semiarid

简明释义

英[ˌsemɪˈærɪd]美[ˌsemiˈærɪd]

adj. 半干旱的；雨量非常少的

英英释义

单词用法

同义词

反义词

例句

1.The afforestation in arid and semiarid is restricted by water condition.

干旱区和半干旱区的造林主要受水分条件的限制。

2.As a kind of special soil, aeolian sandy soil mainly lies in arid and semiarid areas where sand drift activity is very strong.

沙土是存在于干旱、半干旱地区的一种特殊性土，其岩土工程性质与风沙环境紧密相关。

3.The chemical laboratory of the Semiarid Prairie Agricultural Research Centre of Canada is very influential in western Canada.

加拿大半干旱草原农业研究站化学实验室在加拿大西部很有影响。

4.Soil erosion by wind is a major cause of farmland degradation in arid and semiarid area of north China.

土壤风蚀是中国北方干旱半干旱地区农田土地退化的重要原因。

5.Cereal production is the most basic function of cropland, particularly important over semiarid areas.

粮食生产功能是耕地最基本的功能，在半干旱区有着特殊的重要性。

6.In arid and semiarid regions, on the other hand, the small number of lakes and the great distances between them reduce the possibilities for correlation.

另一方面，在干旱和半干旱地区，湖泊数量少，湖泊之间距离远，减少了相互关联的可能性。

7.Aeolian sandy soil is a kind of specific soil formed in arid or semiarid area.

风沙土是形成于干旱区、半干旱区的一种特殊性质的土。

8.Shortage of water resources restricted agricultural production in arid and semiarid region.

水资源紧缺限制了干旱半干旱地区农业生产。

9.The raising of livestock is a major economic activity in semiarid lands, where grasses are generally the dominant type of natural vegetation.

在半干旱地区，草地通常是最主要的天然植被，而该地区主要的经济活动是家畜饲养。

10.The region is classified as semiarid, which means it receives limited rainfall throughout the year.

该地区被分类为半干旱，这意味着它全年降水量有限。

11.Farmers in semiarid areas often use drought-resistant crops to cope with water scarcity.

在半干旱地区的农民通常使用耐旱作物来应对水资源短缺。

12.The semiarid climate can lead to challenges in agriculture due to inconsistent rainfall.

由于降水不稳定，半干旱气候可能给农业带来挑战。

13.In semiarid regions, irrigation is often necessary to maintain crop yields.

在半干旱地区，灌溉通常是维持作物产量所必需的。

14.Wildlife in semiarid habitats has adapted to survive on minimal water resources.

生活在半干旱栖息地的野生动物已适应在最小水资源下生存。

作文

In the world of geography, different regions exhibit various climates that significantly affect their ecosystems and human activities. One such climate is known as semiarid, which refers to areas that receive limited rainfall, typically between 10 to 20 inches annually. These regions are characterized by dry conditions, yet they are not completely barren; instead, they often support a unique array of flora and fauna adapted to survive in such environments. Understanding the semiarid climate is crucial, especially in the context of agriculture, water management, and environmental conservation. The semiarid regions are often found on the fringes of deserts or in the interior of continents. For instance, parts of the southwestern United States, such as Arizona and New Mexico, experience semiarid conditions. These areas face challenges related to water scarcity, which can impact agricultural productivity. Farmers in semiarid regions must employ innovative irrigation techniques and select drought-resistant crops to sustain their livelihoods. The adaptation strategies used by these farmers highlight the resilience of communities living in semiarid environments. Moreover, the ecosystem in semiarid regions is fascinating. The vegetation typically consists of shrubs, grasses, and scattered trees that have developed deep root systems to access underground water sources. This unique plant life not only plays a vital role in maintaining soil health but also provides habitat for various wildlife species. Animals in semiarid areas have also adapted to the harsh conditions, often being nocturnal to avoid the extreme heat during the day. Climate change poses a significant threat to semiarid regions. As temperatures rise and precipitation patterns shift, these areas may become even drier, exacerbating existing challenges. The increased frequency of droughts can lead to soil degradation, reduced crop yields, and heightened competition for water resources. Therefore, it is essential for policymakers and environmentalists to focus on sustainable practices that can mitigate the impacts of climate change on semiarid regions. In conclusion, the semiarid climate is a critical aspect of our planet's diversity. It shapes the lives of millions of people and countless species. By understanding the characteristics and challenges of semiarid regions, we can better appreciate the intricate balance of our ecosystems and work towards sustainable solutions that protect these vulnerable areas. The future of semiarid regions depends on our collective efforts to manage resources wisely and adapt to the changing climate, ensuring that both nature and humanity can thrive in harmony.

在地理学的世界中，不同的地区展现出各种气候，这些气候对生态系统和人类活动有着显著的影响。其中一种气候被称为半干旱，指的是年降水量通常在10到20英寸之间的地区。这些地区的特点是干燥的条件，但它们并不是完全荒芜的；相反，它们通常支持一系列独特的植物和动物，这些生物适应了这种环境。理解半干旱气候至关重要，尤其是在农业、水资源管理和环境保护的背景下。 半干旱地区通常位于沙漠的边缘或大陆的内部。例如，美国西南部的部分地区，如亚利桑那州和新墨西哥州，经历半干旱条件。这些地区面临与水资源稀缺相关的挑战，这可能会影响农业生产力。生活在半干旱地区的农民必须采用创新的灌溉技术，并选择抗旱作物，以维持他们的生计。这些农民所采用的适应策略突显了生活在半干旱环境中社区的韧性。 此外，半干旱地区的生态系统也很迷人。植被通常由灌木、草和散落的树木组成，这些植物已经发展出深根系，以获取地下水源。这种独特的植物生命不仅在维护土壤健康方面发挥着重要作用，还为各种野生动物提供栖息地。生活在半干旱地区的动物也适应了严酷的条件，往往是夜行性的，以避免白天的极端高温。 气候变化对半干旱地区构成了重大威胁。随着温度上升和降水模式变化，这些地区可能变得更加干燥，加剧现有的挑战。干旱的频率增加可能导致土壤退化、作物产量减少，以及水资源竞争加剧。因此，政策制定者和环保人士必须关注可持续实践，以减轻气候变化对半干旱地区的影响。 总之，半干旱气候是我们星球多样性的重要方面。它塑造了数百万人的生活和无数物种。通过理解半干旱地区的特征和挑战，我们可以更好地欣赏生态系统的微妙平衡，并努力寻找可持续的解决方案，以保护这些脆弱的地区。半干旱地区的未来取决于我们共同努力明智地管理资源并适应气候变化，确保自然与人类能够和谐共存。