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- arid sandy area 干旱风沙区
- No-linear Ecological Model of Oasis Forest Coverage in Arid Sandy Areas 干旱风沙区绿洲森林覆盖率的非线性生态模型
- 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。
- I was told that sixty years ago the place had been an arid sandy flat. 正是苹果成熟的时候,一踏进绿色海洋般的果林里,就闻到一股浓烈的苹果香气。
- 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。
- 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 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。
- 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。
- At the bottom of the bay, in the sandy area, occasionally, huge Manta Rays, and often, leopard rays are seen resting on the sandy flats. 在海湾底部有沙的部分,有时你还会碰到在沙地上休息的大蝠鲼鳐和豹斑鳐,在这我们见过成群的圣海伦海?
- Seedl ings of P.sylvestris var.mongolica accumulated a l arge amount of dry matter during seedling ages,and fitted to grow in sandy area. 苗木在苗期积累了大量干物质,根系及径生长旺盛,樟子松在苗期非常适合沙区。
- The resources status of shrub in sandy area, production situation and development trend of panelboard made from shrub in sandy area were introduced. 叙述了沙生灌木资源状况以及沙生灌木材人造板的生产现状和发展趋势。
- The zoo is remodeling her indoor and outdoor spaces, making both about twice as large as before and adding a sandy area. 动物园为此特地对麦吉的生活空间进行了改造,把室内和室外空间都扩大了一倍,还增加了一块沙地。
- Semi arid region of Chinese Loess Plateau 黄土高原半干旱地区
- The growth condition and adaptability of bamboo are good in Coastal sandy area, but it has a bit of contrast on account of difference in adaptability. 五种竹子在滨海沙地的生长状况均较好,适应性较强,完全适合在东南沿海沙地种植,但因各竹子的生物学特性不同,生长状况也存在一定的差异性。
- Principal component analysis model of social assessment for shelterbelt project in sandy area is established based on reviewing social assessment on forestry ecological project. 摘要在对林业生态工程社会影响评价进行回顾和评论的基础上,建立风沙区防护林体系工程社会影响评价主成分分析模型。
- It is significant to assess the risk of aeolian sand disaster(ASD) in city for urban security and sustainable development in sandy area of northern China. 开展风沙灾害危险度评价研究,对促进中国北方沙区城市的安全与可持续发展具有重要意义。
- Abstract: In the paper,the biological effects of protective plantation of sparse woods on grassland and pastureland in the semi-arid windy and sandy area were studied. 摘 要: 对半干旱风沙区疏林式草牧场防护林的生物效益进行了研究。
- 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?
- At the bottom of the bay,in the sandy area,occasionally,huge Manta Rays,and often,leopard rays are seen resting on the sandy flats. We've seen schools of opelu here that numbered in the thousands. 在海湾底部有沙的部分,有时你还会碰到在沙地上休息的大蝠鲼鳐和豹斑鳐,在这我们见过成群的圣海伦海?,数量可达上千只。
- L-324 of America black pop-lar and L-35, W-141, I-69 of Euro-American poplar are fit to the farm-shelter forest network of alluvial sandy area of old yellow river in Shandong province. 山东省黄河故道冲积沙地适宜于营造农田防护林网的优良无性系为美洲黑杨类的L-324,欧美杨类的L-35、W-141、I-69等。