【摘要】：中國(guó)東北典型黑土區(qū)是我國(guó)重要的商品糧生產(chǎn)基地,對(duì)我國(guó)糧食安全和國(guó)民經(jīng)濟(jì)的穩(wěn)定起到舉足輕重的作用。作為土壤退化的一種特殊形式,澇漬地嚴(yán)重影響著墾區(qū)的農(nóng)業(yè)生產(chǎn)。在東北典型黑土區(qū)坡面澇漬地及其周?chē)８刂胁荚O(shè)采樣點(diǎn),測(cè)定了土壤氧化還原性及相關(guān)指標(biāo),以揭示坡耕地澇漬土壤與其周?chē)N土壤化學(xué)性質(zhì)的差異,得出澇漬土壤所具有的特殊化學(xué)性狀。結(jié)果表明:澇漬土壤與耕種土壤化學(xué)性質(zhì)差異顯著。澇漬土壤屬于酸性土壤,pH值為5.53,顯著低于耕種土壤,有機(jī)質(zhì)含量較高,且越接近澇漬地中心土壤有機(jī)質(zhì)含量越高。澇漬土壤Eh顯著低于耕種土壤,空間變異范圍較大,但還沒(méi)有達(dá)到強(qiáng)度還原狀態(tài)。澇漬土壤在長(zhǎng)期淹水條件下,大量的Fe3+、一部分高價(jià)錳被迅速還原,與耕種土壤相比,澇漬土壤還原性物質(zhì)總量較高,高出20倍多,亞鐵含量高出12倍還多,二價(jià)錳含量高出約10倍。
[Abstract]:The typical black soil region in Northeast China is an important commodity grain production base in China, which plays an important role in the food security and the stability of the national economy. As a special form of soil degradation, waterlogging seriously affects agricultural production in reclamation areas. In order to reveal the difference of chemical properties of waterlogged soil in sloping farmland and its surrounding cultivated soil, the soil redox and related indexes were determined by setting sampling points in waterlogged land and its surrounding normal cultivated land in typical black soil area of Northeast China, in order to reveal the difference of chemical properties between waterlogged soil and its surrounding cultivated soil. The special chemical properties of waterlogged soil were obtained. The results showed that the chemical properties of waterlogged soil were significantly different from that of cultivated soil. The pH value of soil in waterlogged soil was 5.53, which was significantly lower than that in cultivated soil, and the content of organic matter was higher, and the more close to the center of waterlogging soil, the higher the content of organic matter. The Eh of waterlogged soil was significantly lower than that of cultivated soil, and the spatial variation range was large, but it had not reached the state of intensity reduction. Under the condition of long-term flooding, a large amount of Fe3 and some high value manganese were rapidly reduced. Compared with cultivated soil, the total amount of reductive material in waterlogged soil was 20 times higher than that in cultivated soil, and the content of ferrous iron was more than 12 times higher than that in cultivated soil. The content of divalent manganese is about 10 times higher.
【作者單位】： 北京師范大學(xué)地理學(xué)與遙感科學(xué)學(xué)院;中國(guó)科學(xué)院水利部水土保持研究所黃土高原土壤侵蝕與旱地農(nóng)業(yè)國(guó)家重點(diǎn)實(shí)驗(yàn)室;北京市一六五中學(xué);
【基金】：國(guó)家自然科學(xué)基金(41571259);國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(41530858) 中國(guó)科學(xué)院“西部之光”人才培養(yǎng)引進(jìn)計(jì)劃資助
【分類(lèi)號(hào)】：S153

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 曹富友;姚章村;孫振鵬;;話說(shuō)黑龍江“澇漬潛”與“鹽堿”及防治[J];水利天地;2007年05期

2 高蘭陽(yáng);李洪泉;陳濤;沈益新;任朝明;;植物對(duì)澇漬響應(yīng)的研究進(jìn)展[J];草業(yè)與畜牧;2010年02期

3 熊勤學(xué);;四湖地區(qū)暴雨后澇漬害遙感空間分析[J];湖北農(nóng)業(yè)科學(xué);2011年10期

4 朱建強(qiáng);劉會(huì)寧;耿顯波;;易引起地下水淺埋農(nóng)田澇漬的降水過(guò)程分析[J];灌溉排水學(xué)報(bào);2008年06期

5 艾天成;李方敏;臧波;周勝;;江漢平原湖積型澇漬地土壤化學(xué)環(huán)境及適宜性評(píng)價(jià)[J];長(zhǎng)江大學(xué)學(xué)報(bào)(自科版)農(nóng)學(xué)卷;2005年03期

6 劉章勇,武海龍;澇漬改良稻田優(yōu)化模式的生態(tài)經(jīng)濟(jì)效益比較研究[J];耕作與栽培;2003年01期

7 艾天成,李方敏,原雄人;江漢平原湖積型澇漬地土壤物理環(huán)境質(zhì)量評(píng)價(jià)[J];湖北農(nóng)學(xué)院學(xué)報(bào);2004年04期

8 王朝祥;;平原地區(qū)農(nóng)家桃園如何防澇漬死樹(shù)[J];果農(nóng)之友;2006年08期

9 陳卓良;水濕生經(jīng)濟(jì)植物開(kāi)發(fā)及澇漬地農(nóng)業(yè)模式研究[J];長(zhǎng)江流域資源與環(huán)境;1996年01期

10 姚章村;李偉;朱凱;;話說(shuō)“以稻治澇”與“打井治澇”[J];水利天地;2007年09期

相關(guān)會(huì)議論文 前1條

1 陳嶸峰;李陶;徐強(qiáng);陳學(xué)好;;高等植物澇漬脅迫的生理機(jī)制和遺傳改良[A];2008園藝學(xué)進(jìn)展（第八輯）——中國(guó)園藝學(xué)會(huì)第八屆青年學(xué)術(shù)討論會(huì)暨現(xiàn)代園藝論壇論文集[C];2008年

，

本文編號(hào)：2219189