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- The relationship of competitive ability and productive performance between land race Monkhead and modern variety 8275 of spring wheat in semi arid area of Loess Plateau was invested using de Wit replacement series. 采用deWit替代系列法研究了黄土高原半干旱雨养农业区传统地方品种(和尚头)与现代品种(陇春8275)之间在混播条件下的竞争结局。
- Semi arid climate, poor vegetation cover and highly erodible loess can be regarded as the main natural factors responsible for the formation of hyperconcentrated flows in the Loess Plateau, China. 黄土高原半干旱的气候条件、稀疏的植被和疏松易蚀的黄土物质,是该地区高含沙水流形成的自然地理因素。
- Semi arid region of Chinese Loess Plateau 黄土高原半干旱地区
- The relationship of soil nutrient cycling characteristics with productivity of terrace millet on hilly loess plateau. 黄土丘陵区梯田谷子养分循环特征与生产力关系的研究。
- Aeolian sand, distributed extensively around China?s arid and semi arid zones, is the main bearing body of wind erosion in China. 风成沙广泛分布于我国干旱与半干旱地区,是我国风蚀与风沙活动的主要载体。
- Abstract The key technique of mapping of channel network in hilly loess region is the automated extraction technique of the channel network. 摘要黄土丘陵沟壑区沟谷网络自动制图技术的核心是沟谷网络的自动提取技术。
- Water application furrow seeder for arid and semi arid region can carry on the watering operation as sowing and fertilizing with the objective of seedling prevention. 施水沟播机可在起垄施肥播种的同时进行施水作业,从而解决了干旱和半干旱地区的播种保苗问题。
- The key technique of mapping of channel network in hilly loess region is the automated extraction technique of the channel network. 黄土丘陵沟壑区沟谷网络自动制图技术的核心是沟谷网络的自动提取技术。
- The situation of water resources deficiency is very scrious in the large areas o f the arid, semi arid even semihumid of Huabel Plain, endangering the agricultur al sustainable development. 华北平原广大的干旱、半干旱甚至半湿润区,水资源形势严峻,威胁农业持续发展。
- The relationship of erosion and sediment yield and the effect of rainfall runoff on sediment delivery ratio of basin system are discussed based on data of Dalihe in the gullied hilly loess areas. 根据大理河流域水文测验资料,探讨了黄土丘陵沟壑区流域系统泥沙输移比的年际与次降雨时空变化特征和次降雨径流对泥沙输移比的影响及影响次降雨泥沙输移比的暴雨洪水能量转换机制。
- Management of chestnut plantings on arid hilly land 旱薄丘陵山地板栗园的土壤管理技术
- Hilly loess plateau in middle of Gansu province 陇中黄土高原丘陵区
- Dioscorea opposita Hilly Loess Regions 黄土丘陵区
- STUDY OF AUTOMATED MAPPING OF CHANNEL NETWORK IN HILLY LOESS REGION 黄土丘陵沟壑区沟谷网络自动制图技术研究
- Soft-ridged bench terrace design in hilly loess region 黄土丘陵区软埂梯田复式配置技术
- Quality assessment of erosion soil on hilly Loess Plateau 黄土丘陵区侵蚀土壤质量评价
- He jammed his hat on angrily arid went out. 他怒气冲冲地使劲戴上帽子,走了出去。
- How can people make a living in this arid area? 这片不毛之地上的人们怎么谋生呢?
- Studies on the effects of bamboo-shape site preparation on survival rate of afforestation in arid hilly areas in western Liaoning 辽西干旱丘陵区竹节壕整地对造林成活率影响的研究
- Effect of Different Mulch Materials in Low Temperature and semi Arid Region on the Space-temporal Distribution of Ground Temperature and Moisture 低温半干旱区不同覆盖物对地温和水分时空分布的影响