本文主要研究内容
作者张浪,徐华勤,李林林,陈元伟,郑华斌,唐启源,唐剑武（2019）在《再生稻和双季稻田CH4排放对比研究》一文中研究指出：【目的】为了探索生态可持续的稻作模式,对比研究了长江中下游地区双季稻和再生稻稻作模式的产量潜力和CH4排放特征,以此为选取绿色、生态经济可持续的稻作模式提供科学依据。【方法】于2017—2018年依托湖南省益阳市大通湖区宏硕生态农业农机合作社科研基地,设置了双季稻和再生稻2种模式,对比分析了产量潜力、稻田生育期间CH4排放动态和稻田生态系统CH4季节性累积排放规律以及评估了单位产量稻田CH4排放。【结果】试验期间,从产量方面来看,双季稻早稻产量为7.37 t·hm-2,再生稻头季产量为8.84 t·hm-2,头季相比早稻增产19.95%。双季稻晚稻产量为6.82 t·hm-2,再生稻再生季产量为3.39 t·hm-2,再生季相比晚稻减产50.29%。综合两季,双季稻总产量为14.19 t·hm-2,再生稻总产量为12.22 t·hm-2;从生育期间CH4排放动态来看,双季稻在分蘖期和齐穗期左右排放较强峰值,再生稻除了在分蘖期和齐穗期有较强的排放以外,其在施用促芽肥时也出现了小峰值。但总体双季稻的排放范围(-0.06—1.30μmol·m-2·s-1)要高于再生稻的排放范围(-0.01—0.70μmol·m-2·s-1);从稻田CH4季节性累积排放来看,双季稻CH4累积排放要高于再生稻。再生稻头季累积排放范围在23.90—266.59kg·hm-2,再生季累积排放范围在0.00—46.14 kg·hm-2。双季稻早稻季节累积排放范围在为35.57—251.29 kg·hm-2,晚稻季节累积排放范围在为10.74—321.59 kg·hm-2。双季稻CH4季节累积排放A-B（两叶一心至分蘖后期）段>B-C（分蘖后期至齐穗期）段>C-D（齐穗期至成熟期）段,且全生育期双季稻累积排放达922.35 kg·hm-2。再生稻CH4累积排放B-C段>A-B段>C-D段,且全生育期CH4累积排放为609.74 kg·hm-2,即相比对照双季稻,再生稻CH4累积排放降低了33.89%;最后通过评估单位产量CH4排放可知,早稻单位产量CH4排放为0.069 kg·kg-1,头季单位产量CH4排放为0.062 kg·kg-1,头季相比早稻减少了10.14%;晚稻单位产量CH4排放为0.061 kg·kg-1,再生季单位产量CH4排放为0.018 kg·kg-1,再生季相比晚稻降低了70.49%。综合两季,双季稻单位产量CH4排放为0.065 kg·kg-1,再生稻单位产量CH4排放为0.050 kg·kg-1,再生稻相比双季稻降低了23.08%。【结论】从单位产量下CH4排放角度来看,在长江中下游双季稻的主产区扩大种植再生稻是为良策。
Abstract
【mu de 】wei le tan suo sheng tai ke chi xu de dao zuo mo shi ,dui bi yan jiu le chang jiang zhong xia you de ou shuang ji dao he zai sheng dao dao zuo mo shi de chan liang qian li he CH4pai fang te zheng ,yi ci wei shua qu lu se 、sheng tai jing ji ke chi xu de dao zuo mo shi di gong ke xue yi ju 。【fang fa 】yu 2017—2018nian yi tuo hu na sheng yi yang shi da tong hu ou hong shuo sheng tai nong ye nong ji ge zuo she ke yan ji de ,she zhi le shuang ji dao he zai sheng dao 2chong mo shi ,dui bi fen xi le chan liang qian li 、dao tian sheng yo ji jian CH4pai fang dong tai he dao tian sheng tai ji tong CH4ji jie xing lei ji pai fang gui lv yi ji ping gu le chan wei chan liang dao tian CH4pai fang 。【jie guo 】shi yan ji jian ,cong chan liang fang mian lai kan ,shuang ji dao zao dao chan liang wei 7.37 t·hm-2,zai sheng dao tou ji chan liang wei 8.84 t·hm-2,tou ji xiang bi zao dao zeng chan 19.95%。shuang ji dao wan dao chan liang wei 6.82 t·hm-2,zai sheng dao zai sheng ji chan liang wei 3.39 t·hm-2,zai sheng ji xiang bi wan dao jian chan 50.29%。