Within the community green vegetation cluster, dense green lawn and different kinds of vegetation form interactive landscape, caesious vigorous and firm architectural appearance shape natural collocation in harmony and uniformity.

社區(qū)內(nèi)綠色植被叢生免费a片在线，密集的綠色草坪與各種植被的交互景觀，與青灰色的雄渾建筑外觀形成自然搭配影音先锋在线资源免费，和諧而統(tǒng)一曰韩一级A片欧美一级A片。

The results showed that"shrub＋grass＋vine"was the most favorable pattern for vegetation recovery in the area of Jinsha River hot-arid valley. Among them, the combination of"Cajanus cajan + Setaria sphacelata + Festuca arundinacea + Macroptilium atropurpureum"significantly improved the grassland vegetation coverage and litter weight.

結(jié)果表明，&灌＋草＋藤&最適宜金沙江干熱河谷區(qū)的植被重建国产精品视频中文字幕免费看，其中&木豆＋非洲狗尾草＋高羊茅＋大翼豆&建植模式顯著地提高草地植被蓋度和凋落物重量WWW人人操人人搞。

Coast sand belongs to degraded sandy site, vegetation was the energy origin of whole ecosystem, so, this kind of vegetation must have the ability to get their ecological site on the badly degraded sandy site, on which Casuarina equisetifolia can live well, and show great adaptation.

海岸沙地的生態(tài)條件惡劣，木麻黃可以在這樣的條件下生長(zhǎng)良好性生活爱爱网址，并表現(xiàn)出了很好的適應(yīng)性亚洲国产精品亚洲一区二区三区，必有其科學(xué)原理。

Vegetation zones and 10 vegetation types were classified using TWINSPAN and DCA: Bischofia javanica‐Machilus japonica var. kusanoi type on Ficus‐Machilus zone; Engelhardia roxburghiana‐Castanopsis cuspidata var. carlesii type on Machilus‐Castanopsis zone; Rhododendron formosanum type and Pasania kawakamii‐Machilus thunbergii type on Quercus lower zone; Chamaecyparis obtusa var. formosana—Rhododendron formosanum type, Fagus hayatae type, Symplocos arisanensis‐Illicium anisatum type on Quercus upper zone; Tsuga chinensis var. formosana and Pinus taiwanensis type on Tsuga‐Picea zone; Abies kawakamii type on Abies zone.

經(jīng)TWINSPAN分析及參考DCA結(jié)果亚洲中文高清有码在线，可將植物社會(huì)區(qū)分為6個(gè)植群帶10個(gè)植群型国产亚洲欧美在线观看第一区，分別為榕楠林帶的茄冬‐大葉楠型；楠櫧林帶的黃杞‐長(zhǎng)尾尖葉櫧型在线视频A片；櫟林帶下層的臺(tái)灣杜鵑型国产妇女黄色网站、大葉石櫟‐豬腳楠型；櫟林帶上層的臺(tái)灣扁柏‐臺(tái)灣杜鵑型日日草黄片免费看、臺(tái)灣水青岡型及阿里山灰木‐白花八角型黃色视頻的网址；鐵杉‐云杉林帶的臺(tái)灣鐵杉型、臺(tái)灣二葉松型中文字幕天堂中文五区；冷杉林帶的臺(tái)灣冷杉型在线视频观看国产黄。

Almost all the vegetation types occurred in a small study area, so the present study was typical and representative. The results show that the corrosional ratios of different vegetation types at different elevations are quite different. In general, the corrosional ratios increase gradually from the forest land of Shuifang spring, through the bamboo forest land of Shuifang, the meadow of Shuifang and the forest of Bitan spring, to the shrub of Bitan spring.

