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- Research on Evaluation Model for Riverbank Protection Forest Sand Accumulation along the Main Branches of Changjiang River in Sichuan Province 川江中下游护岸林淤沙能力评优估模型的研究
- Time is water and has gold left and sand drift. 时间是水,淘金流沙。
- It was the tip of a saddle protruding from beneath a sand drift. 这是从流沙层里露出来的马鞍的尖部。
- Use recyclale paper is also a way to protect forest resources. 使用再生纸也是保护森林资源的一个途径.
- The sand drifted along the fence. 沙沿着篱笆堆积起来。
- The sand drift areas in north Shaanxi Province are located in the agro-pastoral ecotone in the Loess Plateau. 陕北风沙区地处农牧交错带，气候干旱，是一个从沙区向黄土区的过渡区，自然环境复杂、恶劣。
- So, it can be concluded that sand drift activity and aeolian landform forming are mainly taking place in warm dry period. 可见，区内风沙活动及风成景观的塑造过程，主要是在暖干期进行的。
- As a kind of special soil, aeolian sandy soil mainly lies in arid and semiarid areas where sand drift activity is very strong. 沙土是存在于干旱、半干旱地区的一种特殊性土,其岩土工程性质与风沙环境紧密相关。
- We must put in practice a strict land management system and measures to protect forest and grasslands. 坚决实行最严格的土地管理制度和保护森林资源的措施。
- Establishment of Cutting Orchard of Improved Variety for Coastal Protection Forest of Casuarina spp. 沿海防护林木麻黄优良品种采穗圃营建技术的研究。
- Study on Affection of Water Resources Protection Forest to Water Quality of Miyun Reservoir in Beijing, China. 北京密云水库水源涵养林对水质的影响研究。
- Protection Forest on sandy meadow was established by mixing broadleaf trees to raise stability of sandy meadow system. 为提高草沙地系统稳定性,采用阔叶树混交方式营建草沙地防护林。
- Chemical property of precipitation in Pinus tabuleaeformis water resource protection forest in Miyun Reservoir wa-tershed. 密云水库集水区人工油松水源保护林降水化学性质研揪。
- Construction of ecological environment forest, urban protection forest, water and soil conservation, production and comprehensive utility and development of nursery stock. 生态环境林、城市防护林建设,天然林资源保护,水土保持,林业苗木生产及综合利用开发等。
- Discusses regional construction pattern of optimal protection forest system to esta-bilish a symbiosis relation between protection forest system and ecosystems. 生态经济型防护林体系建设模式系统就是体系的建立和优化发展的方法系统。
- A state environmental official, James L. Caswell, said that such logging would in general be intended to protect forest health and manage fire risks. 一个叫做JamesL.;Caswell的州环境官员说这种开采基本上会是出于森林保护和防火的目的。
- The results show that Populus simonii x nigra and Pinus sylvestris vat. mongolica protection forest can increase the soil waterstorage capacity in shelterbelt networks. 防护林可增加林网内土壤贮水量；
- Visible in Gusev Crater are rocks, rusting sand, a Martian sundial, vast plains, nearby peaks, faraway peaks, and sand drifts. 在陨石坑里可以看到岩石、红褐色的沙子、火星上的日晷、辽阔的平原、近处和远处的山峰还有沙流。
- Study on sand Drift in Strong Wind Region in Gravel Desert 砾漠大风地区风沙流研究
- These lures are surrounded by nets and placed in open fields next to a protected forest in southern Brazil. 这些诱饵的四周张网围布，放置在南巴西的一个受保护森林旁的开阔地上。
