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英語(yǔ)人>網(wǎng)絡(luò)例句>Land 相關(guān)的網(wǎng)絡(luò)例句
Land相關(guān)的網(wǎng)絡(luò)例句
與 Land 相關(guān)的網(wǎng)絡(luò)例句 [注:此內(nèi)容來(lái)源于網(wǎng)絡(luò)超萌福利网址大全免费播放在线观看,僅供參考]

Based on field experiment and measure data, ecological characteristics of soil water in different fencing sandy land in arid desert area and vegetation restoration effect of soil water variation in fencing sandy land were analyzed. In representation of Artemisa arenaria DC population, observing and researching vegetable restoration effect of soil water variation in fencing sandy land. The results indicate as follow:(1)With the vegetation development constantly in fencing sandy land, soil water utilization of vegetation increased. It made soil water content and soil water storage reduced with the increase of fencing time in sandy land.

本文通過(guò)野外實(shí)驗(yàn)測(cè)定數(shù)據(jù)99视频免费看,分析研究了干旱荒漠區(qū)不同類型封育沙地土壤水分生態(tài)特征一毛不卡毛片免费网址,以及封育沙地土壤水分變化對(duì)植被恢復(fù)的影響,并以當(dāng)?shù)厣齿锓N群為代表国产三级黄片视频,觀測(cè)研究封育沙地土壤水分變化對(duì)植被恢復(fù)的影響亚洲色婷婷啪啪一区二区,結(jié)果表明:(1)封育沙地隨著植被的不斷生長(zhǎng),植被對(duì)土壤水分的利用也有所增加农民工出租屋嫖妓,從而使沙地土壤含水量和儲(chǔ)水量隨封育時(shí)間的加長(zhǎng)而表現(xiàn)為一定的降低趨勢(shì)人人干人人色人人摸人人操。

The fact have been proved that we must solve these problems, allocate land reasonable and make intensive utilization of land resource in order to quicken up the citify process and improve the life quality of people. The process of urbanization should be the process of intensified utilization of lands. The phenomenons of extensive exploitation of land, irregular market and the lack of management have already obstructed the reusable source of land and the fast development of the citys economy. Therefore, it has become the urgent affairs to build up the indicator system of measuring the intensive use of urban land and look for a way to carry out.

實(shí)踐證明,城市化要加快国产又硬又黄又粗视频,人們生活質(zhì)量要提高性爱视频网站九九性爱,就必須解決合理配置、集約利用城市土地資源問(wèn)題精品国内在视频线免费,城市化過(guò)程應(yīng)是土地集約化利用的過(guò)程japanese无码精品专区,當(dāng)前城市發(fā)展中出現(xiàn)的土地利用粗放、市場(chǎng)不規(guī)范及管理乏力現(xiàn)象小草影院亚洲私人影院,已嚴(yán)重阻礙了城市土地資源的可持續(xù)利用及城市經(jīng)濟(jì)的快速發(fā)展久久免费精品视频,因而建立衡量城市土地集約化利用的指標(biāo)體系及尋求實(shí)現(xiàn)城市土地集約化利用的途徑已成為當(dāng)務(wù)之急。

Base on comparison with the remote sensing data in 1982 and 2000 and field investigation, the results of land cover and land use change were obtained by the method of landscape analysis. Ten types of land use were identified: riparian woods, riparian shrubbery, desert shrubbery, desert grassland, river-way and water area, salinised land, town, Gobi, shift sand dune, denudative upland. The results show that,(1) there were obvious changes in land cover structure.

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Land use type is the outcome of duple influence of nature and human activity, which possessing scrambling, relative instability and complexity, and it can be discussed by fractal theory. Application of fractal theory in land use structure involve in the calculation of fractal dimension of land use type, research method and fractal description of change of land use structure, fractal model of region landscape and so on, but fractal mechanism of spatial diversity of land use type is rarely reported.

