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缺水程度
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  water shortage degree
     Based on the current status and characteristics of water resources in Sichuan Province, by virtue of water shortage index, Primary Component Analysis (PCA) method, Analytical Hierarchy Process (AHP) method and the graph disposing function of MapInfo, taking administrative division as basic studying units, the water shortage degree, shortage types, regional characteristics, reasons and countermeasures of Sichuan Province are accomplished and the methods and results of the study are as follows.
     本文在分析四川省水资源现状和特点的基础上,以市州(行政区划)作为研究的基本单元,利用水资源紧缺指标、主成分分析法、层次分析法等,对全省缺水程度、缺水类型、区域特征、缺水原因及对策进行了系统的研究,对四川省缺水程度-缺水类型进行了区划。 研究结果表明:
短句来源
     The classification of water shortage degree and shortage types of various provinces,re-gions and municipalities(excluding Taiwan)throughout China was carried out in the study by using comprehensive evaluation method and taking per capita available amount of water re-sources,per unit area available amount of water resources,per capita amount of water supplied and per unit GDP available water resources as indicators.
     论文以人均水资源量、单位面积水资源量、人均供水量和单位GDP占有水资源量为指标,采用综合评价方法对全国各省、自治区、直辖市(除台湾外)进行缺水程度及缺水类型的划分。
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  “缺水程度”译为未确定词的双语例句
     Based on the analysis of water use variation trend since the 1980's in China, the paper discusses the extent of water shortage in the northern area, puts forward some opinions on water quantity to be supplied by the Water Transfer Project from the South to North.
     本文在分析 80年代以来我国用水变化趋势基础上 ,探讨了北方地区的缺水程度 ,并对南水北调工程的可调水量提出了一些看法 ;
短句来源
     in those where there is less lack of water, high population density faces the water resource with great potential pressure.
     缺水程度低的地区 ,人口密度较高 ,使水资源存在巨大的潜在压力。
短句来源
     4) aridity of plant was reduced,and the healthy growth could be achieved.
     (4)植物缺水程度减轻,能够正常健康生长。
短句来源
     It is the degree of water short, which is called socioeconomic drought.
     干旱不再是简单的气象干旱,而是水资源供需不平衡下的缺水程度
短句来源
     4. The plants reduces the degree of the lacks of the water, and grows normally.
     4、植物缺水程度减轻,能够正常健康生长。
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  相似匹配句对
     the degree of relevance;
     关联的程度
短句来源
     A Comprehensive Study on Water Shortage Degree and Water Shortage Types of Sichuan Province
     四川省水资源短缺程度缺水类型综合研究
短句来源
     4. The plants reduces the degree of the lacks of the water, and grows normally.
     4、植物缺水程度减轻,能够正常健康生长。
短句来源
     The degree of malignancy is high;
     恶性程度高;
短句来源
     AN APPROACH TO THE GENESIS OF LACK OF WATER IN MIDDLE EAST
     中东缺水探原
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The effects of water stress on diffusive resistance of stomata (Rs) and transpiration rate (Tr) were studied in three-year-old apple trees (cv.Red Fuji-2) in 1986. It was shown that the method of measuring Rs and Tr by means of LI-1600 Steady State Porometer was a quick, sensitive and practicable one to determine water deficit of fruit trees. The effect of water stress was caused by two factors: the magnitude and duration of water deficit. Rs increased and Tr decreased significantly after two days of water deficit...

The effects of water stress on diffusive resistance of stomata (Rs) and transpiration rate (Tr) were studied in three-year-old apple trees (cv.Red Fuji-2) in 1986. It was shown that the method of measuring Rs and Tr by means of LI-1600 Steady State Porometer was a quick, sensitive and practicable one to determine water deficit of fruit trees. The effect of water stress was caused by two factors: the magnitude and duration of water deficit. Rs increased and Tr decreased significantly after two days of water deficit and recovered completely in two days after rewatering. If the duration of water deficit lasted for 4 days and wilting of leaves occurred at noon, the recovery would require about 7 days. If severe water stress lasted for 10 days, Rs and Tr would not be recovered completely after 7 days and might be affected permanently.

