您要查找的是不是：
- SPATIAL PATTERN OF SOIL CHEMICAL PROPERTIES IN DEGRADED SANDY GRASSLAND UNDER POST-GRAZING NATURAL RESTORATION IN HORQIN SANDY LAND 放牧干扰后自然恢复的退化沙质草地土壤性状的空间分布
- degraded sandy land 退化沙地
- Report on the Improvement of Low-productive Degraded Sandy Grassland. 沙地低产退化草地改良试验报告
- 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。
- 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
- 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。
- 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]
- 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。