土地利用類型是一種在自然和人類活動(dòng)雙重作用下的產(chǎn)物,具有不規(guī)則永不卡的黄色网站、相對(duì)不穩(wěn)定性和復(fù)雜性特征亚洲最大人成在线视频,可以利用分形方法進(jìn)行探討;分形理論在土地結(jié)構(gòu)研究中的應(yīng)用涉及土地利用類型分?jǐn)?shù)維的計(jì)算欧美激情在线观看无需任何播放器、土地利用結(jié)構(gòu)分形研究方法www.99riav32.com、土地利用結(jié)構(gòu)及其動(dòng)態(tài)變化的分形描述、區(qū)域景觀結(jié)構(gòu)的分形模型等方面女人的五夜天堂视频;但土地利用類型的分形機(jī)制的空間差異研究少見報(bào)道欧洲免费黄片。

Firstly, some difficult problems required to be solved,such as the land surface parameters′ calculation and observation over inhomogeneous land surface and development similarity theory which can be applicable to the inhomogeneous land surface. Secondly, studies of the bulk transfer coefficients over humid regions of China must be strengthened. Thirdly, whether or not understanding the landatmosphere interaction process over inhomogeneous and complicated land surface in its entirety, the land surface parameters′ expandedness form local to regional scope is a critical and difficult problem.

在此基礎(chǔ)上,探討了該領(lǐng)域研究中存在的幾點(diǎn)科學(xué)問(wèn)題:①需要解決非均勻下墊面地表參數(shù)的計(jì)算和觀測(cè)以及發(fā)展適用于非均勻下墊面的相似性理論等難題亚洲视频在线不卡;②對(duì)我國(guó)濕潤(rùn)地區(qū)地表總體輸送系數(shù)的研究需要加強(qiáng)色色色色色色网站;③能否對(duì)非均勻復(fù)雜下墊面陸氣相互作用過(guò)程進(jìn)行全面的認(rèn)識(shí),地表參數(shù)由&點(diǎn)&到&面&的推廣是關(guān)鍵也是難題婷婷激情五月综合丁香社区。

Results show that there is remarkable correlation between the land use types and SOM. From1981 to 2000, the content of SOM increased in the whole area mainly because of the transformation from virgin grass land to cultivated land and increase of irrigable land. The average content of SOM increased by 28% and increased from 9.64 g/kg to 12.35 g/kg. Then the household changed their land use way by driven of interest and do not increase additional input anymore.

研究結(jié)果表明:土地利用類型及土地利用方式的轉(zhuǎn)換對(duì)土壤有機(jī)質(zhì)含量產(chǎn)生重要影響很黄很污的软件。1981~2000年,荒草地向耕地的轉(zhuǎn)換以及因灌溉設(shè)施的完善而引起水澆地面積的增加使得整個(gè)研究區(qū)域土壤有機(jī)質(zhì)含量普遍增加欧美性爱A片影院,有機(jī)質(zhì)含量平均值從9.64 g/kg增加到12.35 g/kg爱爱小黄片,增加了28%;在利益的驅(qū)使下伊人无码视频综合网,農(nóng)戶改變了土地利用方式日本又大又粗又长又爽又硬,不再向種植糧食作物的土地追加投入,研究區(qū)域土壤有機(jī)質(zhì)含量平均值由12.35 g/kg降低到11.46 g/kg(2000~2006年)国产美女一级特黄A级APP全部。

The results showed : The way of this village land using is relatively complicated, and the area of cultivated land accounts for 52. 97 percent of the whole area of the land, and the rate of land cultivation and planting is relatively high, but the area of dry land accounts for largish proportion and its productivity is relatively low.

研究中選取了紅水河流域內(nèi)某一個(gè)具有代表性的村進(jìn)行了簡(jiǎn)單的景觀格局分析日韩成人片视频网站下载免费,其結(jié)果表明:該村土地利用方式比較復(fù)雜,耕地占土地總面積的52.97%亚洲日韩激情无码一区,土地墾殖率較高婷婷六月丁香官网,但旱地占相當(dāng)比重,其生產(chǎn)力較低国产高清一级A片在线视频爱微。

By analyzing soil quality of 4 kinds of land use types in Kalamay agriculture development area according to principal component analysis, we draw the conclusions: nature shrub tree land is affected little by mankind, a great deal of organic matter return to soil every year, and root system can improve soil physical quality, can absorb salt from soil, so the soil quality of nature shrub tree land is the best; the soil quality of farmland is better than the soil quality of manpower Tamarix Bulrush land, which may be reasoned that man make for soil quality by irrigation to exclude salt and fertilizing organic muck in the earlier oasis digging up period. Soil physical qualities of tree land get harden and worsen for flooding irrigation, furthermore climate in Kalamay is dry and rainless , the other irrigation is very long time after the former one, so soil get harden severity and result soil physical quality get worse and worse.

