The research results of vegetation recovery and soil erosion characteristic in corroded ditch of purple soil hills using plant-fencing are:(1) The balsamroot and giant reed can shape plant-fencing in half of year and the effect of preventing soil erosion is remarkable.

植物活籬笆恢復紫色土侵蝕溝植被及水土流失特征研究結果：(1)香根草97视频在线分类播放、蘆竹栽植半年即可形成植物籬笆自拍偷拍网第一页，防治水土流失效果顯著九一国产视频精选。

Cold zone black glebe is evolved under the conditions of frigid temperature and earth -surface vegetation eroded by years.

充滿神奇韻味的寒地黑土日本一一video，是在寒冷氣候條件下黄片导航，地表植被經(jīng)過寒來暑往漫長的腐蝕形成腐殖質后演化而成的人人干人人98。

Pingli are Pentaphyllum's hometown, is located in Shaanxi, Hubei, Chongqing "Golden Triangle" north Qinling Rain, South according to Bashan barrier around the territory of the mountains led, Ditch Creek horizon, the light abundant, plentiful rainfall, fertile soil rich in selenium , potassium, calcium, manganese and other trace elements, lush vegetation, fresh air.

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The Els Club measures a formidable 7,538 yards and is a combination of a links golf course and traditional classical-era design set on undulating slopes of native desert vegetation.

它的總長度是讓人望而生畏的7538碼，結合了林克斯球場以及根據(jù)當?shù)夭ɡ藸钇鸱衬匦芜\用的傳統(tǒng)經(jīng)典設計風格国产精品大屁股AⅤ在线。

Basesd on the precipitation difference in Tsaidam Basin of Qinghai Province, three sampling areas, including Geremu, Delinghan and Doulan, were selected, and then three sapmling plots in each sampling area were selected to study the characteristics of plant community which dominated by Ceratoides lateens, Nitraria tangutorum, Tamarix chinensis, Kalidium gracile, Haloxylon ammodendron and Salsola arbuscula respectively. At the same time, the morphological and physiological features of above-mentioned 6 species were measured for probing their drought tolerance. By using the subordinative function method, grey correlative degree analyse and no-weight index comprehensive evaluation method, their drought tolerance were compared as well. The results were showed as follows: The main xeric vegetation types in the desert steppe of Tsaidam Basin were Nitraria tangutorum community, Tamarix chinensis community, Haloxylon ammodendron community, Kalidium gracile+Salsola arbuscula community, Ceratoides lateens+ Haloxylon ammodendron+Kalidium gracile community.

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The paper studied comprehensive performance of ten different mixed lawn grass at Chengdu city, The characteristics of lawny planting speed, greensward density, leaf texture, green vegetation index, disease resistance, the cover age, uniformity and comprehensive quality were evaluated.

摘要對10個混播組合草坪草在成都地區(qū)的綜合表現(xiàn)進行了研究，分別對建植速度亚洲特黄三级视频免费在线播放、密度中文字幕毛片、葉片質地、綠度2021亚洲视频、抗病性亚洲乱伦视频乱乱、蓋度、均一性一级片a片在线视频、綜合評定共8項質量進行綜合評價色偷偷色噜噜狠狠网站老女肥。

Due to an abundant rainfall and frequent rainstorm, and geographical characteristics of mountain and hills, the potential erosive dynamics of soil erosion is strong. The low resistant erosion ability of ground substance, especially in granite weathering crust and purple rock and its soil are the inner causes of severe soil erosion. The utilization of natural resource of mankind was increased due to characteristics of social and economic environment of the province. The unreasonable land utilization caused vegetation destroy, which is the key factor of soil erosion.

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Effects of the restoration of vegetation in hillside on the gully erosion .

坡面植被恢復對溝道侵蝕產(chǎn)沙的影響。

The abundant Gymnosperm and varied coniferous forest types is the prominent characteristic of vegetation in Mt. Yuanbaoshan.

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