【摘要】：本文介紹了基于土壤初始含水量和時(shí)段每日平均降水量所建立的移動(dòng)統(tǒng)計(jì)法土壤墑情診斷模型的原理和建模方法,并應(yīng)用7個(gè)省23個(gè)縣87個(gè)監(jiān)測(cè)點(diǎn)2012—2014年的數(shù)據(jù)建模,應(yīng)用2015年的數(shù)據(jù)進(jìn)行了驗(yàn)證。移動(dòng)統(tǒng)計(jì)法墑情診斷模型分為時(shí)段模型和逐日模型。結(jié)果表明:時(shí)段模型預(yù)測(cè)的合格率為90%左右,逐日模型預(yù)測(cè)的合格率為70%左右;時(shí)段模型優(yōu)于逐日模型。移動(dòng)統(tǒng)計(jì)法模型單獨(dú)作為墑情診斷模型,使用時(shí)需要進(jìn)一步完善,可以在土壤初始含水量分段的基礎(chǔ)上應(yīng)用其他5個(gè)獨(dú)立模型進(jìn)行嘗試。
[Abstract]:In this paper, the principle and modeling method of moving statistical soil moisture diagnostic model based on initial soil moisture content and average daily precipitation in time period are introduced, and the data modeling of 87 monitoring points in 23 counties of 7 provinces from 2012 to 2014 is applied. The data for 2015 were applied to verify. The moisture diagnosis model of moving statistical method is divided into time period model and daily model. The results show that the qualified rate of the model is about 90% and that of the daily model is about 70%, and the model is superior to the daily model. The model of moving statistical method is used as the diagnosis model of soil moisture, which needs to be further improved, and the other five independent models can be used on the basis of the initial soil moisture content segmentation.
【作者單位】： 農(nóng)業(yè)部環(huán)境保護(hù)科研監(jiān)測(cè)所;北部灣環(huán)境演變與資源利用教育部重點(diǎn)實(shí)驗(yàn)室(廣西師范學(xué)院)廣西地表過程與智能模擬重點(diǎn)實(shí)驗(yàn)室(廣西師范學(xué)院);
【基金】：天津市科技支撐計(jì)劃(15ZCZDNC00700) “中國(guó)農(nóng)業(yè)科學(xué)院科技創(chuàng)新工程”(2016-cxgc-hyl) 廣西科技開發(fā)項(xiàng)目(14125008-2-24) 全國(guó)農(nóng)業(yè)技術(shù)推廣中心節(jié)水處項(xiàng)目(2016-hx-hyl-5)資助
【分類號(hào)】：S152.7
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本文編號(hào)：2359400