This paper systematically summarized and analyzed general development characteristics of soil profile CaCO3 in Loess hill gully area including source, content, forming-condition, distribution and illuviation- depth of CaCO3, which will have the most important significance for the further studies on global soil and climate change.Soil CaCO3 eluviation-illuviation is a relatively complicate process, soil CO2 is one of the important effect factors, which influences soil CaCO3 through controlling soil pH value and CaCO3 solution capability.

碳酸鈣在土壤剖面中淀積的深度和類型是黃土高原土壤發(fā)育的重要標(biāo)志A片三集片在线hu免费，鈣積層是黃土高原土壤發(fā)育環(huán)境的歷史信息庫很爽的超薄肉色丝袜脚交，同時土壤碳酸鈣作為土壤無機(jī)碳庫重要組成，它通過溶蝕后再結(jié)晶與大氣CO_2之間進(jìn)行物質(zhì)交流來影響全球氣候變化毛片视频免费看。

In his work, which is a compilation of ancient documents, we read:"Beyond the Kidron gully there is a grotto with a church above it."

他的職務(wù)是編輯早期文件曰本特黄免费视频在线观，在其中我們讀到：「越過克德隆溪谷，那兒有個穴洞中的教堂国产全黄A级A片一免费。

Yearly and seasonal changes of soil water and aboveground biomass of artificial Lespedeza davurica grasslands at different habitats in loess hilly-gully region were comparatively studied.

對黃土丘陵區(qū)川地和坡地達(dá)烏里胡枝子人工草地生產(chǎn)力與土壤水分狀況的季節(jié)變化動態(tài)進(jìn)行比較研究日韩播放自拍视频在线观看网站免费。

This study deals with butterfly diversity and conservation of rare as well as insect fauna species in Baishuijiang Natural Reserve in Gansu Province. The research includes field investigation, observation at certain time and places, captive breeding in experimental area etc. Butterfly species diversity in Baishuijiang Natural Reserve and variation regulation of butterfly diversity in different areas are studied. The relationof butterfly diversity with environmental factors such as vegetation destruction, human disturbance are strenthened in Bifeng Gully. The biology of two rare butterfly species is studied. Meanwhile, this study deals with insect α-diversity and β-diversity in Baishuijiang Natural Reserve and inquire into the mechanisms of ecological control by protecting and recovering vegetation. The research includes field capture with sweeping net, light trap, transect investigation.

在甘肅省白水江自然保護(hù)區(qū)碧峰溝通過野外調(diào)查、定點(diǎn)定時觀察欧美第十页、實(shí)驗(yàn)地飼養(yǎng)等研究了白水江自然保護(hù)區(qū)兩種珍稀蝴蝶紅基美鳳蝶和巴黎碧鳳蝶的生物學(xué)特性8x在线视频，在保護(hù)區(qū)范圍內(nèi)通過網(wǎng)捕采集研究了蝶類物種多樣性和不同區(qū)域內(nèi)蝶類多樣性的變化規(guī)律；同時在碧峰溝四種不同生境中通過燈誘獲得標(biāo)本无码少妇精品一区二区免费动态，研究了該地區(qū)不同生境中的昆蟲種類組成及其多樣性91精品一区综合在线观看，分析了決定物種豐富度的關(guān)鍵因子，與蝶類多樣性進(jìn)行了比較分析女人18毛片在线播放，并提出了具體的保護(hù)措施www.szfbsz.com。

Follow the Naas Valley to Horse Gully Hut Walking Track to Nature's Boarding House, a huge tree where nearly 400 species of Australian birds, bats and mammals have built their dens, roosts and nests.

沿著納斯谷至跑馬溪小屋徒步路徑來到大自然旅舍（Nature's Boarding House）－這是一棵巨樹，有近400種澳大利亞鳥類91性感视频在线、蝙蝠和哺乳動物在上面建窩筑巢无码视频中文字幕一区二区。

On the 18 December 1900 the 模板:Railgauge narrow gauge railway from Upper Ferntree Gully to Gembrook was opened and they requested the Victorian Railways build a stopping place nearby, which was agreed to and on Monday, 3 June 1901, a station named Upwey was opened.

