干旱区生态环境知识资源中心(Arid): 干旱半干旱区人工林密度调控技术研究现状及趋势

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	干旱半干旱区人工林密度调控技术研究现状及趋势
其他题名	Research Status and Trend on Plantation Density Control Techniques in Arid and Semi-arid Regions
	玉宝; 王百田; 乌吉斯古楞
来源期刊	林业科学研究
ISSN	1001-1498
出版年	2010
卷号	23 期号:3 页码:472-477
中文摘要	水资源日趋紧张已是全球性生态问题.我国的干旱、半干旱、亚湿润干旱地区的面积分别为142.7、113.9、75.1万km2.其总面积为331.7万km2,占国土总面积的34.6%[1].这些地区降水量小,蒸发量大,植被稀少,生物量生产力低,属我国生态建设重点和难点地区.加强生态建设,恢复植被,需要实施大面积人工造林,提高经营管理技术,确保高的造林成活率和保存率.
英文摘要	This article reviewed the research status of the plantation density control techniques based on domestic literature, and discussed the technical issues on plantation density control in the arid and semi-arid region. Nowadays, more studies focused on modeling study, but with less mechanism; more on the pure plantation with similar ages and site conditions, rather than mixed forests; and more on the fast-growing timber plantation in South, but less on the plantation in arid and semi-arid regions. It was imperative to study the density control techniques which focused on the water factors, such as the techniques of water production function in the arid and semi-arid regions. The traditional density control techniques aimed to attain the highest production by relating the system density and production. The density control techniques based on water production function set the point of entry with the water factors, complied with the principle of water supporting capacity. The timely density control based on the amount of available water in the plantation ecosystem could ensure the best balance among the economic, ecological and social benefits of forests. It would be also beneficial to avoid from or reduce the problems of soil degradation, soil drying and groundwater decreasing caused by improper afforestation, and more suitable for the density management of plantation in the arid and semi-arid region
中文关键词	干旱半干旱区 ; 人工林 ; 密度调控
英文关键词	arid and semi-arid region plantation density control
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Forestry
WOS研究方向	Forestry
CSCD记录号	CSCD:3968031
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225378
作者单位	玉宝, 北京林业大学水土保持学院, 北京 100083, 中国.; 王百田, 北京林业大学水土保持学院, 北京 100083, 中国.; 乌吉斯古楞, 北京林业大学林学院, 北京 100083, 中国.
推荐引用方式 GB/T 7714	玉宝,王百田,乌吉斯古楞. 干旱半干旱区人工林密度调控技术研究现状及趋势[J]. 北京林业大学,2010,23(3):472-477.
APA	玉宝,王百田,&乌吉斯古楞.(2010).干旱半干旱区人工林密度调控技术研究现状及趋势.林业科学研究,23(3),472-477.
MLA	玉宝,et al."干旱半干旱区人工林密度调控技术研究现状及趋势".林业科学研究 23.3(2010):472-477.