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- The revegetation of the mining wastelands during the ecological restoration is expounded,and two issues are mainly analyzed:improvement of soil matrix and selection of plant species. 阐述了矿业废弃地生态恢复中的植被重建,主要对植被恢复中基质改良和植物种类选择两个环节进行了分析。
- Improvement of soil matrix 基质改良
- Artifical improvement of soil fertility in a regraded forest ecosystem by using municipal sewage sludge. 城市污泥对退化森林生态系统土壤的人工熟化研究。
- Moreover, some effective measures for decreasing the occurrence of pest and disease on street afforestation trees are put forward in terms of the improvement of soil properties. 从改善街路土壤性质入手，提出了相应的减少街路绿化树木病虫害发生的有效措施。
- So the improvement of soil under tamping hole is far better than that around the hole, and the distance between spots should not be too far when designing. 夯能的传播以一维传播为主,即形成了夯坑下土体加固效果远大于坑周土体的现象,在设计时应注意夯点间距不宜过大。
- There are some clods of soil on the mat. 垫子上有些土块。
- This kind of soil contains much alkali. 这种土壤含碱丰富。
- It's rich there because of the fertility of soil. 因为土地肥沃，那儿很富裕。
- Clods of soil stuck to the spade. 土块黏在铁铲上。
- Formulations of stability calculation of landslides are presented by the improvement of the force analysis of soil slices with random distribution of pore water pressure in slip zone. 通过对滑坡土条的受力分析进行改进,建立起能考虑滑带内存在任意孔隙水压分布情况下的稳定性计算公式。
- Higher nematode densities were found under V.zizanoides cv.Karnataka and hybrid pennisetum,indicating that the two species have good potential for the improvement of soil fertility. 在所选的植物中,Karnataka和杂交狼尾草在土壤改良和土壤生物学效应方面有更好的潜力。
- Because of the and improvement of soil fertility aeration,the absorption of N, P, and K nutrients by rice plant was improved in same manner. 而且由于土壤肥力的提高以及土壤通气状况的改善,也促进了水稻对N、P、K养分的吸收。
- The weed biodiversity was decreased with the improvement of soil nutrient status. There were 3-5 weed populations in treatments NPK and NPK plus organic materials,and 6-8 populations in treatments CK,N,NK and NP. 随着土壤养分状况的改善,杂草的物种多样性逐渐减少,氮磷钾及其与有机物料配合施用处理(NPK、SNPK、M1NPK、M2NPK)的杂草种群为3~5个,对照及氮、氮磷、氮钾处理(CK、N、NP、NK)杂草种群为6~8个;
- A limiting factor in the improvement of health is the lack of doctors. 对改善健康状况的一个限制因素是缺少医生。
- There is no room for improvement of your dance. 你的舞跳得再好不过了。
- The applied science of soils in relation to crops. 土壤学和作物相关的应用土壤学
- De-farming and restoring forest are principal policies presently for the improving of eco-environment and the reducing of soil and water loss in the Loess Plateau. 摘要退耕还林还草是目前黄土高原整治生态环境和控制水土流失的主体政策。
- Skin particles are a form of soil. 皮肤碎屑是污垢的一种形式。
- Successful Business needs improvement of service. 要生意兴隆，就要提高服务质量。
- Make each day an improvement of the day before. 每天起来都要进步。
