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  vegetation
     Research into Several Key Problems Existing in Vegetation Construction in Loess Plateau
     黄土高原植被建设中若干关键问题的研究
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     Research on the Remote Sensing Means of Monitoring Grassland Vegetation Change
     草地植被变化遥感监测方法研究
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     Vegetation Background and Succession Rule in Northwest China
     西北地区植被背景值及演替规律研究
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     Study on Dynamic Change of Vegetation and Desertification in Oasis Based upon RS and GIS Techniques
     基于RS和GIS的绿洲植被与荒漠化动态研究
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     Based on FVC Data to Analyse the Spatiotemporal Variation of Vegetation Cover in China Western Arid Land 1982~2000
     基于FVC指数对1982~2000年中国西部干旱区植被覆盖时空变化特征分析
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  vegetations
     4. The composition of water in surface runoff under various vegetations, is HCO_3~- > Ca~(2+) > SO_4~(2-) > Mg~(2+) > NO_3~- > Cl~- > Na~+> K~+> NH_4~+ > PO_4~(3-) .
     4.喀斯特地区不同植被条件下地表径流中离子浓度大小顺序是:HCO_3~->Ca~(2+)>SO_4~(2-)>Mg~(2+)>NO_3~->Cl~->Na~+>K~+>NH_4~+>PO_4~(3-)。
短句来源
     In this paper,the land use in the region of 32 5 ° 38 0 ° N,100 5 ° 109 0 ° E is classified according to the vegetation index difference in time and space of various vegetations by using NOAA/AVHRR data from 1992 to 1993 The annual variation characteristics of vegetation index of different land use are discussed according to classified results
     根据不同植被群落植被指数的时空变化特点,利用1991—1993年NOAA气象卫星AVHRR资料对325°—380°N,1005°—1090°E范围内的土地覆盖状况进行了分类,并利用分类结果讨论了不同土地类型植被指数年变化的特点
短句来源
     Results show that the areas of good situation,better situation and general situation of vegetations have been increased,and the change areas are 906.39 km2,593.67 km2,384.13 km2 respectively,the areas of worse and worst situation of vegetation have been decreased,and the change areas are 192.54 km2,348.03 km2 respectively.
     研究结果显示:2000-2004年期间,研究区植被状况好、较好、一般的土地面积分别增加906.39 km2、593.67 km2、384.13 km2,植被状况较差、差的土地面积分别增加了192.54 km2、348.03 km2。
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     Under different vegetations,the size of active carbon pool from surface and subsoil respectively accounts to 0.54%~1.67% and 0.45%~5.48% of total soil organic carbon,and the mean residue time is 11~56 days and 60~88 days;
     在不同植被下的表层和下层土壤中,活性碳占总有机碳的0.54%~1.67%,0.45%~5.48%,平均驻留时间为11~56天、60~88天;
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     Soil CO_2 Concentration under Different Artificial Vegetations in South Suburb of Xi'an
     西安南郊不同人工植被下土壤CO_2浓度研究
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  plant cover
     The mean value of plant cover degree was increased from 53.6% (2002) to 70.2% (2004) by 16.6%.
     退化草场围栏后的平均植被覆盖度由2002年的53.6%,提高到2004年的70.2%,提高了16.6%。
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     Study on Dynamic Change of Yuli Oasis Plant Cover Based on RDVI
     基于RDVI的尉犁绿洲植被覆盖动态变化研究
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     In addition, soil organic carbon and nitrogen contents showed positive linear correlations with plant cover and productivity and negative correlation trend with soil pH and total salt content.
     土壤有机碳含量和全氮含量与植被盖度和草地生产力存在正相关趋势; 土壤有机碳含量和全氮含量与土壤pH值和全盐量存在负相关趋势。
短句来源
     Soil organic carbon in the 0~20cm and 20~40cm layers was positively correlated with annual precipitation,plant cover, plant productivity, soil water content, and<0.05mm particle content (P<0.001),and negatively correlated with average temperature and soil pH(P<0.001).
     0~ 2 0 cm和 2 0~ 40 cm土层土壤有机碳含量与年降水量、植被盖度、草地生产力、土壤含水量和<0 .0 5mm颗粒含量呈极显著正相关 ,与年均温、土壤 p H值呈极显著负相关 (P<0 .0 0 1)。
短句来源
     with the plant cover degree increasing,the content of particulate phosphorus and TP of surface runoff decreased slowly but that of ortho-P increased slowly.
     不同植被覆盖度下坡面地表径流中颗粒态磷和TP的含量,随着植被覆盖度增大而减少,但径流中Ortho-P的含量则随着覆盖度的增加而增加。
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  vegetative cover
     Based on the observed data of Zhengzhou southwest exurban freeway,the effects between soil erosion and rainfall are discussed with the vegetative cover rate(90%,70%,50%,30%,10%).
     研究郑州西南绕城高速公路边坡不同土壤保持工程措施,在一定植被盖度(90%、70%、50%、30%、10%)下,不同降雨强度对土壤侵蚀速率的影响。
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     Application of TBS Vegetative Cover Technology in Protection of Rock Side Slope
     TBS植被技术在岩石边坡防护中的应用
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     The results show that the annual sand land erosion modulus in average is 24757 t/(km2·a) under vegetative cover of 10%-20% and 2 920 t/(km2·a) under vegetative cover of 40% ;
     结果表明:蔓荆植被覆盖率为10%~20%时,风蚀模数为2万4757t/(km~2·a),植被覆盖率达到40%时,年均风蚀模数只有2920t/(km~2·a);
短句来源
     Warm season grasses accounted for 48 to 73 percent of the ground cover. Switchgrass (Panicum virgatum) was the dominant warm season species at all sites, with vegetative cover values ranging from 48 to more than 56 percent.
     暖季草覆盖占48%至73%,在全部现场柳枝稷(Panicum virgatum)是暖季草占优势,其植被覆盖度从 48%到56%。
     Developing Trend and Situations of Technique to Stabilize Rock Slope with Vegetative Cover in China
     中国岩石边坡植被护坡技术现状及发展趋势
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  vegetation
Based on the basic principles of the micrometeorology of atmospheric boundary layers and vegetation canopy, a numerical model of the interaction between forest ecosystems and atmospheric boundary layers was developed.
      