在1900年12月18號的模板： Railgauge 窄軌鐵路從上Ferntree溝，以Gembrook開放和他們要求維多利亞鐵路建設(shè)一個停車處附近污色视频免费在线观看网站，這是同意和星期一免费日韩黄黄色片观看品尚网， 1901年6月3日，一個名為Upwey站開幕美女扒开腿让我爽视频软件网站。

Based on overlay and analysis function in GIS, a gradient correction downscaling model in yanr gully is made, which apply an effective method for sealing-up in multi scale.

利用GIS的空間疊置分析功能国产亚洲一二三，對燕兒溝1∶1萬/1∶5萬的坡度轉(zhuǎn)換圖譜進(jìn)行了初步研究，為不同比例尺之間的尺度轉(zhuǎn)換提供了一種有效的方法久久亚洲精品无码aⅴ大香。

As the representative of the northern Loess Plateau gully region, the soil quality under different cultivation length of the orchard in Changwu county was studied. Using partial correlation coefficient to determine the weight, combined with evaluation of membership Sanction to evaluate soil quality levels of the area, the trend of orchard soil quality under different cultivation years was analyzed. The results showed that the IFI values of orchard soil were between 0.22 and 0.70, 27% of them reached the second soil quality standards, 64% reached a third-level soil quality standards, 9% met the fourth standards of soil quality.

以長武北部黃土高原溝壑區(qū)為代表日韩激情无码一级毛片多人，研究了不同果園種植年限下的土壤質(zhì)量現(xiàn)狀，運(yùn)用偏相關(guān)系數(shù)法確定權(quán)重国产激情无码专区，結(jié)合隸屬度函數(shù)評價(jià)了該地區(qū)土壤的綜合肥力水平aa专区，分析果樹種植中土壤質(zhì)量隨著種植年限的變化趨勢，結(jié)果表明：黃土溝壑區(qū)果園土壤IFI值在0.22~0.70国产三级片免费无码手机版，其中有27%達(dá)到了2級土壤質(zhì)量標(biāo)準(zhǔn)在线观看国产爆草视频免费，64%達(dá)到了3級土壤質(zhì)量標(biāo)準(zhǔn)，9%達(dá)到了4級土壤質(zhì)量標(biāo)準(zhǔn)国产办公室秘书。

He began his literary creation in 1982. His main works are: medium-length novel "Mountain Fortress"; short stories "Gully in that Mountain","Party Wall","SunFalls into the Ground","He Goes He Comes"; proses "RedMansion","Father and Alcohol"; etc.

歷任湖南湘西州作家協(xié)會秘書長免费自拍黄色网站、常務(wù)副主席欧美欧美在线视频观看。1982年開始文學(xué)創(chuàng)作，主要有中篇小說《寨堡》视频一区无码天堂，短篇小說《那山里的溝》www,日本高清视频、《界墻》、《落土的太陽》色一区二区三区、《他走了他來了》黄色小视频网站网址在线免费观看，散文《紅樓》《爹與酒》等。

He began his literary creation in 1982. His main works are: medium-length novel "Mountain Fortress"; short stories "Gully in that Mountain","Party Wall","Sun Falls into the Ground","He Goes He Comes"; proses "Red Mansion","Father and Alcohol"; etc.

歷任湖南湘西州作家協(xié)會秘書長国产A片一级黄色、常務(wù)副主席青青操在线视频。1982年開始文學(xué)創(chuàng)作，主要有中篇小說《寨堡》扒开双腿疯狂进出爽爽爽视频，短篇小說《那山里的溝》《界墻》《落土的太陽》《他走了他來了》久久久国产带黄Av，散文《紅樓》《爹與酒》等。