By the integration of GIS and the data obtained from forest resource inventory in 1987 and 2000, the analysis of spatial pattern of forest resource in Jinsong forest farm in Baihe forest bureau was carried out and the maps of management based on current resource status were produced.

利用1987年和2000年兩期森林資源二類調(diào)查數(shù)據(jù)国产精品-色哟哟、林學(xué)圖亚洲欧美中文日韩V日本、地形圖和GIS技術(shù)相結(jié)合，對長白山區(qū)白河林業(yè)局勁松林場的資源空間格局變化進(jìn)行分析欧美一级媱片^片久久精品，并在現(xiàn)有資源狀況下大伊人一区在线视频，根據(jù)森林采伐規(guī)程，通過GIS技術(shù)對林場進(jìn)行經(jīng)營利用規(guī)劃色哟哟亚洲，生成經(jīng)營利用主題圖乱色熟女一区二区免费视频。

Research on the ecological restoration area in Wuxi country in the reservoir area of three gorges, which considering China Armand pine and mason pine as the dominant plant of the mixed broadleaf-conifer forest including fir-mason pine of mixed forest, cypress-mason pine of mixed forest and pure filbert forest of the soil.

對三峽庫區(qū)巫溪縣生態(tài)修復(fù)區(qū)以華山松為優(yōu)勢樹種的針闊混交林、馬尾松為主的針闊混交林人人看黄视频、杉木-馬尾松為主的混交林国产精品原创综合、柏樹-馬尾松混交林、榛子純林與對照地土壤的化學(xué)性質(zhì)進(jìn)行了對比研究免费在线视频青青无码。

Solid managing technique of forestry land includes forest-shrub-grass mode, fruiter-crop mode, forest-crop mode, forest-herb mode, forest- fungoid mode etc.

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In this study, the northern catchment of the research site was selected. The main vegetation types included pine woodland, meadow, ecotone between hemlock forest and meadow, hemlock forest, ecotone between hemlock and spruce forest, and spruce forest.

本研究樣區(qū)為塔塔加鞍部北面集水區(qū)我想看免费一级黄片，包括各植群與其相鄰的推移帶：二葉松疏林區(qū)、草原區(qū)精品99r、草原與鐵杉森林推移帶色99色网站、鐵杉森區(qū)a∨在线视频、鐵杉與云杉林推移帶及云杉森林區(qū)，并於所規(guī)劃集水區(qū)外選取兩參考樣點：二葉松森林與麟趾山草原區(qū)A片视频网站在线免费观看。

School of forest resources is primarily dedicated to teaching and research forestry resources including agricultural economics, general botany, general zoology, ichthyology, herpetology, genetics, mammalian anatomy, general ecology, environmental science, microbiology, invertebrate zoology, vertebrate physiology, forest hydrology, forest ecology, forest resource economics.

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Through the preliminary study on the management of the population of Athyrium multidentatum, we found that the community of artificial Larix gmelinii forest has a high value of usage. Planting the population of Athyrium multidentatum may make us to improve the level of intensive management, and through the test this method is available. The population of the spacing in the row of forty cm in the community of Betulla platyphylla forest and the population of the spacing in the row of eighty cm in the community of artificial Larix gmelinii forest have the largest hight, leafstalk diameter and less herb coverage. The foodstuff technology of ferns is backward and the products are less, so we must improve the study on the usage of forest ferns.

通過對猴腿蹄蓋蕨種群經(jīng)營措施的初步研究，我們得出落葉松人工林群落是一個極具開發(fā)價值的群落无码免费毛片一区二区；人工移栽猴蹄蓋蕨種群，可提高集約化管理程度毛茸茸性XXXX，經(jīng)過試驗中文字幕在线第一区，方法可行；白樺林群落株距40cm的猴腿蹄蓋蕨種群高度可以免费观看一级毛片黄a、葉柄直徑均最大影音先锋国产一二三区资源，且雜草蓋度較小视频一区在线看；落葉松人工林群落株距80cm的猴腿蹄蓋蕨種群高度人人摸人人操人人干人人、葉柄直徑均最大；蕨菜食品加工技術(shù)落后91POPNY老熟女国产、工藝簡單偷拍一区1页、產(chǎn)品單一，今后應(yīng)加強研究人人看人人草人人搞人人鲁人人插。

Compared carbon pools and turnovertime under different soil types, the result shows: soil total organic carbon is grey cinnamonforest soil＞dark-brown soil＞meadow soil＞brown coniferous forest soil＞red soil＞yellowsoil＞yellow brown soil＞paddy soil＞red soil＞flubo-aquic soil＞fengsha soil,temperate forest soil＞subtropical forest soil＞subtropical cropland soil＞temperate dry soil.Active carbon is temperate forest soil＞subtropical soil.

對不同土壤類型的碳庫及其駐留時間進(jìn)行比較A级高清免费毛片av无码，得出：有機碳含量呈現(xiàn)：灰褐土＞暗棕壤＞草甸土＞棕色針葉林土＞紅壤＞黃壤＞黃棕壤＞水稻土＞農(nóng)田紅壤＞潮土＞風(fēng)沙土，溫帶森林土壤＞亞熱帶森林土壤＞亞熱帶農(nóng)田土壤＞溫帶干旱土壤99re；活性碳含量是溫帶森林土壤＞亞熱帶的土壤A片黄网站。

The utilization of nonwoody forest plant resources is significant to the development of chemical industry of forest products and to raising the economical effect of forest enterprises in forest area.

林區(qū)非木質(zhì)植物資源的開發(fā)利用對林產(chǎn)化學(xué)工業(yè)的發(fā)展和林區(qū)經(jīng)濟效益的提高都有重要意義国产av的网站。

In order to regulate and optimize the forest distribution, and make the forest management plan scientifically, practicably and maneuverability, it is necessary for forest management units to build up forest management scheme integrated with information technology.

在森林經(jīng)營單位實施整體調(diào)控，優(yōu)化布局欧美性爱一级shipin，使森林經(jīng)營方案具有科學(xué)性亚洲大吊、實用性和可操作性，是綜合應(yīng)用計算機信息技術(shù)進(jìn)行森林經(jīng)營方案編制的迫切要求久久久久精品极品。

In view of the questions proposed, taking the forest spatial structure as a breakthrough point, the paper has discussed the main factors that how forest spatial structure influence forest disaster and analyzed the character of forest disaster and its spatial relationship with society, economy, and nature environment.

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