首页 / 词典 / good

沙化

shā huà
  • desertification;reclaim
沙化沙化
沙化 [shā huà]
  • [desertification] 由于气候的自然变化,或对半干旱地区的错误管理和使用而产生的干燥的、裸露的、沙漠般的状态

沙化[shā huà]
  1. 重点地区沙化土地地理信息系统(GIS)的建立

    Established Desertification Land Geographic Information System of Key Region China

  2. 土地沙化监测GIS系统设计与开发

    Design and Development of the GIS-based Land Desertification Monitoring System

  3. GIS及景观熵模型在沙化土地监测与评价中的应用研究

    Landscape Entropy Model Application in the Monitoring and Assessment of Sandy Land

  4. 基于遥感和GIS的北京北部洪积区土地沙化现状研究

    Research into the Status of Desertification in the Alluvial Fan to the North of Beijing , Based on RS and GIS

  5. 即通过卫星影像的处理、判读,辅以GPS地面定位调查及其它调查方法获得中国北方沙化土地基础数据;

    That is , acquiring basic data by processing and interpreting the satellite image , assisted by ground investigation using GPS and other investigation method ;

  6. 基于3S的草原沙化治理工程生态效益评价与实证研究

    The study on ecological benefit of grassland desertification control project based on 3S technology

  7. 利用MODIS数据识别若尔盖草地的沙化&分层分类方法

    Application of MODIS data to identifying desertification in Zoige grassland : a layered-classfication method

  8. 从农、牧、林角度比较了防护林(A)、农林复合(B)和林牧复合(C)三种措施防治沙化的效果。

    The farmland sandy desertification preventing effect was compared : protective forest ( A ), the farming and forestry compound ( B ) and the forest and pasture compound ( C ) .

  9. 采用LandsatETM+多时相影像,在地类光谱特征分析的基础上,用分层分离的方法,提取出沙化土地信息。

    Multi_layer remote sensing information extraction of sandy land using multi_temporal Landsat ETM + images was developed based on spectral characteristic analysis .

  10. 利用1997~1998年1∶25万辽宁省TM遥感影像及相应的GIS获取的数据,调查分析了辽宁省土壤侵蚀、土地沙化和盐渍化3种类型土地退化程度、面积和分布。

    The degradation degree , area and distribution of three types of degraded land caused by erosion , desertification and salinization were investigated in Liaoning Province by using landsat TM 1 ∶ 250000 and GIS Data .

  11. 高寒草甸、沼泽草甸、沙化草原中主要植物种都属于C3类型的光合代谢途径,它们都属于C3植物。

    Species of meadow , swamp meadow and sandy grassland belonged to the main types of C3 photosynthetic pathway , and they all belonged to C3 plants . 3 .

  12. T2(羊粪和麦秸的混合腐熟物同沙化土的体积比为0.5∶1)产量最高,品质较好;

    The treatment 2 's ( the ratio is 0.5 ∶ 1 between sandy-soil and the mixes humus of sheep manure and straw ) yield is the highest and quality is better ;

  13. 利用LANDSATTM影像,对河北坝上地区1986年和2000年的土地退化,包括土地沙化、盐渍化和水土流失状况进行了分析,根据土地退化的成因,提出了退化土地的生态恢复重建的措施。

    Using Landsat TM images , land degradation of Bashang region during 1986 and 2000 , including sandy desertification , salinization and water erosion are analyzed . Based on the causes of land degradation , ecological reconstruction measures of degraded land are put forward .

  14. 通过陆地卫星TM图像及部分航空彩红外像片的解译发现,海南岛土地沙化主要分布在海滨平原、沙质台地区,并具有西重东轻、近海严重而向内陆减轻的特点。

    By interpreting TM image and some aero color infrared photo , the paper gives us the land desertification distribution area , it has the feature that the desertification is worst in west and light in east , and the farther away from the sea , the lighter it is .

  15. 以20世纪70年代陆地卫星MSS和90年代ETM图像为基础,通过分析对比,并配合野外检查验证,快速提取了塔里木盆地周边地区4种程度土地沙化类型的分布信息。

    On the basis of Landsat MSS of 1970s and ETM image of 1990s and by means of analysis and comparison as well as field inspection , the authors rapidly extracted the distributive information of four levels of soil desertification along the peripheral areas of Tarim basin .

  16. 近30a来,由于人口剧增和人类对自然资源的过量开发,导致该地区干旱缺水、土地盐碱化和沙化,制约了环境的持续发展。

    In the past three decades , with the population explosion and overdevelopment of the natural resources , there are many environmental problems , such as water resource scarcity , and alkalized and sandy cultivated land , which restrain the environmentally sustainable development .

  17. 通榆县是吉林省土地沙化最严重的典型县之一,沙化土地面积为19755×104hm2,占吉林省土地总面积的230%。

    Tongyu County is the representative of the most serious land desertification of Jilin Province . It has 19.755 × 10 4 hm 2 sandy land , accounting for 23.0 % of the total land area of Jilin Province .

  18. 彰武农田土壤沙化防治措施的效果研究

    Effect of the Preventing Measures on Farmland Sandy Desertification in Zhangwu

  19. 宁夏重点风沙区土地沙化成因分析

    Causes of Soil Desertification in the Key Windy-sandy Region in Ningxia

  20. 大庆市土地沙化现状及治理对策

    The Actuality and Countermeasures of The Land Desertification in Daqing City

  21. 长江源区沙化现象初步探讨

    A preliminary study on Desertification in source region of Yangtze River

  22. 川西北沙化土地动态分析评价及其治理对策

    Dynamic analysis and assessment on north-west desertification land of Sichuan province

  23. 赤峰市沙化土地结构与动态研究

    Study on Structure and Dynamic of Desertification Land in Chifeng City

  24. 围栏封育是沙化草地植被自然恢复最经济而有效的措施之一。

    Fencing is one of the most economic and effective measures .

  25. 玛曲县沙化土地主要分布在沿黄河两岸的阶地带和冲积河滩。

    The desertification land distribute mainly in fluvial terrace and alluvion .

  26. 彰武农田沙化分布规律的初步研究

    Primarily study on desertification distribution law of farmland in Zhangwu County

  27. 遥感技术在沿海土地沙化监测中的应用研究

    Researches in applying remote sensing technology to coastal land desertification monitoring

  28. 围封沙化草地种子岛效应研究

    Study on the Seed Source Effect of Enclosed Sandy Grassland

  29. 鄂尔多斯高原土地沙化过程中自然与人为因素的定量分析

    The quantitative analysis of effect factors on sandy desertification in Ordos Plateau

  30. 吉林省西部土地沙化动态变化

    Spatial distribution of sandy desertification change in western Jilin Province