I said: I will water my garden of plants, and I will water abundantly the fruits of my meadow.

我說(shuō)：我要澆灌我的花園黄色av免费在线播放，我要滋潤(rùn)我的菜田欧美熟妇XXXX片。

Based on the status of agricultural structure this paper indicated the necessity of agricultural structure and put forward the aim of which was to change the grazing stock raising into the artificial meadow structure around oasis-marginal belt of diluvial fan in order to restore mountainous ecosystem and play the function of ecosystem service while getting to the good of eco-ecology. Also, two strategic countermeasures for the agricultural structure were presented which were that implementing integrated alteration from cotton-grain to grass-cotton-grain and from fresh water oasis to salt water oasis respectively.

本文在論述天山北坡農(nóng)業(yè)結(jié)構(gòu)現(xiàn)狀的基礎(chǔ)上熟妇高潮一区二区三区，指出其農(nóng)業(yè)結(jié)構(gòu)調(diào)整的必要性在线小视频日韩，提出了農(nóng)業(yè)結(jié)構(gòu)調(diào)整的目標(biāo)就是改變目前天山的放牧性畜牧業(yè)天天五月情，恢復(fù)山地生態(tài)系統(tǒng)精品女同一区二区三区免手续费站，發(fā)揮山地的生態(tài)服務(wù)功能，在綠洲－扇緣帶建立新的草地農(nóng)業(yè)的產(chǎn)業(yè)結(jié)構(gòu)美产一毛片免费视频看，實(shí)現(xiàn)生態(tài)經(jīng)濟(jì)雙贏18禁无遮挡啪啪无码网站免费看；并提出了以棉糧為主轉(zhuǎn)向?qū)嵭胁菝藜Z的綜合性的改造以及從淡水綠洲轉(zhuǎn)向咸水綠洲的農(nóng)業(yè)結(jié)構(gòu)調(diào)整的戰(zhàn)略對(duì)策。

Alpine meadow and wetland, closely correlated with the amount of water stock in the riverhead of China, is the most important ecosystem of the Qinghai-Tibetan Plateau. This ecosystem is the primary sup port for the industrial and agricultural and the living using water in the middle east of China, which makes the conservation of alpine meadow and wetland in the Qinghai-Tibetan Plateau have importantly practical significance.

高寒草甸及濕地是青藏高原上最為重要的生態(tài)系統(tǒng)国产原创在线免费视频，它的狀況直接關(guān)系到我國(guó)江河源頭的蓄水量日韩欧美亚洲综合一区二区三区，也關(guān)系到我國(guó)中部和東部廣大地區(qū)的工農(nóng)業(yè)及人民生活用水国产盗摄视频精品一区二区，因此對(duì)青藏高原高寒草甸與濕地的保護(hù)具有重要的現(xiàn)實(shí)意義。

The root biomass improved the soil infiltration rate and reduced runoff,the runoff and erosion amount of meadow brome decreased by 98.2%and 99.9% respectively,and the ability of water retention and soil-reinforcement of meadow brome was 5.2 and 1.5 times than that of corn.

同時(shí)在线欧美看片免费人成视频，草地雀麥010 cm土層根系發(fā)達(dá)国产日韩亚洲丝袜AV，地下生物量是玉米的2.88倍，可以顯著提高自然降水的土壤入滲率乱子刺激对白在线播放，減少地表徑流97视频在线分类播放，使坡地年徑流量與土壤侵蝕模數(shù)減少98.2%和99.9%，保水iGao中文视频网为爱搞点激情、固土能力是玉米種植的5.2倍和1.5倍国产福利网在线，水土流失防治效果顯著。

The water diffusion processes and the relationships between water diffusivities and soil water contents in typical meadow Calamagrostis angustifolia wetland soil in Sanjiang Plain were simulated by horizontal soil column infiltration method.

運(yùn)用水平土柱入滲法模擬研究了三江平原典型草甸小葉章濕地土壤的水分?jǐn)U散過(guò)程以及水分?jǐn)U散率與土壤含水量之間的關(guān)系久久久亚洲天堂。

Up to May 2000, before water delivering, the cutting off runoff of lower Tarim River had been continued for 30 years, all the surface water had disappeared for a long time. It forces the environment which is originally controlled by dry circulation to develop rapidly toward dry environment. The desertification had expanded greatly. As the results, a large number of the saline meadow and halophilous shrub deserta had disappeared.

：由于近30a的斷流gogo全球高清国模私拍，使本來(lái)就處于干旱環(huán)境中的塔里木河下游末端朝著更加干旱的方向急劇發(fā)展，致使原有的荒漠植被大量消失男人的天堂官网，植物成片死亡综合婷婷国产天堂久久，或?yàn)l于死亡日韩欧美女自拍图片视频网站大全，并形成大片裸地找点黄片看看听听叫床；遺留種類(lèi)極度貧乏，群落結(jié)構(gòu)簡(jiǎn)單亚洲一级特大黄色小视频，一年生草本植物趨于滅絕wwwbbbb。

The soil water content in lightly degraded meadow is significantly higher than that of severely degraded meadow.

隨著退化程度的加劇，土壤容重在各層均呈現(xiàn)增加的趨勢(shì)免费观看中日韩毛片视频。

The spatial heterogeneity of soil water in alpine meadow is found to be the highest,and that of the soil water in alpine shrub is comparatively low.

土壤水分的空間異質(zhì)性是各種生態(tài)系統(tǒng)的內(nèi)在屬性在线a片视频。，這種異質(zhì)性的強(qiáng)度和空間尺度無(wú)論對(duì)群落結(jié)構(gòu)還是生態(tài)過(guò)程都具有重要影響[1]。

The spatial heterogeneity of soil water in alpine meadow is found to be the highest, and that of the soil water in alpine shrub is comparatively low. What is more, the spatial heterogeneity of soil mater in desert grassland shows an unstable trend influenced by many outside factors.

結(jié)果表明自拍播放，高寒草甸土壤水分的空間異質(zhì)性最高欧美偷拍99；而高寒灌叢的較低；沙化草地的空間異質(zhì)性受到多方面外界因素的影響而表現(xiàn)出不穩(wěn)定的態(tài)勢(shì)A级毛片久久精品免费看。

According to the models of land use dynamic change, the research on the dynamic change on land use quantity, space structure and land use degree were carried during 1989 and 2001. The results of the research indicated that the area of cultivated land and saline land increased, and the area of meadow, water areas and wetland reduced within 12 years; The variety ratio of cultivated land, meadow, water areas and saline land changed relatively great; and variety ratio of forestland, land used for resident, industrial and mining changed more steady; The land use degree presented a reducible tendency.

研究結(jié)果表明插穴影院，吉林西部在12年內(nèi)耕地和鹽堿地面積增加，草地国产小视频网站、水域和濕地面積減少人人人人插人人干人人操；總體上，耕地免费人成在线观看网、草地国产在线网址、水域和鹽堿地的土地利用變化率較大，林地riAv.viP网站、居民日本拍拍视频、工礦用地和濕地變化較平穩(wěn)欧美黄网站网址； 12年間土地利用程度呈減小趨勢(shì)，全區(qū)十個(gè)縣市中只有白城和扶余的土地利用處于發(fā)展期日韩人成精品视频免费播放在线，土地生態(tài)環(huán)境相對(duì)較好日韩欧美操逼视频，而其他地區(qū)由于土地生態(tài)環(huán)境呈現(xiàn)不同程度的惡化，導(dǎo)致可開(kāi)發(fā)利用的土地資源逐年較少亚洲国产看片基地久久1024，土地利用潛力小亚洲视频精品一区。