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干旱半干旱地区 Arid and semi-arid region英语短句 例句大全

时间:2021-04-13 17:08:54

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干旱半干旱地区 Arid and semi-arid region英语短句 例句大全

干旱半干旱地区,Arid and semi-arid region

1)Arid and semi-arid region干旱半干旱地区

1.Discussion about the evaluation method of water supply in arid and semi-arid region;干旱半干旱地区的灌溉供水评价方法探讨

英文短句/例句

1.The Research of Dust Emission in Arid and Semi-arid Soil干旱半干旱地区土壤的粉尘释放研究

2.Groundwater has very important eco-value in arid and semi-arid regions.干旱半干旱地区地下水具有重要的生态价值。

3.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。

4.Ecological Responses Along the Road Corridor in the Arid & Semi-Arid Regions of Northwest China;西北干旱半干旱地区公路廊道生态响应研究

5.The population distribution and economic development in Arid& Semi-Arid area of northwest of China;我国西部干旱半干旱地区人口分布与经济发展

6.On the Strategies of Sustainable Agricultural Development in The Arid and Semi-Arid Areas of China;我国干旱半干旱地区农业持续发展战略探讨

7.Climatic change and influence in arid and semi-arid area of China我国干旱半干旱地区气候变化及其影响

8.Determination of thermal parameter of aerated zone in the arid and semi-arid region干旱半干旱地区包气带热参数模型研究

9.SWAT application in arid and semi-arid region:A case study in the Kuye River BasinSWAT在干旱半干旱地区的应用——以窟野河流域为例

10.Effect of Different Cultivation Patterns and Zinc Fertilization on the Drought Resistance of Summer Maize in Arid and Semiarid Region;不同栽培模式和锌肥对干旱半干旱地区夏玉米抗旱性的影响

11.of arid and semiarid open country.产于干旱和半干旱地区的空旷乡间。

12.The region is semiarid to arid in overall climate.这个地区总体上是半干旱至干旱气候。

13.Agricultural and Livestock Production in the Arid and Semi-arid Areas in the United States of America美国干旱、半干旱地区的农牧业生产

14.dryland(s) management: The management of arid and semi-arid areas.旱地管理:指对干旱和半干旱地区的管理。

15.Semi-arid land ecosystems半干旱地区生态系统

16.Study of Preventing Leakage and Saving-Water Technique in Sandy Soil in Semiarid and Arid Region干旱、半干旱地区沙质土壤的防渗节水技术研究

17.Soil Dematiaceous Hyphomycetes from the Arid-semiarid Zones of Northwest China;中国西北干旱—半干旱地区土壤中的暗色丝孢菌

18.Research on Wetland Landscape Ecology in Arid and Semi-arid Areas in Northwest China;西北干旱半干旱区湿地景观生态研究进展

相关短句/例句

arid and semi-arid regions干旱半干旱地区

1.Application of amorpha fruticose to vegetation protection for sideslopes of highway at thearid and semi-arid regions;紫穗槐在干旱半干旱地区公路边坡植物防护中的应用

2.Groundwater has very important eco-value inarid and semi-arid regions.干旱半干旱地区地下水具有重要的生态价值。

3)arid and semiarid region干旱半干旱地区

1.Mineral compositions of soil in thearid and semiarid region and their environmental significance;干旱半干旱地区土壤矿物组成特征及其环境意义

2.Eco environment is more fragile inarid and semiarid region.干旱半干旱地区是生态环境比较脆弱的地区 ,特别是人类不合理开发 ,使生态环境受到严重威胁。

4)arid and semiarid regions干旱半干旱地区

1.The micro-meteorological conditions are advantageous for forming soil condensate inarid and semiarid regions in north China.中国北方干旱半干旱地区的气象条件有利于土壤凝结水的形成。

2.Soil microbiotic crust is developed broadly and has an ecological significance inarid and semiarid regions.土壤微生物结皮广泛存在于干旱半干旱地区 ,且具有重要的生态学意义。

5)arid and semiarid area干旱半干旱地区

1.A study on the strategic significance of geographical environmental construction inarid and semiarid area of China;中国干旱半干旱地区地理环境建设战略意义初探

2.This paper, proceeds from the background of relatively severe desertification in China"sarid and semiarid areas and the western development aiming at eco-environ-ment construction, in combination with physical and human characteristics .本文从我国干旱半干旱地区沙漠化比较严峻及西部大开发以生态环境建设为目标的背景出发,结合研究区的自然、人文特征,设计干旱半干旱地区沙漠化信息系统的总体结构、功能、模型,系统包括数据库管理子系统、土地沙漠化信息查询子系统、模型库管理子系统等。

6)arid and semi-arid area干旱半干旱地区

1.Climatic change and influence inarid and semi-arid area of China我国干旱半干旱地区气候变化及其影响

延伸阅读

生理干旱生理干旱physiological droughtl一2个人气压,含盐土壤可达l()一4()个大气压,甚至超过1()0个大气压,而根系的渗透压只有2一8个大气jl、,此时根部细胞不仅不能吸水,甚至会导致水分向外渗透,产生“‘烧苗”现象,使组织脱水干死。生理干旱的表现形式很多.夏季炎热的中午用冷水灌溉蔬菜,骤然降温,会使根系呼吸作用剧烈下降,吸水减少,而此时蒸腾强烈以致造成作物水分失调玉米因排水不畅受涝时,会造成根系通气不良,有水不能吸收。冬季、早春空气干燥,植物失水较多,此时上壤尚未化冻,易使根系吸不上水,果树发生“.抽条”,小麦植株脱水。防御措施:①注意掌握灌溉水温。中午天气炎热时忌用冷水浇灌作物,以免土温急剧下降而使作物脱水夏天可在早晨或傍晚浇水,也可用晒水池的水浇灌作物。②多施肥料,适时中耕松上,及时排除积水)稻田要进行耘田和排水烤田。③灌水要适量、及时,防止因仁壤溶液浓度过高而“‘烧苗”。在盐碱地上应加大灌水量,增加灌水次数,使上壤维持较高的含水量,便于作物根系吸收()(王一鸣)shengli ganhan生理干旱(physiologieal drought)土壤中有足够的水分,但由于其它不利因素的影响使作物根系吸水发生障碍,使体内水分不平衡而造成的伤害。土壤状况是影响根系吸水的主要因素。土壤温度的高低对根系吸水有显著影响。土温过高,根系的新陈代谢受到破坏,吸水受到抑制。当土温过低时,土壤水分的粘滞性增强,扩散速度减慢,根细胞原生质浓度增大,渗透作用降低,根压减小,吸水困难。土壤的通气状况也影响根系的吸水能力,当田间长期积水时,土壤通气不良,COZ增多,氧气不足,根系的呼吸受到抑制,吸水量减少,在缺氧条件下进行无氧呼吸,大量消耗可溶性糖分,易产生和积累酒精、硫化氢、乳酸等有毒化学物质,使根系中毒受伤,严重时腐烂死亡。土壤溶液浓度对根系的吸水力也有影响,盐碱土壤溶液的盐分浓度很高;施用化学肥料过量时,也会提高土壤溶液的浓度,以致加大土壤溶液的渗透压,造成根系吸水困难。一般土壤溶液渗透压常为

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