您要查找的是不是：
- The settlers irrigated the arid land. 移民们灌溉乾燥的土地。
- 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。
- The farmers have turned the arid land into irrigated fields. 农民已经把那旱地变成了水浇田。
- What they are doing is transformation of arid land into irrigated fields. 他们正在做的工作就是变旱地为灌溉地。
- 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。
- Farmers suBdued the arid lands of australia. 农夫们开垦澳洲的乾燥土地。
- 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。
- Ardeidae bird is one of important species belonging to wet land ecosystem, and regarded as indicator for environmental assessment. 鹭科鸟类是湿地生态系统中重要的生物种类之一,也是环境质量评价的一类指示动物。
- Arid and extremely arid land are deserts, and semiarid grasslands generally are referred to as steppes. 干旱和极度干旱的土地是沙漠，半干旱草原和通常被称为草原。
- They note that the rocky, arid land in winegrowing regions provides farmers with few alternatives to wine production. 他们指出，产酒区土地崎岖不平、贫瘠乾燥，农民几乎别无选择
- The problem of water shortage on Huang-Huai-Hai(HHH) Plain is becoming serious day by day,at the same time it has become a main factor of restricting land ecosystem. 水资源短缺也是广大平原地区土地生态服务功能减弱的主要因素,成为全面建设小康社会所要求的生态环境质量的主要制约因素。
- The arid land in Western China refers to the vast areas in the west of Helan Mountain and the north of Kunlun Mountain. 从中国西部干旱区的界定、自然条件特点的分析出发,结合国家西部大开发战略的实施,指出进行该区生态环境演变与调控研究的重大意义。
- Semi arid region of Chinese Loess Plateau 黄土高原半干旱地区
- Huang Peiyou , Lu Zili, Wang Yuhui, 1996. Establishment of the Mosouwan Oasis and the variation of Holoxylon deserts. Chinese Journal of Arid Land Research 9(1): 61~ 67. 周广胜，王玉辉，张新时，1998.;中国植被/生态系统对全球变化反应的模式研究与展望
- The concept of land ecological safety is the land ecosystem of mankind ensure degree unaffected by ecological destroy and environment pollution in the production, living and health. 土地生态安全是指土地生态系统对人类在生产、生活和健康等方面不受生态破坏与环境污染等影响的保障程度。
- Artificial oases are arid lands transformed by long-term human activities. 人工绿洲是在干旱条件下经长期人类活动改造而形成的特殊景观。
- Land-lake ecozone refers to the functional zone between internal water ecosystem and the land ecosystem, where them is an apparent complexity which attracts attention from geography and geobotany. 摘要水陆生态交错带是指内陆水生生态系统与陆地生态系统之间的功能界面区，其复杂性是地理学和地植物学关注的重要问题。
- Evaporation in arid lands enriches mineral accumulation in their lakes. 干旱土地上的蒸发作用在它们的湖里富集了矿物。