Increased vegetation cover and change in farming techniques were suggested to prevent and control wind erosion of sand and soil.
      
Under artificial plantations, the vegetation layer (including roots) had a mean carbon density of 111.3 t/hm2, the litter layer a density of 5.1 t/hm2, and the soil layer a density of 64.9 t/hm2.
      
The ratios of carbon density among vegetation, litter, and soil pools were 39.6:1.8:58.6 for artificial forests and 57.4:2.7:39.9 for natural forests.
      
The carbon densities of the vegetation and litter layers increased exponentially with forest age.
      
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  vegetations
The results indicate that undisturbed soils have higher shear resistance and less shear displacement than remolded soils at the same vertical loading, when both soils have the same dry density and water content under the same vegetations.
      
Initially, vegetations were not detected using transthoracic and transesophageal echocardiography.
      
Subsequent follow-up using echocardiography is necessary for detection of slowly developing vegetations.
      
There was a perforation of this aortic root abscess to the left ventricular outflow tract; the aortic and mitral valves however were normal without endocarditic vegetations.
      
Of five patients from 1995-1998, in whom leads with vegetations or tricuspid valve insufficiency were removed by thoracotomy and cardiopulmonary bypass, one patient died perioperatively.
      
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  plant cover
The species are more likely to prefer sites with plant cover, shrub cover (independent-samples t test, P>amp;lt;0.05), and shrub height (Mann-Whitney U test, P>amp;lt;0.05) in a relatively small range.
      
Annual photosynthetic carbon sequestration and net ecosystem production in northern Eurasian plant cover
      
The data on the concentrations of 90Sr and 137Cs in 54 species of lichen and moss with different taxonomic natures, as well as in samples of lichen-moss plant cover, are reported.
      
Experience in mapping the ecological state of the plant cover
      
Objectives and methods of mapping the ecological state of the plant cover at different spatial levels-federal, regional, and local-are analyzed.
      
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  vegetative cover
Effects of deterministic chaos and strange attractor in the radar of dynamic systems of the vegetative cover type
      
The results of experiments aimed at detecting the regime of deterministic chaos in the 2.2 mm circularly polarized radar of vegetative cover are reported.
      
The role of volcanic ash in formation of soil and vegetative cover in the present-day explosive volcanism area
      
Plant species richness, vegetative density, vegetative cover and distance to the bushy patches are possibly the most important factors for the display sites selection of houbara bustard
      
Off-road vehicle (ORV) impact on the landscape includes the destruction of protective vegetative cover, soil compaction, and increased runoff followed by increased erosion.
      
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