查询词典 arid region

Our study regarded Pear and Aids Apricot tree which be used to develop afforestation by water-harvesting in Semi-arid Region on Loess Plateaus as experience forest. In the case of water-retaining agent, we study the physical effect of water-retaining agent on soil water shifting balance and water use efficiency through soil-water-atmosphere conium system.

本研究以黄土半干旱区集水造林的杏树和梨树为试验林分，采取以保水剂为中心的综合保水技术，运用土壤—植物—大气连续体理论和土壤物理学理论，系统地研究了保水剂对土壤水分动态及其利用效率的影响，得到如下主要结论： 1。

Phase 1 started with field pea followed by spring wheat whereas phase 2 started with spring wheat followed by field pea.The objectives of this thesis are:1 to quantitatively analyze effects of soil chemical,physical and biological properties on soil quality and productivity under different tillage systems and the driving factors for the changes of soil quality under tillage in a long-term,2 to select the best soil quality assessment indicators,and 3 to establish soil quality assessment models that are suitable for the erodible environment of semi-arid region on the Loess Plateau.

通过分析3个轮作周期不同耕作方式下土壤理化性质、生物性质和生产力对土壤质量的影响，阐明长期耕作过程中土壤质量的演变特征及其驱动因子，筛选出适宜于黄土高原半干旱区侵蚀环境下土壤质量评价的代表性指标；并综合前人的研究，结合区域特点，建立适宜于黄土高原半干旱区侵蚀环境的土壤质量评价模型。

This forbiddingly arid region covers 56,000 square miles (145,000 square kilometers) of central Australia and boasts some of the largest sand dunes in the world.

这个可怕的不毛之地涵盖56000平方英里（145000平方公里）在澳大利亚中部并称是世界上最大的沙丘。

North-West China is an arid region where the saline soil is widely distributed, and therefore is rich in halophyte plants.

中国西北地区是我国干旱、盐碱化土壤分布面积较广、土壤积盐较重的地区，这里发育着丰富的盐生植物。

This study attempted to extract lithlogical and mineralogical information in the arid region using the ASTER multispectral data.

本研究尝试利用ASTER 可见光近红外和短波红外的多光谱遥感数据提取干旱地区的岩石与矿物信息。

At leaf scale, TJ photosynthesis model was selected and Gao stomatal conductance model was proved suitable for semi-arid region after comparing with BBL model through the parameter regression and analysis of model sensitivity. Plant physio-ecological characteristics were analyzed based on the parameters gained from the nonlinear regression using TJ model and Gao model with field experimental data. As C4 photosynthesis types Zea mays and Panicum miliaceum 's carboxylation coefficient are bigger than the others.

在叶片尺度上，选择TJ模型作为叶片尺度所使用的光合模型，并对景观模拟中经常用到的Ball-Berry模型和Gao模型进行比较，通过参数拟合和模型的敏感性分析，选择Gao模型作为叶片尺度的气孔导度模型，应用模型模拟的结果，分析了研究区主要植物种的生理生态学特性。C4光合型的玉米和糜子，羧化速率系数大，光合能力强。

Xinjiang is located in the northwestern arid region in China, and is one of five pasturing productive area in China.

新疆处于我国西北干旱区，为我国的五大畜牧业生产基地之一，草地资源丰富，毛面积达5726×104hm2。

Studies of PFTs is benefit to expatiate relation of vegetation and disturbance and to analyse losing of biodisversity and invasion of ruderal in arid region.

植物功能型可用于分析生态系统功能、评价生态系统对环境变化的敏感性。

It\'s important to achieve sustainable development and improve ecologic environment, also hope it have positive influence for correlational study of similar arid region.

对该区实现可持续发展和生态环境改善有着重要的意义，也望对类似干旱区的相关研究产生积极影响。

Discovered in an isolated and arid region of Australia in 2007, the Central Ranges taipan is one of the most venomous snakes in the world.

2007年发现于澳大利亚与世隔绝干旱地带的中陆太攀毒蛇，是世界上毒性最强的蛇之一。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。