1) combined stress of elevated UV-B radiation and aci d rain
UV-B与酸雨复合胁迫
3) acid rain stress
酸雨胁迫
1.
Response of three varieties of rice seeds to the acid rain stress in the germination process;
3个品种水稻种子萌发对酸雨胁迫的响应
2.
The effect of acid rain stress on membrane protective system of spinach and the conservation of rare earth elements;
酸雨胁迫下,稀土元素对菠菜膜保护系统作用
3.
Research on the growth and photosynthesis of typical seedlings in subtropical regions under acid rain stress
酸雨胁迫对亚热带典型树种幼苗生长与光合作用的影响
4) ultraviolet-B (UV-B)stress
紫外辐射B(UV-B)胁迫
5) compound stress
复合胁迫
1.
Free proline trends during seedling stage of ten staple alfalfa varieties in Ningxia with NaCl and water compound stress;
NaCl水分复合胁迫下宁夏十种主栽苜蓿品种幼苗体内脯氨酸含量变化
2.
In this paper,the effect of the compound stress of Cu,Cd,Pb,Zn and As on the growth and the accumulation and the distribution of heavy metals in Juncus Effuses is researched by using soil cultures method.
盆栽试验结果表明:Cd、Pb、Cu、Zn、As 5种重金属复合胁迫对灯心草地上部生长有一定程度的抑制作用,在土壤环境质量二级标准上限值处灯心草地上部生物量减产9。
3.
The experiment was conducted to study the free proline content trends during seedling stage and give tentative evaluation about their capability to resist water and NaCl stress of five grass species in Ningxia with NaCl and water compound stress by using quadratic general rotary unitized of design.
运用二次通用旋转组合设计研究了宁夏5种主要禾本科牧草苗期在NaCl、水分复合胁迫下体内脯氨酸含量的变化,并对其抗盐、抗旱性进行了初步评价,结果表明:NaCl胁迫对各种禾本科牧草体内脯氨酸含量的主效应除湖南稷子对其体内脯氨酸含量表现为负效应外,其他种均表现为正效应,其单因素效应随NaCl和水分胁迫的增加,各种禾本科牧草体内脯氨酸均有增大的趋势;NaCl、水分2因素对各种禾本科牧草体内脯氨酸含量影响的交互效应不显著。
6) combined stress
复合胁迫
1.
Toxic harm of Hg~(2+)、Cd~(2+) and their combined stress on Elodea nuttallii.;
Hg~(2+)、Cd~(2+)及其复合胁迫对伊乐藻的毒害
2.
The response of defense enzyme and photosynthesis in rape seedling t o combined stress of elevated ultraviolet-B radiation (UV-B, 280～320nm) and a cid rain was studied under lab conditions.
采用水培试验方法研究了紫外辐射(UV-B,280～320nm)与酸雨(AR)单一和复合胁迫对油菜幼苗保护酶(CAT)及光合作用的影响。
3.
Effects of cadmium single and combined stress of cadmium and lead on chlorophyll content and photosynthetic characteristics of Ginkgo were studied in a pot under greenhouse conditions.
结果表明:(1)单一Cd和Cd、Pb的复合胁迫均可导致银杏ch la、ch l及叶绿素a/b值的显著下降。
补充资料：酸雨
| 酸雨 acid rain 含有硫和氮的酸性化合物、pH值小于5.6的雨 、雪和雾。正名为酸沉降。其来源主要是矿物燃料如煤、石油燃烧或某些工业生产释放的SO2和NOx排入大气中 ， 经历化学反应而形成硫酸或硝酸 ， 随降水降落地面 。大气中的NH3虽然为碱性气体，但是进入土壤亦起酸的作用。20世纪60年代，瑞典学者首先发现湖泊中鱼类减少或绝迹，成为死湖；其后，欧美一些国家和中国也发现森林衰亡、材料腐蚀和古石雕破坏 。这些主要是由酸雨造成的 。气态的SO2和NOx寿命在一周左右，它们随气流飘移上百、上千米，到达清洁无污染区，即能造成生态破坏。酸雨抑制土壤中有机物的分解和氮固定，淋洗与土壤粒子结合的钙 、 镁 、钾等营养元素 ，使土壤贫瘠化。酸雨通过土壤，造成地下水和地面水酸化，使饮用水含有害物质，影响人类健康。为制止酸雨的发展和消除此环境污染现象，必须设法减少SO2和NOx排放量。
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参考词条