zeng ge liang ji ,shuang ji dao zong chan liang wei 14.19 t·hm-2,zai sheng dao zong chan liang wei 12.22 t·hm-2;cong sheng yo ji jian CH4pai fang dong tai lai kan ,shuang ji dao zai fen nie ji he ji sui ji zuo you pai fang jiao jiang feng zhi ,zai sheng dao chu le zai fen nie ji he ji sui ji you jiao jiang de pai fang yi wai ,ji zai shi yong cu ya fei shi ye chu xian le xiao feng zhi 。dan zong ti shuang ji dao de pai fang fan wei (-0.06—1.30μmol·m-2·s-1)yao gao yu zai sheng dao de pai fang fan wei (-0.01—0.70μmol·m-2·s-1);cong dao tian CH4ji jie xing lei ji pai fang lai kan ,shuang ji dao CH4lei ji pai fang yao gao yu zai sheng dao 。zai sheng dao tou ji lei ji pai fang fan wei zai 23.90—266.59kg·hm-2,zai sheng ji lei ji pai fang fan wei zai 0.00—46.14 kg·hm-2。shuang ji dao zao dao ji jie lei ji pai fang fan wei zai wei 35.57—251.29 kg·hm-2,wan dao ji jie lei ji pai fang fan wei zai wei 10.74—321.59 kg·hm-2。shuang ji dao CH4ji jie lei ji pai fang A-B（liang xie yi xin zhi fen nie hou ji ）duan >B-C（fen nie hou ji zhi ji sui ji ）duan >C-D（ji sui ji zhi cheng shou ji ）duan ,ju quan sheng yo ji shuang ji dao lei ji pai fang da 922.35 kg·hm-2。zai sheng dao CH4lei ji pai fang B-Cduan >A-Bduan >C-Dduan ,ju quan sheng yo ji CH4lei ji pai fang wei 609.74 kg·hm-2,ji xiang bi dui zhao shuang ji dao ,zai sheng dao CH4lei ji pai fang jiang di le 33.89%;zui hou tong guo ping gu chan wei chan liang CH4pai fang ke zhi ,zao dao chan wei chan liang CH4pai fang wei 0.069 kg·kg-1,tou ji chan wei chan liang CH4pai fang wei 0.062 kg·kg-1,tou ji xiang bi zao dao jian shao le 10.14%;wan dao chan wei chan liang CH4pai fang wei 0.061 kg·kg-1,zai sheng ji chan wei chan liang CH4pai fang wei 0.018 kg·kg-1,zai sheng ji xiang bi wan dao jiang di le 70.49%。zeng ge liang ji ,shuang ji dao chan wei chan liang CH4pai fang wei 0.065 kg·kg-1,zai sheng dao chan wei chan liang CH4pai fang wei 0.050 kg·kg-1,zai sheng dao xiang bi shuang ji dao jiang di le 23.08%。【jie lun 】cong chan wei chan liang xia CH4pai fang jiao du lai kan ,zai chang jiang zhong xia you shuang ji dao de zhu chan ou kuo da chong zhi zai sheng dao shi wei liang ce 。
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论文作者分别是来自中国农业科学的张浪,徐华勤,李林林,陈元伟,郑华斌,唐启源,唐剑武，发表于刊物中国农业科学2019年12期论文，是一篇关于再生稻论文,双季稻论文,水稻产量论文,中国农业科学2019年12期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自中国农业科学2019年12期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：再生稻论文; 双季稻论文; 水稻产量论文; 中国农业科学2019年12期论文;