论文部分内容阅读
从乌审旗天然植被退化的主要原因入手，充分阐述了封育禁牧恢复天然植被是改善乌审旗生态环境的有效途径，进而促进天然植被的恢复与发展，达到防沙治沙、保持水土、兴利除害等目的，最终获得美好的生态环境。
乌审旗封育禁牧效果分析
【摘 要】
：
从乌审旗天然植被退化的主要原因入手，充分阐述了封育禁牧恢复天然植被是改善乌审旗生态环境的有效途径，进而促进天然植被的恢复与发展，达到防沙治沙、保持水土、兴利除害等目的
【机 构】
：
乌审旗林业局,国家林业局调查规划设计院
【出 处】
：
内蒙古林业科技
【发表日期】
：
2007年1期
其他文献
大树移植是城镇园林绿化的主要手段之一,在城镇园林绿化中的作用日渐显现,并发挥着越来越重要的作用。在城镇绿化中,大树移植见效快,不易遭受人为破坏的优势已经得到各方面的
Experimental Study on Shear Lag Effect of Partial Cable-Stayed Bridge and Elasto-Plastic Seismic Ana
The project of Xiaoxihu Yellow River Bridge in Lanzhou is chosen as partial cable-stayed bridge. To get the shear lag effect and anti-earthquake performance of
本研究针对北美兰云杉植物在pHS-9的碱性土壤上育苗其出苗率和保苗率低，且生长缓慢，原有森林培育技术难以有效地解决这一生产上的实际难题，试图采用菌根化生物技术进行育苗，对其
A 2-D laminar flow model was established for CFD analysis of air-flow between louvered fins. Two louvered fins are studied based on commercial software FLUENT.
<正>尊敬的大会主席,各位同仁,大家好:很高兴与大家相聚在这里,共同学习"脊柱定点锤正复位法"。我1983年师承中国道教龙门派著名医家王道平老师(我本家大爷),学习草医药知识
会议
In order to evaluate recycle economy of end-of-life vehicles quantitatively,an economy model based on a recycle model of end-of-life vehicles and recycle cost a
通过分析京津风沙源治理工程的基本状况,指出在工程已经产生了可喜的公益效益的情况下,如何在保护工程成果的基础上,将生态建设的成果与农牧民的私人产品生产过程联系起来,已
An inherent strain method was applied to the welding deformation analysis of left girder of GM's Buick's chassis underframe assembly. Three models are u
Two Phase Pressure Drop Performance of Refrigerant in a Small Horizontal Smooth Tube with 2.5 mm ins
Two-phase flow pressure drop measurements were made during the phase change heat transfer process of R22 in a small horizontal smooth tube with 2.5 mm inside di
Refrigeration Performance Analysis and Its Applicability of a New Metal Hydride Couple in Auto Air-c
With COP and dynamic characteristics in refrigeration cycle as criteria,a new metal hydride couple--LaNi4.61Mn0. 26Al0. 13/La0. 6Y0. 4Ni4.8Mn0.2 was selected by