葉菜對Cd的富集特征及敏感性分布
發(fā)布時間：2018-07-15 08:51
【摘要】：為了解不同土壤中不同品種葉菜對Cd的吸收富集特征及敏感性分布規(guī)律,通過盆栽試驗研究了10種葉菜(油菜、空心菜、茼蒿、莧菜、菠菜、油麥菜、芹菜、生菜、韭菜、小白菜)在江西紅壤和天津潮土中,對不同處理Cd濃度[空白,0 mg/kg,CK;低濃度,0.3 mg/kg,C1;高濃度,0.6 mg/kg,C2]下對Cd的富集,并對Cd的富集系數(shù)進行了敏感性排序.結(jié)果表明:高濃度Cd會抑制葉菜生長,株高和鮮質(zhì)量顯著變化;低濃度Cd處理對葉菜的生長具有"刺激作用",大部分葉菜株高顯著上升.w(Cd)為0.3mg/kg時,在天津潮土中,油菜對Cd的富集系數(shù)最高為0.336,茼蒿的富集系數(shù)最低為0.014,芹菜的富集系數(shù)最低為0.022,得出油菜對不同濃度的Cd最敏感,芹菜和茼蒿較不敏感.在江西紅壤中,莧菜對Cd的富集系數(shù)最高為1.165,芹菜的富集系數(shù)最低為0.103,得出莧菜和油菜對不同濃度的Cd較敏感,芹菜較不敏感.因此,可在天津潮土中種植茼蒿和芹菜,在江西紅壤中種植芹菜,將茼蒿和芹菜作為不易吸收較高濃度Cd的葉菜品種.
[Abstract]:In order to understand the characteristics of CD uptake and accumulation and the distribution of sensitivity to CD in different varieties of leaf vegetables in different soils, ten leaf vegetables (rape, chrysanthemum, amaranth, spinach, greasy, celery, lettuce, leek) were studied by pot experiment. In Jiangxi red soil and Tianjin Chao soil, CD concentration in different treatments (0 mg / kg CK; 0.3 mg / kg C 1; 0 mg / kg C 2; 0 mg / kg C 2), and the sensitivity of CD enrichment coefficient were ranked. The results showed that the high concentration of CD inhibited the growth of leafy vegetables, and the plant height and fresh mass changed significantly, and the low concentration of CD had a "stimulating effect" on the growth of leafy vegetables. When the plant height of most leafy vegetables rose significantly. W (CD) was 0.3mg/kg, it was found in the fluvo-soil of Tianjin. The highest CD enrichment coefficient was 0.336 in rape, 0.014 in Chrysanthemum chrysanthemum and 0.022 in celery. The results showed that rape was most sensitive to CD at different concentrations, while celery and chrysanthemum were less sensitive. In Jiangxi red soil, the highest CD enrichment coefficient of amaranth was 1.165, and the lowest enrichment coefficient of celery was 0.103. It was concluded that amaranth and rapeseed were more sensitive to CD at different concentrations, while celery was less sensitive. Therefore, chrysanthemum and celery could be grown in Tianjin aquic soil, and celery could be grown in red soil of Jiangxi province. Chrysanthemum and celery could be used as leaf vegetable varieties which could not easily absorb high concentration of CD.
【作者單位】： 沈陽農(nóng)業(yè)大學(xué);農(nóng)業(yè)部環(huán)境保護科研監(jiān)測所;
【基金】：國家自然科學(xué)基金項目(41371463) 公益性行業(yè)(農(nóng)業(yè))科研專項(200903015)
【分類號】：X173;X53
[Abstract]:In order to understand the characteristics of CD uptake and accumulation and the distribution of sensitivity to CD in different varieties of leaf vegetables in different soils, ten leaf vegetables (rape, chrysanthemum, amaranth, spinach, greasy, celery, lettuce, leek) were studied by pot experiment. In Jiangxi red soil and Tianjin Chao soil, CD concentration in different treatments (0 mg / kg CK; 0.3 mg / kg C 1; 0 mg / kg C 2; 0 mg / kg C 2), and the sensitivity of CD enrichment coefficient were ranked. The results showed that the high concentration of CD inhibited the growth of leafy vegetables, and the plant height and fresh mass changed significantly, and the low concentration of CD had a "stimulating effect" on the growth of leafy vegetables. When the plant height of most leafy vegetables rose significantly. W (CD) was 0.3mg/kg, it was found in the fluvo-soil of Tianjin. The highest CD enrichment coefficient was 0.336 in rape, 0.014 in Chrysanthemum chrysanthemum and 0.022 in celery. The results showed that rape was most sensitive to CD at different concentrations, while celery and chrysanthemum were less sensitive. In Jiangxi red soil, the highest CD enrichment coefficient of amaranth was 1.165, and the lowest enrichment coefficient of celery was 0.103. It was concluded that amaranth and rapeseed were more sensitive to CD at different concentrations, while celery was less sensitive. Therefore, chrysanthemum and celery could be grown in Tianjin aquic soil, and celery could be grown in red soil of Jiangxi province. Chrysanthemum and celery could be used as leaf vegetable varieties which could not easily absorb high concentration of CD.
【作者單位】： 沈陽農(nóng)業(yè)大學(xué);農(nóng)業(yè)部環(huán)境保護科研監(jiān)測所;
【基金】：國家自然科學(xué)基金項目(41371463) 公益性行業(yè)(農(nóng)業(yè))科研專項(200903015)
【分類號】：X173;X53
【相似文獻】
相關(guān)期刊論文 前10條
1 陳青云;張晶;譚啟玲;孫學(xué)成;趙小虎;胡承孝;;4種磷肥對土壤-葉菜類蔬菜系統(tǒng)中鎘生物有效性的影響[J];華中農(nóng)業(yè)大學(xué)學(xué)報;2013年01期
2 秦麗娟;張伯堯;王萬雄;;蘭州市葉菜類蔬菜中重金屬含量及健康風(fēng)險分析[J];甘肅科學(xué)學(xué)報;2013年02期
3 唐文;吳穎;劉琰青;;蔬菜中鎘、鉛、鋅的含量及分布規(guī)律分析[J];長江蔬菜;2008年20期
4 劉會萍;洪春來;翁煥新;朱鳳香;陳曉e，
本文編號：2123515
本文鏈接：http://sikaile.net/shengtaihuanjingbaohulunwen/2123515.html
最近更新
教材專著
