本文關(guān)鍵詞： 鹽堿土壤 Kostiakov入滲模型參數(shù) 土壤傳輸函數(shù)法 非線性預(yù)報　出處：《人民黃河》2017年07期 　論文類型：期刊論文

【摘要】：為給鹽堿荒地改良提供技術(shù)支撐,以原生鹽堿荒地土壤為研究對象,進行了大田原位系列入滲試驗,獲取了累計入滲量與入滲歷時對應(yīng)關(guān)系的試驗資料,依據(jù)Kostiakov入滲模型,構(gòu)建了入滲模型參數(shù)與同步土壤理化參數(shù)的樣本集。利用土壤傳輸函數(shù)法,建立了以土壤基本理化參數(shù)為輸入變量的Kostiakov二參數(shù)入滲模型參數(shù)k和α的多元非線性預(yù)報模型。結(jié)果表明:以土壤含水率、干容重、黏粒含量、粉粒含量、有機質(zhì)含量、含鹽量為輸入變量對入滲系數(shù)k進行多元非線性預(yù)報和以土壤含水率、干容重、黏粒含量、有機質(zhì)含量、含鹽量為輸入變量對入滲指數(shù)α進行多元非線性預(yù)報是可行的,兩參數(shù)預(yù)報模型的相對誤差平均值分別為5.5%和8.3%。
[Abstract]:In order to provide technical support for the improvement of saline-alkali wasteland, a series of in-situ infiltration experiments in the field were carried out with the primary saline-alkali wasteland soil as the research object. The experimental data of the relationship between the cumulative infiltration amount and the infiltration duration were obtained, and the Kostiakov infiltration model was used. A sample set of infiltration model parameters and synchronous soil physical and chemical parameters was constructed. The multivariate nonlinear prediction model of infiltration model parameters k and 偽 of Kostiakov two-parameter infiltration model with basic soil physical and chemical parameters as input variable was established. The results showed that the soil moisture content, dry bulk density, clay content, silt content and organic matter content were used as parameters. It is feasible to predict the infiltration coefficient k by using the input variables of salt content as input variables, and with the input variables of soil moisture content, dry bulk density, clay content, organic matter content and salt content as input variables. The average relative error of the two parameter prediction models is 5.5% and 8.3 respectively.
【作者單位】： 太原理工大學水利科學與工程學院;
【基金】：國家自然科學基金資助項目(40671081) 山西省科技攻關(guān)項目(2007031070)
【分類號】：S152.7

【相似文獻】

相關(guān)期刊論文 前10條

1 白丹,李占斌;應(yīng)用遺傳算法擬合渾水入滲經(jīng)驗公式[J];農(nóng)業(yè)工程學報;2003年03期

2 張娟娟,劉恩民,鄭麗萍;土壤經(jīng)驗入滲指數(shù)的移動窗口統(tǒng)計特性[J];地下水;2004年03期

3 吳軍虎,費良軍,李懷恩;灌施條件下波涌灌溉土壤間歇入滲硝態(tài)氮運移特性試驗研究[J];灌溉排水學報;2004年05期

4 張雅楠;黃興法;毛麗麗;劉汗;;土壤入滲性能自動測量系統(tǒng)原理與應(yīng)用研究[J];農(nóng)業(yè)工程學報;2007年04期

5 張建豐;王文焰;賈中華;;具有砂質(zhì)夾層的土壤連續(xù)函數(shù)入滲模型[J];水土保持學報;2007年04期

6 盧修元;魏新平;邱s，

本文編號：1520751