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- Study on Population Stability of Picea mongolica on Sandy Land. 沙地云杉种群稳定性研究
- Study on eco-agricultural model in coastal sandy land. 滨海砂地生态农业模式研究
- Pioneer Tree Species for Forestation in Sandy Land--Hippophae rhamnoides L. 沙地造林的先锋树种-沙棘。
- In general, the landscape of sandy lands and wetlands responds quite sensitively to climate fluctuations. 沙地与湿地对气候变化都有敏感的响应。
- The study was conducted for different grazing systems in the ecotone of grassland and farmland in Ningxia sandy lands. 摘要研究了宁夏河东沙地农牧交错区不同放牧方式对土壤环境的影响。
- Natural regeneration of Pinus sylvestris var. Mongolica plantation on sandy land. 樟子松人工固沙林天然更新特征。
- Studies on the Water Transport Characters in SPAC System of Mu Us Sandy Land in Ningxia. 宁夏毛乌素沙地SPAC系统中水分运移特征的研究。
- Investigation on Helianthus tuberosus L. Growing in Sandy Land of the Eastern China. 我国东部沙地菊芋生长的调查研究。
- The unstable factors in the sandy land agricultural development in Yucheng and countermeasures. 禹城沙地农业发展中不稳定因素及其防治
- Project Description: There are 40,000 mu sandy lands in Malian Bank, Dabancheng District, which possess adequate water and are very suitable to plant ephedra. 项目描述:达坂城区马莲滩现有可开发利用土地4万余亩,土质为沙质性土壤,水源充足,可种植麻黄药材。
- Spectral data of sandy land are changed with vegetation coverage,vegetation ty... 沙化土地光谱数据表现出随植被覆盖、植被类型、土壤、地类等的变化规律。
- Evaluation result shows that desertification in Mu Us Sandy Land is very serious. 对毛乌素沙地评价结果表明,毛乌素沙地荒漠化十分严重。
- 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。
- There are 1106 species of high vegetation in Maowusu sandy land and they belong to 98 families and 420 genuses. 摘要毛乌素沙地的高等植物共有1106种,分属于98科420属。
- Soil erosion by wind is one of the main natural disasters on the sandy land in West Jilin Province. 摘要风蚀危害是吉林省西部沙地的主要自然灾害之一。
- Recent years, geologists have discovered large areas of paleo aeolian sand existed in shifting sand dune, semi fixed and fixed sandy lands in Ordos Plateau. 地质研究表明鄂尔多斯高原沙漠在史前即已存在,史籍也记载北魏时期该地区有大沙漠,“人造沙漠”的论点不能成立。
- Note:Data in the table are the figures of the Third National Desertification and Sandy Land Monitoring (2004). 注:本表为第三次全国荒漠化和沙化监测(2004年)资料。
- Natural regeneration ability of woodland-steppe in Kerqin Sandy land were very strong. There were 60 000 elm seedlings/hm~2 in elm woodland-steppe. 科尔沁沙地天然榆树疏林草原的自然更新能力较强,每年可以产生大量的榆树幼苗,疏林地内每个小居群内的幼苗数以1株~10株最多,每公顷疏林地有幼苗6万多株,折合6株/m2,为榆树疏林草原植被的恢复提供了可能。
- The test showed that the brush cutter had better trafficability on the sandy land and could meet the requirements for harvesting the shrubs. 试验表明,该割灌机在沙地有较好的通过性能,能满足灌木收割的需要;
- Chen Z C,Li D S.Microflora variations of afforested sand dune soil in Naiman banner,Horciin sandy land[J].Journal of Desert Research,1992,12(3):16-21. [3]陈祝春;李定淑.;科尔沁沙地奈曼旗固沙造林沙丘土壤微生物区系的变化[J]