土壤铬(Ⅲ)对植物生长及叶片反射光谱的影响研究
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摘要
以泰国空心菜为材料,采用盆栽试验研究了在土壤铬(Ⅲ)胁迫下空心菜生长、生理生化和铬(Ⅲ)吸收量及植物叶片光谱的变化规律,并建立叶片实测元素含量与叶片光谱特征参数之间的拟合关系,通过叶片光谱及其特征参数反演叶片金属元素含量。旨在阐明重金属铬(Ⅲ)对空心菜的毒害作用机理。结果表明,土壤铬(Ⅲ)浓度对泰国空心菜的生长表现为低浓度促进,高浓度抑制,随着土壤铬(III)浓度增大,泰国空心菜叶片含水率、叶片叶绿素a、b和a+b含量整体呈下降趋势;土壤中铬(Ⅲ)浓度在200 mg·kg-1左右对泰国空心菜的生长最有益,达到1500mg·kg-1时的毒害较为明显。
Water spinach, for materials,chromium in soil were studied using pot experiment under(Ⅲ)stress water spinach growth, physiological and biochemical and chromium(Ⅲ)uptake and plant leaves the change rule of the spectrum.And establish the leaf measured element content and leaf spectral fitting relation between the characteristic parameters, By leaf spectrum, and its characteristic parameters inversion metal elements content in leaf. To clarify the toxicity of heavy metal chromium in water convolvulus mechanism. The results showed that soil chromium concentration low concentrations on the growth and concentration high concentrations inhibition growth of water spinach in Thailand in the promotion. As soil chromium(Ⅲ)concentration increased, The water spinach leaf moisture content water spinach leaf chlorophyll a, b, a + b and content of the moisture content is on the decline as a whole. Chromium(Ⅲ) in soil around 200 mg·kg-1 concentration in the most beneficial influence on the growth of Thailand water spinach, up to 1500 mg·kg-1 of poisoning is more obvious.
Water spinach, for materials,chromium in soil were studied using pot experiment under(Ⅲ)stress water spinach growth, physiological and biochemical and chromium(Ⅲ)uptake and plant leaves the change rule of the spectrum.And establish the leaf measured element content and leaf spectral fitting relation between the characteristic parameters, By leaf spectrum, and its characteristic parameters inversion metal elements content in leaf. To clarify the toxicity of heavy metal chromium in water convolvulus mechanism. The results showed that soil chromium concentration low concentrations on the growth and concentration high concentrations inhibition growth of water spinach in Thailand in the promotion. As soil chromium(Ⅲ)concentration increased, The water spinach leaf moisture content water spinach leaf chlorophyll a, b, a + b and content of the moisture content is on the decline as a whole. Chromium(Ⅲ) in soil around 200 mg·kg-1 concentration in the most beneficial influence on the growth of Thailand water spinach, up to 1500 mg·kg-1 of poisoning is more obvious.
引文
[1]冉桂花.土壤重金属危害及修复措施研究[J].自然科学(全文版), 2016,(9):00164-00164.
[2]黄群慧,贺俊.“第三次工业革命”与中国经济发展战略调整--技术经济范式转变的视角[J].中国工业经济, 2013,(1):5-18.
[3]屠振密,郑剑,李宁,等.铬(Ⅲ)电镀铬现状及发展趋势[J].表面技术, 2007, 36(5):59-63.
[4]王坚坚,董新,林学敏,等.新型强碱性阴离子交换树脂处理含铬电镀废水的研究[J].电镀与环保, 2016, 36(6):55-56.
[5]牟建梅,张国芹,刘凤军,等.白菜叶绿素含量的测定方法筛选[J].江苏农业科学, 2014, 42(9):289-290.
[6]毕建武,贾进章,刘丹.基于SPSS多元回归分析的回采工作面瓦斯涌出量预测[J].安全与环境学报, 2013,(5):183-186.
[7]梁守真,施平,马万栋,等.植被叶片光谱及红边特征与叶片生化组分关系的分析[J].中国生态农业学报, 2010, 18(4):804-809.
[2]黄群慧,贺俊.“第三次工业革命”与中国经济发展战略调整--技术经济范式转变的视角[J].中国工业经济, 2013,(1):5-18.
[3]屠振密,郑剑,李宁,等.铬(Ⅲ)电镀铬现状及发展趋势[J].表面技术, 2007, 36(5):59-63.
[4]王坚坚,董新,林学敏,等.新型强碱性阴离子交换树脂处理含铬电镀废水的研究[J].电镀与环保, 2016, 36(6):55-56.
[5]牟建梅,张国芹,刘凤军,等.白菜叶绿素含量的测定方法筛选[J].江苏农业科学, 2014, 42(9):289-290.
[6]毕建武,贾进章,刘丹.基于SPSS多元回归分析的回采工作面瓦斯涌出量预测[J].安全与环境学报, 2013,(5):183-186.
[7]梁守真,施平,马万栋,等.植被叶片光谱及红边特征与叶片生化组分关系的分析[J].中国生态农业学报, 2010, 18(4):804-809.