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Landscape Characteristics Analysis And Management Plan Of Huntiegou Basin

Posted on:2015-05-10Degree:MasterType:Thesis
Country:ChinaCandidate:X Q LvFull Text:PDF
GTID:2283330467457842Subject:Forest ecology
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Forest resources are valuable resources, the protection of forest resources andefficient use of forestry in China are facing great challenge. In recent years with theadvancement of sustainable development in the world, operation and management ofthe forest is more valued.Through the investigation of the forest resources in MulanWei Chang Huntiegou basin, based on the survey data, according to the type of forestlandscape+age class+The slope method to monitor the classification of huntiegou,can be divided into20types, according to the class data to calculate the ratio of thearea of each landscape classification area and the total area, research results shadyartificial Larix gmelinii middle-aged forest landscape elements occupied the largestarea is61.0hm2, the smallest is the shady elm near mature natural forest,1.7hm2, themaximum ratio of plaque area of Shady larch artificial and the total area is0.20, Thesmaller ratio of the Landscape elements is Plaque area sunny natural elm young forestand the Shady natural birch forest in age0.13. Through the analysis of diversity index,evenness, dominance can be seen in the distribution of landscape elements is morebalanced. Analysis of the ratio to the total number of all types of plaque plaquenumbers reflect how many types of plaque, the natural elm sunny patches of youngforest accounted for the largest,0.156, the number of nearly cooked sunny naturalbirch forest, middle-aged forest valley natural birch, natural birch shady young forest,sunny natural birch young forest, mature forest near elm natural sunny, shady elmnear mature natural forests, valleys artificial pine forests, sunny slope Mongolian oaknatural near mature forests, shady natural Mongolian oak forests middle-aged is one,so the smallest proportion of plaque is0.016. Analysis of porosity can reflect thedistribution of this plaque in the landscape. The porosity of sunny largest natural elmyoung forest is largest, as0.0329, its distribution is most widely and the affection ishighest in the general landscape. Followed by middle-aged forest shady artificialLarix gmelinii, is0.0296. Fragmentation of the landscape is the degree offragmentation, reflecting the complexity of the spatial structure of the landscape. Thebiggest Fragmentation is the plaque of shady elm near mature natural forests,0.5882,The Sunny natural birch near mature forest is smallest,0.0658.In the basin, based on business objectives of the forest in huntiegou managementput forward a reasonable management plan, the type of huntiegou is natural birchforest, area is73.2hm2; artificial Larix gmelinii forest, area is122.0hm2; naturalmountain Kyorin, area is4.8hm2; natural elm forest area is90.6hm2; artificial poplar,area is18.3hm2; artificial pine forests area is4.3hm2; natural Mongolian oak forest,area is46.1hm2these seven types of plots to develop the management plan. The ues of huntiegou forest is keepping soil and water, so the direction of operations areultimately forming multiple layers, uneven-aged, mixed forest, keeping the foreststructure of original to fell the trees which growing defects,growth is too dense,nonurturing promising, let other trees to good growth,So this piece of forest can play agood ecological benefits while also taking into account the economic in the next fewyears and even decades, to sustainable management.For a variety of management types, according to the different age stages, designdifferent management technology, young forest by maintaining a certain density,culture good stem form, and control herbs by pruning, support the advantages ofwood or target tree, to provide adequate space and nutrients for small seedlings;thinning the middle age forest,preserves the good growth condition forest, removaldid not foster future forest, provide better resources to nurture promising tree; nearmature forest and mature forest clearcutting or selective cutting can be used, becausethe ecological function is very importent so we use selection cutting, fell theharvesting tree, after cutting, should also pay attention to update, in the naturalregeneration of bad circumstances adopt manual update.After a business cycle, the original near mature forest, middle age forest patchesfor the progressive transformation of coniferous and broad-leaved mixed uneven agedforest patches, such as those of natural birch near mature forest transformation for thesunny of natural birch, pine, forest transformation of natural birch in shady slope toslope of natural birch, pine mixed forest of the original oil; the young forestconservation species composition invariant. So the business after the patch iscomposed of20kinds of change in the original17. Which is the largest area of NorthMongolia artificial larch, oak mixed forest patches,61hm2. area is the smallest naturalbirch mixed forest of Chinese Pine Valley, plaque,1.8hm2.
Keywords/Search Tags:Basin, Landscape, Characteristics, The Management Plan
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