论文部分内容阅读
紫穗槐和沙柳是榆林市沙区人工固沙造林的先锋树种。本文从榆林榆阳区补浪河乡近年来的治沙造林成果入手．分析了榆阳区林业工作中治沙防沙和天然林保护等主要措施和手段，提出了用已有的林业治沙科研成果营造沙地长期稳定的灌木治沙林等可行而有效的办法和措施。
从林权制度改革考量营造长期稳定灌木生态林的治沙造林前景
【摘 要】
：
紫穗槐和沙柳是榆林市沙区人工固沙造林的先锋树种。本文从榆林榆阳区补浪河乡近年来的治沙造林成果入手．分析了榆阳区林业工作中治沙防沙和天然林保护等主要措施和手段，提出了
【机 构】
：
榆林市榆阳区林种站,陕西榆林,719000;榆林市榆阳区治沙站,陕西榆林,719000
【出 处】
：
西部大开发：中旬刊
【发表日期】
：
2012年4期
其他文献
Lung epithelium is the primary site of lung damage in various lung diseases.Epithelial cell apoptosis has been considered to be initial event in various lung di
Objective To develop a high-throughput screening assay for Farnesoid X receptor (FXR) agonists based on mammalian one-hybrid system (a chimera receptor gene sys
Acetylcholinesterase (AChE) inhibitors are an important class of medicinal agents used for the treatment of Alzheimers disease. A screening model of AChE inhibi
Recruitment of stem cells by hepatocyte growth factor via intracoronary gene transfection in the pos
We aim to study the amelioration effect of adenovirus5-mediated human hepatocyte growth factor gene transfer on postinfarction heart failure in swine model. Twe
Three-dimensional Finite Element Analysis of the Mechanical Stress on Root from Orthodontic Tooth Mo
In order to study mechanical stress on root from orthodontic tooth movement by sliding mechanics, a 3-dimensional finite element model incorporating all layers
Effect of TGF-β1 on the Expression of IL-12, IL-15, IL-18, IL-4 and IL-10 in Heart Transplantation R
To investigate the effect of TGF-β1 on the expressions of IL-12, IL-15, IL-18, IL-4 and IL-10 in heart transplantation rejection in rats, a model of rat cervic
To investigate the relationship between MDR1 and MDR3 gene and drug resistance to cisplatin of ovarian cancer cells. Two siRNAs (MDR1, MDR3) which specifically
Immunization of mice with cells from juvenile worms of Schistosoma japonicum provides immunoprotecti
To validate the protective efficacy against schistosomiasis by immunization with cells from juvenile Schistosoma japonicum in a murine model and to analyze poss
To establish a better method of primary culture for alveolar epithelial type Ⅱ cells (AEC Ⅱ) and to study its bionomics, alveolar epithelial type Ⅱ cells wer
Comparison of 1.5% lidocaine and 0.5% ropivacaine epidural anesthesia combined with propofol general
Objective:To compare the effects of epidural anesthesia with 1.5% lidocaine and 0.5% ropivacaine on propofol requirements,the time to loss of consciousness (LOC