利用主成分分析法分析新疆克拉瑪依農(nóng)業(yè)開發(fā)區(qū)四種土地利用方式下的土壤質(zhì)量国产Aⅴ一区二区三区四区,得出:天然灌木林地,受人為影響較小亚洲中文久久无码精品91,每年有大量有機(jī)物質(zhì)返還土壤天堂婷婷久久香蕉狼人,且天然灌木的根系可以很好的改良土壤的物理性質(zhì),同時(shí)所選天然灌木林灌木多是耐鹽堿并且本身又具有吸收積累來(lái)自土壤的鹽分在线A级毛片无码免费真人版,土壤質(zhì)量最好艹你综合;農(nóng)田受到的人為影響最大,但農(nóng)田綜合得分卻好于人工檉柳蘆葦?shù)鼐C合得分日韩精品第7页,這可能是由于在開墾初期的綠洲農(nóng)田中国操逼操逼多黄片,受到了人們灌水壓鹽及增施各種有機(jī)無(wú)機(jī)肥料等有利于土壤質(zhì)量提高的措施所致;喬木林地把腿扒开做爽爽视频APP,由于人們用大水漫灌的方式灌溉国内精品国产三级国产aA,致使林地土壤變得板結(jié),土壤物理性質(zhì)下降欧美色视频一区5区,加上克拉瑪依地區(qū)氣候干燥少雨人人摸人人操人人喊,一次灌溉后較長(zhǎng)時(shí)間后才有下一次灌溉欧美性情在线观看视频,致使土壤理化性質(zhì)惡化,土壤質(zhì)量不高免费看毛视频。

Shoaly land is a very important land and space resource with vast uses. Among shoaly land, the legal character of supra tidal and tidal zone is land, and it's ownership belongs to the country or peasant collective, but the legal nature of sub littoral zone is sea, so it's ownership only belongs to the country. And the ownership of shoaly land which silt up naturally should be determined according to the attaching rule.

沿海灘涂是一種重要的土地資源和空間資源AV网址导航,其中潮上帶和潮間帶的法律性質(zhì)是土地,所有權(quán)可以屬于國(guó)家色色色色综合网站,也可以屬于農(nóng)民集體超碰碰免费;潮下帶部分本質(zhì)上屬于海域,所有權(quán)只能屬于國(guó)家亚洲经典一区二区三区;自然淤積形成的灘涂所有權(quán)歸屬應(yīng)該按附合規(guī)則確定久久亚洲精品无码喷水。

The order spatial variation of soil surface compaction was in the land reclaimed five years(68.40%), next was unsubsided land(52.58%) and the lowest was the land being reclaimed(22.01%); in terms of the variation, the soil compaction is higher and the variation is lower to each soil layer of being reclaimed land, and the compaction of the first three layer is lower but the variation is higher to other redamed land, to the fourth layer(22.86~30.48 cm) is higher and variation is lower, and the compaction under the forth layer is nearly stable.

表層土壤壓實(shí)度空間變異最大的是復(fù)墾5 a的土地(變異系數(shù)為68.40%),其次是未塌陷土地(52.58%)欧美就要操,最小的是正在復(fù)墾的土地(22.01%)wwwe日本。從各層的變異情況看,正在復(fù)墾的土地各個(gè)層次土壤壓實(shí)度都較大且變異系數(shù)較低日韩在线观看自拍网页视频,其他復(fù)墾年限土壤壓實(shí)度上面3層較小但變異大肏女人逼12p,至第4層(22.86~30.48 cm)達(dá)到較高值,且變異較小美女被操免费看,之下壓實(shí)度基本穩(wěn)定大量国产真实在线视频。

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Lunchlady Land
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This Land Is Your Land
This Land Is Your Land
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