查询词典 drought

Drought and salination are the key factor of environmental crisis. So the research on the halo-tolerant gene engineering will play extreme important function for the alteration to the salination of soil.

盐碱化是导致我国环境危机的重要因素之一，利用基因工程培育抗旱耐盐品种已成为解决我国盐碱化日益严重问题的一条重要途径。

Soil ecological degradation can be defined as the process and phenomenon of a series of deterioration of soil ecological environment such as structural destruction and functional recession of soil ecosystem, decrease of soil biodiversity and productivity, dcsertification, drought, hardness, acidification and salination of soils, deficit and unbalance of soil nutrients, and loss of soil and water, resulting from human activities and adverse natural environmental conditions.

土壤生态退化是指由于人类活动及恶劣的自然环境条件作用或二者共同作用下造成的土壤生态系统结构破坏、系统功能衰退、土壤生物多样性减少、土壤生产力下降以及土壤荒漠化、干旱化、板结化、酸化、盐碱化和养分亏缺与失衡等一系列土壤生态环境恶化的过程和现象。

A mass of experiments validated that exploitation and rational utilization of saline shallow groundwater, declining the water level to an optimal depth to reducing water invalid evaporation can increase amount of water resources and storage capacity of aquifer, prevent waterlogging or drought, improve groundwater salinity and control the process of soil salination, improve the eco-environment, alleviate the threat for the resource of fresh water.

大量的实验证明，合理开发利用浅层咸水，使咸水水位降低到合理水平，可以：避免地下水的无效蒸发，增加水资源量；增强调蓄能力和抗早防涝能力；促进浅层咸水淡化，改造盐碱地，改善生态环境；减轻对淡水资源的威胁。

Firstly, influenced by climate, topographical feature, soil and hydrological and geographical features, there was drought, flood, salinification, desertification and barren in Daxing, biological protection is necessary as a protective barrier to control sand from Yong Dinghe River bed Secondly, the windbreak system has features of urban forestry with aesthetic character and reasonable forest structure and arrangement.

首先，受气候、地貌、土壤和水文地质等多种因素制约，旱、涝、碱、沙、瘠等自然灾害普遍存在，防护林体系的生态环境保护作用应当得到充分体现，要成为首都&南大门&的生态屏障保护及永定河沙地的风沙源控制带。其次，要体现大城市城郊防护林体系的建设特点，布局合理，结构合理，具有一定的风景美学价值。

Therefore, as viewed from physiological characteristics, Salix gordejevii exhibits adaptive characteristics of drought too.

因此，在生理特性上，黄柳亦表现出了对沙地干旱环境的适应特性。

Among 10 sampling plots selected,only Sophora alopecuroides, a plant with strong drought resistance grown on the top of the dune,only two accompanying species,such as Salsola ruthenica and Leymus secalinus occurred.

选择的10块样地中，只有耐旱能力很强的苦豆子生长在含水量较少的沙丘项部，主要伴生种只有沙蓬和赖草，赖草、沙蒿、猫头刺和柠条6块样地均分布在水分条件相对较好的沙平地，主要伴生种有10种。

Low-level, drought-related skirmishing is especially likely in areas of small-arms proliferation, such as the Horn of Africa; and in areas where other, like Christian-Muslim tension, also exist.

这种低水平的、与干旱相关的小规模冲突特别容易发生在那些轻武器泛滥成灾的地区，比如&非洲之角&索马里；又或者是基督徒与穆斯林之间摩擦抵牾的敏感地带。

Low-level, drought-related skirmishing is especially likely in areas of small-arms proliferation, such as the Horn of Africa; and in areas where other fault-lines , like Christian-Muslim tension, also exist.

这种低水平的、与干旱相关的小规模冲突特别容易发生在那些轻武器泛滥成灾的地区，比如&非洲之角&索马里；又或者是基督徒与穆斯林之间摩擦抵牾的敏感地带。

The details is described below: mixed with water and evenly atomized, 30-60g/mou for seedling, flowering and fruiting stages of apple, pear, grape, orange, banana, and longan; mixed with water and evenly atomized, 30-50g/mu for seedling, flowering and fruit growth stages of vegetables, like chili and solanaceous fruit and gourd; 30-60g/mu for cotton seedling, flower bud, boll, boll opening and yield stage, mixed with water and evenly atomized, 26-32 days of drought resistance period.

干旱、半干旱、干热风胁迫条件下，&ASA&高效植物保水剂在苹果、梨、葡萄、柑桔、香蕉、龙眼等果树和蔬菜的各个生育时期均可使用，具体为：苹果、梨、葡萄、柑桔、香蕉、龙眼苗期、花期、挂果期用量为30～60g/亩，兑水均匀喷雾；蔬菜如辣椒茄果类、瓜类等苗期、扬花期、果实膨大期亩用量30～50g，兑水均匀喷雾；棉花苗期、蕾期、铃期、吐絮收花期用量30～60g/亩，兑水均匀喷雾，防旱期26～32天。

Sequence analysis and homology alignment showed that MD1 had 93% similarity with matK in maize chloroplast genome, a gene encoding maturase included in type Ⅱ intron splicing of RNA transcript; MD2 had 99% similarity with gene PP2C, encoding serine / threonine protein phosphatase type 2C in extremely drought tolerant Sporobolus stapfianus; and MD3 had 99% similarity with rice gene encoding metacaspase, belonging to aspartic acid specific cysteine caspases.

序列分析和同源性比对表明，MD1与玉米叶绿体基因组中编码参与RNA转录本Ⅱ型内含子剪切的成熟酶的matK基因有93%的相似性，MD2与极端耐旱的Sporobolus stapfianus的丝氨酸／苏氨酸2C型蛋白磷酸酶基因PP2C的相似性达99%，MD3与属天冬氨酸特异性半胱氨酸蛋白酶类的水稻metacaspase基因有99%的相似性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。