您要查找的是不是:
- The reasons and control measures for agricultural protection forest zone impact the farmland 农田防护林带胁地原因及控制措施
- Study and Discussion on Main Technical Index in Construction of Agricultural Protection Forest in Easten Part of Heilongjiang Reclamation Region 黑龙江垦区东部农防林建设主要技术指标研究与探讨
- agricultural protection forest 农田防护林
- 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.
- Crop protection products chemicals agricultural protection products. 用以改善或保护植物的生长、收获和储存的药品。
- 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;
- Afterthought on Chinese Agricultural Protection 我国农业保护问题的再思考
- Chinese agriculture already entered new level, the challenge of the become acute with congenital inadequacy of agriculture, binary contradictory economy and WTO calls agricultural protection agog. 中国农业已进入新的阶段,农业的先天不足、二元经济矛盾的激化和WTO的挑战急切呼唤农业保护。
- 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。
- Note:Total area of afforestation include 100000 hectares of planted protection forests. 注:全国合计造林面积中包括军事管理区100000公顷人工营造的防护林。
- The main duties and responsibilities of a forest protection person are to patrol and protect forests and stop activities that damage forest resources. 护林员的主要职责是: 巡护森林,制止破坏森林资源的行为。
- The development of the straw-based panel also has the social benefits of resolving the rural problems and ecological benefits of protecting forest and reducing pollution. 除了提供木材替代产品外,麦秸板的发展还具有有助于解决“三农”问题的社会效益,保护森林,减少污染的生态效益。