After nest found, the dominating ecological factors with definite distance to nest tree (less than 10 meters) including tree species, tree height, habitat type of nesting-tree, nest position, the type of nesting tree branch, nest type, the type of nest-site, the viability status of tree and branch was described and measured. Geography coordinates (latitude-longitude) was converted into orthogonal coordinates, and add to Arcview3.2 as shape-file, and measured the distance between nest and the habitat type including double-line river, lake, seasonal lake, shallow mire, deep water mire, meadow mire, farmland, sparse forest, forest marsh, the boundary of Nature Reserve and road.

將調(diào)查所獲得的東方白鸛巢址坐標(biāo)轉(zhuǎn)換成平面直角坐標(biāo)，并將巢位點作為Arcview3.2中的矢量圖層加入到已經(jīng)矢量化的洪河保護(hù)區(qū)生境類型圖中美女张开腿让男人桶到底免费网站，運用Arcview3.2的距離量算功能wWW,性色,COM，量算出每個巢距各生境類型的距離人人看操，包括雙線河av在线免费网址、湖泊、時令湖一级黄日本C爱视频、輕沼澤99re一区二区、重沼澤、沼澤化草甸天堂婷婷久久香蕉狼人、旱田www.色棋棋.com、疏林和森林沼澤，以及距保護(hù)區(qū)邊界和公路的距離艹你综合。

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.

同時精品国产A∨一区二区三区，草地雀麥010 cm土層根系發(fā)達(dá)，地下生物量是玉米的2.88倍中国操逼操逼多黄片，可以顯著提高自然降水的土壤入滲率天人天堂伊人网，減少地表徑流，使坡地年徑流量與土壤侵蝕模數(shù)減少98.2%和99.9%国内精品国产三级国产aA，保水A无码国产激情视频酒店、固土能力是玉米種植的5.2倍和1.5倍，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散過程以及水分?jǐn)U散率與土壤含水量之間的關(guān)系欧美性情在线观看视频。

Soil water content in fenced undegraded meadow is greater than that of artificial pasture.

合并數(shù)據(jù)的四元線性回歸方程中有人口數(shù)量和牲畜數(shù)量兩人為因子中文字幕在线观看第一页在线观看，年蒸發(fā)量和年平均風(fēng)速兩個自然因子。

On the banks of the Nederrijn River is Loowaard, a beautiful stretch of water meadow between the dykes.

在下萊茵河分支的岸邊是勞渥德AV网址导航，延伸在堤壩之間的一片美麗的水草牧場久久综合加勒比金8天国。

brackish water meadow：半咸水草甸,微咸水草甸 微鹹水草原

brackish water 半咸水 微鹹水 Y | brackish water meadow 半咸水草甸,微咸水草甸 微鹹水草原 Y | brackish water swamp 半咸水沼澤,微咸水沼澤 微鹹水沼澤 Y

brackish water meadow：咸水草甸

brackish water lake 半咸湖 | brackish water meadow 咸水草甸 | brackish water swamp 半咸沼澤

brackish water meadow：微鹹水草原

brackish water 微鹹水 | brackish water meadow 微鹹水草原 | brackish water swamp 微鹹水沼澤