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- farmland sandy desertification 农田土壤沙化
- Results showed that the content of clay decreased with increased sandy desertification on grassland. 结果表明,随着草原沙漠化的加剧,(1)土壤颗粒组成发生变化,黏粒含量趋于减少,砂粒增多。
- With the process of the sandy desertification in grassland, the contents of clay decreased. 随着草原沙漠化的加剧，土壤粘粒含量趋于减少，砂粒增多。
- Sandy desertification is the main ecological problem the Otindag Sandy Land at present. 沙漠化是浑善达克沙地面临的主要环境问题。
- Main degradation types include sandy desertification, secondary salinization and grassland degradation. 干早区土地退化主要为土地沙漠化、土地次生盐渍化和草地退化；
- Desertification types in Minqin county are mainly sandy desertification and salinized desertification. 民勤县的荒漠化类型主要有风蚀荒漠化和盐渍荒漠化。
- The analysis to sandy desertification land types shows that the moving sand dune decreases, semi-fixed sand dune and fixed sand dune increase. 从沙化土地类型上分析，流动沙地面积减少，半固定、固定沙地面积增加。
- Especially the desertification of northern China (sandy desertification) and the overwhelming majority of its size and rapid development concern. 尤其是我国北方的沙漠化（砂质荒漠化）以其面积广大和发展迅速而引人关注。
- In 2000,desertification includes sandy desertification,water erosion and salinization in Maowusu sandy land and there is totally 6. 2000年毛乌素沙地的荒漠化类型包括沙漠化、水土流失和盐碱化,共有荒漠化土地6。
- Thirdly, the sandy desertification of the HSL consists of three types: the local type, the windblown type and coarse-grained type. 4．浑善达克沙地的沙漠化类型主要包括三种：就地起沙型、地表粗化或戈壁化型和风沙型。
- For effectively combating land sandy desertification and ulteriorly defining the strategy and approaches of its control it is needed for us... 根据我们的研究和总结,提出了我国沙漠化防治的战略、指导方针、基本原则和途径。
- The figure of DCA ordination of axis 1 & axis 2, and axis 1, axis 2 & axis 4 reflected the ecological regulations between vegetation and sandy desertification. 第 4轴主要反映热量梯度 ; DCA的1、4轴排序图和 1、2、4轴排序图 ;反映沙地植被与沙质荒漠化的生态规律 .
- The windblown sandy desertification is distributed mainly at the edge of above deserts, such as sand-covered loess areas at the south of Mu Us Shadi desert. 风沙型沙质荒漠化主要分布在上述沙地的边缘地带，如毛乌素沙地以南的覆沙黄土区等。
- The results showed: in 1995, Shandan county, Zhangye city, Sunan county,Yongchang county, Jingtai county and Yumen county belong to slight sandy desertification. 结果表明：1995年，属于轻度荒漠化的有山丹县、张掖市、肃南县、永昌县、景泰县和玉门市。
- Through surveying the causes of sandy desertification and its development, we think that the natural basis of sandy desertification is climate changes, landforms, features... 总结了沙漠化对农牧业、交通、水利、通信以及人类健康等的危害,提出防治坝上地区沙漠化的对策建议。
- Man-made factors play an important role during the sandy desertification, which are also one of many aspects in the research field of sandy desertification. 摘要在沙漠化过程中，人为因素起着重要的作用，是沙漠化研究的关键问题之一。
- The process of desertification is controlled by climatic changes as well.Furthermore, human impacts sandy desertification on the above-metioned backgrounds. 其中，第四纪以来的构造-沉积特徵控制著不同类型荒漠化的区域分布，气候变化控制著荒漠化的进程，人类活动则是在上述背景的基础上进行。
- The sandy desertification of this area is characterized by vulnerability, restorability and reversibility, by which the ecological-environment reversion period has been determined. 沙漠化的形成有自然和人为两方面原因。该地区沙漠化发展具有脆弱性、可恢复性和可逆性的三性"特征,以及生态环境恢复的时间周期。
- Gradually the surrounding farmland turned residential. 周围的农田渐渐变成了住宅区。
- The evaluation index system of Keerqin sandy desertification was established by using Remote Sensing data, and the occupation ratio of bare sandy land was obtained by mixed spectrum model. 利用外业调查的数据对该指标体系进行验证，结果表明该指标体系适于研究区域的荒漠化评价。
