical and horizontal direction was analyzed.The results could offer scientific evidence for the deciding of the exact time and quantity for winter irrigation. |
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| Keywords: | Winter wheat Soil water Spatial variability Irrigation |
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