The Experimental Study Of Manual Synthesis Subalpine Meadow Forest Soil

The Betula ermanii forest belt is the important natural landscape belt in Changbai mountain nature protection area,and also the intermediate belt between conifersous forest and the mountainous region Mountainous region liver moss original Therefore,it has the very important esthetics value and the scientific research value.The Subalpine meadow forest soil mainly exists in the protectorate, the distribution are very few. Because of the traveling economy's starting, a lot of commercial construction and the guesthouse in the Betula ermanii forest belt had been constructed, and destroyed the Betula ermanii forest belt's vegetation and soil,seriously affected the Changbai mountain nature protection area's development. In order to restore the natural prototype of the Betula ermanii forest belt, This research take the imitates the natural prototype principle and the rule of the series nature as the instruction, using the raw material Baijiang soil's surface layer humus soil and the volcanic ash outside the Changbai mountain nature protection area, synthesis the soil which Physics and chemistry nature Simila with Subalpine meadow forest soil,and solute the soil question of Betula ermanii forest belt's restoretion .The study is divided into a foreword,general situation of the study area,the rationale of the experimental and the designs of the experiment,the result and analysis of the Subalpine meadow forest soil,the result and analysis of the Synthesis soil,the conclusion and discussion.At chapter four,it mainly selected nine main references of the machinery composition, PH, organic matter, the total nitrogen, the total phosphorus, the total kalium, the available nitrogen, the available phosphorus, the available kalium,and by combine with SPSS and EXCEL,though the analysis and the separation analysis,the author determined the instruction target of the Subalpine forest meadow soil,and also take the as the synthesis soil's instruction target.Through the analysis of the subalpine meadow forest soil's physics and chemistry nature,we conclude that:1. the machinery composition of the subalpine meadow forest soil has the obvious characteristics:â‘ it has obviously, the soil body includes the broken stone, the broken stone's content downward gradually increased by the surface layer.â‘¡The Clay soil's contents are few, Soil textures are light. the coarse sand, the fine sand soil and the silt soil have a higher content, only the clay soil's contents are low.2. Though the Subalpine Meadow forest Soil's body are thinner,the organic content is very high,in O layer,its content is approximately 25.25g/100g,by O layer downward,the contents reduce in turn.The total kalium content is also higher, in O layer, its content is approximately 2.36g/100g ,also downward gradually by O layer, The total nitrogen , the total phosphorus's contents are general ,the available nutrient content is less.This article rests on the nature of the synthesis soil raw material, designed 12 kinds of soil's suntheses plan;through the comparison between each plan instruction index'content and Subalpine forest meadow soil instruction index's content,obtain that the F9 plan is the best synthesis soil plan.finally uses the primary vegetation Betula ermanii,Ass. Deyeuxia angustifolia and Ass. Rhododendron chrysanthum as the cultivate crops,through two month-long cultivations examination,proving that the each kind of examination plant's growth situation is good in F9 plan .Through the manual synthesis soil's method,this research hal solved the soil problem which in the mountain birch forest vegetation recovery procedure needs,provide a new method d for the protectorate vegetation's production.