疏林地

TM472彩色合成图有利于幼林、疏林地、荒山等的判读；

The TM472 color composite image is helpful to the interpretation of young growth , sparse woods and barren mountain .

天山中部林区疏林地分类及改造措施的初步研究

The classification and reforming measures for open woodland in the Tianshan

此外，长期受人为干扰、结构简单的疏林地土壤含水量及表土层中有机质、全N、速效态P、K元素含量都明显地低于其它两类林地。

The soil water content and the content of organic matter , total N and available P , K in the surface soil of the open forest were lower than that of the other forests .

疏林地914.3hm2，占3.31%；

The stocked land 914.3 hm2 , account for 3.31 % ;

天山云杉疏林地改造利用研究

Study on Remaking and Utilization at Shrenk Spruce Open Forest Land

根据甘肃河西地区人工林的特点，提出了在调查方法上的特殊性；有林地和疏林地概念的理解；

Based on the characteristics of artificial forests of He'xi area in Gansu , particularity of investigation methods has been proposed .

四级风险区主要分布在南部和中部地区的灌木林地、疏林地以及中覆盖度草地。

The forth-class risk zone locates the southern and middle area of shrub land , open woodland and the medium coverage grass land .

相反，林地、疏林地和灌木地在降雨过后能很快达到峰值，属降水同步型。

In contrast , woodland , sparse woodland and shrubland can soon reach their peaks after a rainfall and they are synchronous type of precipitation .

在1、2、3、5林班森林斑块破碎化程度大于灌木林、未成林、宜林地和疏林地；

Patch fragmentation index of forest was higher than that of shrub , afforestation land , suitable forest land , woodland in No. 1,2,3,5 compartments .

各土地利用类型的变化速度依次为其他林地水域疏林地未利用地灌木林地城乡用地有林地耕地。

The rate of change of land use was as followed : other woodland water open forest land unused shrub land Rural Land woodland arable land .

结果表明：组成流域的11类景观要素类型中，林地在流域植被景观中占主体地位，尤其以温性针叶林最为突出；疏林地、灌丛和稀疏灌草丛是流域中重要的植被覆盖类型；

The results showed that : among the 11 types of the vegetation landscape , forest predominates among the whole watershed vegetation landscape pattern , especially the temperate coniferous forest ;

包括所有天然林、大部分宜林荒山荒地和疏林地在内区划为生态公益林的林地面积占国土面积的54.8%，占林业用地面积的88.4%。

All Secondary forest , a majority of run-down land and sparse forestland mark out as public benefit forest , and it makes for 54.8 percent of nation area or 88.4 percent of forestland .

有林地在研究区内呈集群分布而前期灌木林和后期疏林地近似呈随机分布。

Under the influence of the environmental heterogeneity and human activities , the distribution pattern of the forest land was the clustering style but the brush and the open forest approximately had the random spatial distribution pattern .

结果表明：林业用地、有林地、苗圃用地面积增加，疏林地、新植林地及灌木用地面积明显减少，使森林覆盖率从1958年的60.5%提高到85.0%；

Result showed that the forest coverage rate increased from 60.5 % to 85.0 % due to the increase of forest land , woodland and nursery land as well as the decrease of sparse woodland , brushland and newly planted woodland .

相同条件（降水，地形）下，不同土地利用类型产生径流的大小顺序依次为：荒地>农田>休耕地>草地>疏林地>灌木。

Under the same physiographic condition ( e.g. , precipitation and topography ), runoff varies with land uses in the following decreasing order of intensity : wasteland > cropland > fallow > grassland > woodland ( low cover ) > shrub .

灌木疏林地啮齿动物群落类型与荒坡林地啮齿动物群落类型的相似度较高，与退耕林地啮齿动物群落类型的相似度麟游群落的相似度低，而永寿的相似度高；

Alike degree of rodent community in scrub open forest and rodent community in desolate slope is higher , with the community alike degree , the rodent community in linyou reuse farmland is low , but the community in yongshou is high ;

然而，不同土地利用类型产生侵蚀的大小顺序不同于径流，其顺序依次为：农田>荒地>休耕地>草地>疏林地>灌木。

However , the dependency of soil erosion on land uses is different from that of runoff Specifically , soil erosion varies with land uses in the following decreasing order of severity : cropland > wasteland > grassland > woodland ( low cover ) > shrub .

受地下水位下降的影响，14年间有林地、灌木林地与疏林地的斑块面积分别减少了67%、54%与31%，斑块数量减少35、42与50块。

Impacted by the descend of groundwater depth , the area of forest land , shrub land and open-canopy land was decreased by 67 % , 54 % and 31 % , and the number of their patches was decreased by 35,42 and 50 , respectively .

结果表明，景观变化主要体现在：（1）随着人类土地开发利用的程度提高，区域景观趋于多样化和均匀化，主要是以人类活动造成的灌木疏林地、低质草地和草地的退化为主；

The results are as follows : ( 1 ) The diversity and evenness of the landscapes in the reclamation area are increased along with the exploitation and utilization of land resources , which are dominated by the degeneration of the irrigated sparse shrubbery lands , low-quality grasslands and grasslands ;

在图2中，实线代表一块未疏伐林地的正常发展的理想化形式。

In Fig.2 The solid line represents an idealized version of the normal progression of an unthinned stand .

对有林地、未成林造林地和天然草地的影响效应滞后5年；对灌木林地的影响效应滞后3年；对疏木林地、改良草地、人工草地的影响效应滞后1年。

The time lag of impact for woodland , unwoodland and natural grassland is 5 years , shrub 3 years . Of sparse forest land , improved grassland , artificial grassland lagging effect for 1 year .