1986年用盆栽三年生长富—2苹果作试材,研究了水分胁迫对叶片气孔扩散阻力(Rs)以及蒸腾强度(Tr)的影响,证明用LI—1600型恒态气孔计测定Rs、Tr是一种快速、灵敏、生产可行的鉴定植株缺水的方法。水分胁迫对植株的影响包括两个因素,一是缺水程度,二是缺水持续时间。一般在缺水后第二天,Rs就会显著提高,Tr显著下降,如果及时供水,一天后,Rs、Tr便迅速恢复;若继续缺水(持续四天),叶片在中午发生了萎蔫,这时补救较为困难,需要近一周才能恢复;若缺水持续10天,叶片在早上都见萎蔫,Rs、Tr在一周以上尚不恢复,有可能造成永久危害。恢复过程中的植株,对外界尤为敏感,轻微的逆境,气孔会迅速作出关闭反应。土壤含水量与Rs呈负相关、与Tr呈正相关,回归曲线均为变形双曲线,当土壤含水量在10%以下时,随土壤含水量的增加,Rs迅速下降,Tr迅速提高,当土壤含水量在10%以上时,Rs下降和Tr上升幅度都比较缓慢。

It was observed that the rates of main stem growth and fruiting site formation decreased by over 30% when soil relative water content (SRWC) was lower than 60% as against control plantsj growth virtually ceased when SRWC fell below 40%. There were linear decreases in the photosynthetic rate (Pr) , water potential (ψ1) ar.d transpiration rate (Tr) of cotton leaves and exponentia curve increases in stomatal resistance (rs) as soil moisture deficit increased, when soil moisture was suitable during this period,...

It was observed that the rates of main stem growth and fruiting site formation decreased by over 30% when soil relative water content (SRWC) was lower than 60% as against control plantsj growth virtually ceased when SRWC fell below 40%. There were linear decreases in the photosynthetic rate (Pr) , water potential (ψ1) ar.d transpiration rate (Tr) of cotton leaves and exponentia curve increases in stomatal resistance (rs) as soil moisture deficit increased, when soil moisture was suitable during this period, the average Pr was 22.0 mg DW/dm2. h2, ψ1 above -15 bar, Tr about 9.4 μg/cm2.s, rs about 2.3 S/cm; Pr, ψ1 and Tr all decreased by 50-53% and rs increased by about 54% under severe water deficit.

花铃期土壤相对含水量在60%以下时,棉花主茎平均日生长量和果节出现速率比不缺水的对照降低30%以上;土壤水分低于40%时,生长基本停止。随土壤缺水程度加剧,棉叶的光合速率(Pr)、水势(ψ_1)和蒸腾强度(Tr)呈直线下降,气孔阻力(r_s)呈指数曲线型增加。此期土壤水分适宜时,棉株的Pr为22.0mg千重/dm~2·h,ψ_1在-15巴以上,Tr约9.4μg/cm~2·s,r_s约2.3s/cm;严重缺水时,Pr、ψ_1和Tr均降低50~53%,r_s增加约54%。

To guide the development of water-saving agriculture in line with local conditions,authors of this paper divide North China into 10 sub-areas of water-saving agricultural development based on the principles of "summarizing similarities,identifying differences and considering administrative demarcations" and adopting an area dividing index system that depends on geological and climatic features and levels of irrigatioin and water deficiency. In addition, the scale of development of water-saving agriculture in...

To guide the development of water-saving agriculture in line with local conditions,authors of this paper divide North China into 10 sub-areas of water-saving agricultural development based on the principles of "summarizing similarities,identifying differences and considering administrative demarcations" and adopting an area dividing index system that depends on geological and climatic features and levels of irrigatioin and water deficiency. In addition, the scale of development of water-saving agriculture in North China in the year 2000 is predicted by methods of system engineering.

为因地制宜地指导华北地区节水型农业的健康发展,按照"归纳相似性、区别差异性、照顾行政区界"的原则,以地貌特征、气候特征、灌溉程度、缺水程度作为分区指标,将华北分为10个节水型农业分区;根据农业生产发展的需要,采用系统工程方法,对2000年华北地区节水型农业发展规模进行了预测。

 
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