測(cè)試結(jié)果表明不同植被條件甚至同一植被類(lèi)型下不同海拔下巖溶區(qū)石灰?guī)r標(biāo)準(zhǔn)試片的溶蝕速率都存在較大差異，5個(gè)測(cè)試點(diǎn)溶蝕量由大到小依次為水房泉竹林地XNXX2021、水房泉林地国产高清精品福利、水房泉草地、碧潭泉林地黄片毛片视频久久、碧潭泉灌草叢午夜aa视频免费。

Miscanthus floridulus, Crotalaria mucronaia and Artemisia argyi could colonize successfully and were dominant species in the vegetation that can be used as firstly selected plants for vegetation recovery in the coalmine wasteland.

五節(jié)芒、豬屎豆亚洲黄色视频肏屄、艾蒿等可在煤礦廢棄地上成功定居亚洲岛国性爱视频，并成為這些植被中的優(yōu)勢(shì)種，可作為廢棄地植被恢復(fù)治理的優(yōu)先選用物種亚洲黄情。

The characteristic information of denudation and cumuli area, excavation and transport area, and slope area is highlighted in the first principal components. The information of higher and lower vegetation-cover area is highlighted in the second principal component. Results show that the contribution rate of two principal components in the front achieves 97.16%. And object feature was classified by using characteristic of disturbance and vegetation.

對(duì)研究區(qū)TM影像進(jìn)行主成分分析久久r性，剝離堆墊區(qū)、采煤運(yùn)煤區(qū)和邊坡區(qū)等反映礦區(qū)擾動(dòng)特征的信息主要由第1主成分反映超碰在线永久，植被低覆蓋區(qū)和高覆蓋區(qū)等反映礦區(qū)植被覆蓋特征的信息主要由第2主成分反映亚洲电影色色黄片，兩個(gè)主成分的貢獻(xiàn)率達(dá)到97.16％18岁禁止在线免费观看，并利用擾動(dòng)特征和植被特征對(duì)研究區(qū)地物進(jìn)行了分類(lèi)。

Based on the dimidiate pixel model and NDVI, this paper estimated the vegetation fraction in Huairou District by remote sensing. In the total, the vegetation coverage wass increased during the passed 12 years.

本文基于像元二分模型求a片网址，利用歸一化植被指數(shù)NDVI国产自产精品视频，對(duì)懷柔區(qū)1992年和2004年植被覆蓋度進(jìn)行了監(jiān)測(cè)，并對(duì)十幾年來(lái)的植被覆蓋變化情況進(jìn)行了統(tǒng)計(jì)分析黄色网址日本最新视频。

With the ETM+ as data source,the Dimidiate pixel model was established based on vegetation index to extract vegetation coverage in Maowusu sandland.

以ETM+為數(shù)據(jù)源免费黄色强奸A片，基于植被指數(shù)建立像元二分模型，對(duì)毛烏素沙地進(jìn)行了植被覆蓋度提取一级黄色视频看看，然后根據(jù)實(shí)地調(diào)查數(shù)據(jù)對(duì)提取結(jié)果進(jìn)行了精度驗(yàn)證日韩一级黄色片无码，二者線性相關(guān)系數(shù)達(dá)到了0.92，平均精度為79.4%无码视频在线观看网站。

Different climate change in west and east part of north China in recent years is major reason for this phenomenon, not vegetation cover, but degenerated vegetation cover, corresponding to abnormal droughty climate during these period, is one of reasons for abnormally high dust activity in the end of 9Os'in Huabei Plain.

九十年代末黄片高清免费视频，對(duì)應(yīng)于我國(guó)北方地區(qū)，特別是華北地區(qū)干旱少雨的氣候條件中国体内精谢免费视频，植被覆蓋狀況有明顯下降的趨勢(shì)71av视频在线，這可能是世紀(jì)末華北地區(qū)沙塵活動(dòng)頻繁的一個(gè)重要原因，但我國(guó)西部沙塵源區(qū)沙塵氣溶膠光學(xué)厚度仍然保持繼續(xù)下降的趨勢(shì)99riav.m3u8。