查询词典 grazing

The relationship between weed invasion and intensity was analysed on sown pasture mixed by whiteclover and perennial ryegrass,and the preliminary results were that 1the number of invasive weeds ismainly dependent on grazing intensity;2the trend of species diversity was successively increase-decrease-increase when the grazing intensity is increase;3 principal invasion weed species are Lysimachiahemsleyana, Eragrostis nigra, etc,8 species;4the sown pasture in question is pioneer stage of the recoverysucce...

本文分析了白三叶草十多年生黑麦草混播人工草地上杂草入侵与放牧强度之间的关系，得出如下初步结论：1）杂草入侵的种数主要决定于放牧强度；2）α物种多样性随放牧加重而有增－减－增的趋势；3）入侵的主要杂草种为点腺过路黄等8个种；4）所论人工草地都处在恢复演替的先锋阶段，因而草地退化的进程还是能予以遏制的。

Bieti lost its habitat continuously in recently decades associated with the extension of rangelands and farmlands, as well as firewood collection etc. The monkey live mainly in primary fir forest and the mixed conifer forest, to evaluate the status of the monkeys' habitat, we employed GIS and RS software to identify the habitat types with five Landsat TM/ETM+ satellite imagery in winter of 1986, 1992, 1997, 2001 and 2006 years respectively. The work resulted in: 1 the size of summer grazing lands, farmlands, and fir forest was 13 100 hm2, 6 400 hm2, and 30 500 hm2 in 2006 respectively; 2 during the past 20 years (1986-2006), the size of fir forest (including primary fir forest and the mixed conifer forest) decreased by 14.6%(5 200 hm2), summer grazing lands and farmlands increased by 47.2%(4 200 hm2) and 14.3％(800 hm2) respectively; and 3, during the past 20 years, the number of firry forest patches increased by 68.4%, the mean size of firry forest patches decreased by 49.3%(from 15.1 to7.6 hm2), the largest patch index of firry forest decreased 54.9%; the patch richness had no change, but the Shannon's diversity index and the Shannon's evenness index increased by 2.7% respectively.

为了评估该物种的栖息地现状和变化情况，我们通过野外调查工作，应用GIS和RS技术，分别解译了1986年、1992年、1997年、2001年和2006年的Landsat TM/ETM+冬季卫星影像，并对解译结果进行了计算和分析，得到了以下西藏种群栖息地的主要结果：1）现有暗针叶林（包括原始针叶林和针阔混交林）面积是30 500 hm2，夏季牧场面积是13 100 hm2，农田面积是6 400 hm2；2）在过去20年间（1986-2006年），暗针叶林面积减少了14.6％（5 200 hm2），夏季牧场面积增加了47.2％（4 200 hm2），农田面积增加了14.3％（800 hm2）；3）在过去20年间，暗针叶林的斑块数量增加了68.4％，平均斑块面积下降了49.3％（从1986年的15.1 hm2下降到2006年的7.6 hm2），最大的斑块指数下降了54.9％；景观丰富度并没有变化，但Shannon多样性指数和Shannon均匀度指数分别增加了2.7％。

The distribution of N-P and the moisture variation caused by incrassation of the mattic epipedon together with its relationship to pasture degradation by grazing in alpine Kobresia meadow were studied at the Haibei ecosystem research station, Chinese Academy of Sciences. From 2005 to 2007, the plot pasture was maintained with a relatively stable grazing intensity and had formed obvious differences in surface character and species component.

在中国科学院海北高寒草甸生态系统研究站地区，选择了5个自然放牧梯度、处于4种典型退化阶段的高寒嵩草草甸为研究对象，进行了土壤草毡表层加厚引起的系统氮、磷分配和水分利用的变化过程研究。

On the other hand, the grazing would also weaken the regrowth of some shrubs which had the higher content of crude protein such as Indigofera inchangensis Craib and Dalbergia hupeana Hance., so the grazing intensity to make these shrubs not to decrease even disappear in the shrubby commnuity should be carefully controled.

而对于某些粗蛋白质含量较高的灌木种，如宜昌木兰和黄檀等，放牧会影响其再生，故应严格控制其放牧强度才不致使其从灌木群落中衰减甚至消失。

Grazing reduced aboveground biomass of the communities except in the Stipa klemenzii community. In this case annual warm season plant, Salsola collina, became absolutely dominant species in the community under heavy grazing intensity.

群落地上现存量一般随放牧强度的增大而下降，但小针茅群落反之，主要与一年生植物猪毛菜的生物量迅速增加有关。

Based on these, this study was to determine the relationship between standing vegetation and soil seed bank. The main results are as follows: 1 Effects of grazing on plant communities The grazing successions were Stipa klemenzii → Salsola collina + Stipa klemenzii → Salsola collina community in the desert steppe; Stipa grandis or Leymus chinensis → Cleistogenes squarrosa + Stipa krylovii or Stipa grandis → Potentilla acaulis + Cleistogenes squarrosa community in the typical steppes and Leymus chinensis + forbs →Leymus chinensis + Stipa baicalensis community in the meadow steppe.

主要结论如下： 1放牧对植物群落的影响荒漠草原的放牧演替规律为小针茅群落→猪毛菜+小针茅群落→猪毛菜群落；典型草原为羊草或大针茅群落→糙隐子草+大针茅群落或克氏针茅群落→星毛委陵菜+糙隐子草群落；草甸草原为羊草杂类草群落→羊草+贝加尔针茅群落，这是不同物种对牧压的不同适应结果造成的。

He repeated thrice, adding, No doubt, good produces nothing but good. Indeed it is like what grows on the banks of a stream which either kills or nearly kills the grazing animals because of gluttony except the vegetation-eating animal which eats till both its flanks are full and then stands in the sun and defecates and urinates and again starts grazing. This worldly property is sweet vegetation. How excellent the wealth of the Muslim is, if it is collected through legal means and is spent in Allah's Cause and on orphans, poor people and travelers. But he who does not take it legally is like an eater who is never satisfied and his wealth will be a witness against him on the Day of Resurrection.

&他反复三次，并称：&毫无疑问，良好的生产无关，但好的，事实上它像什么增长，对银行的一个流，其中要么杀死或几乎杀死了放牧牲畜因吃喝玩乐除植被，草食动物吃掉，直至两其两翼充满，然后站在太阳和defecates和urinates ，并再次开始放牧，这世间财产是甜的植被怎么优秀的财富穆斯林的是，如果它是收集通过法律手段和是用在真主的事业和对孤儿，穷人和旅行者，但他不考虑它在法律上是一样的大胃王谁是永不满足，和他的财富将是一个证人，对他就复活的日子。

He repeated thrice, adding, No doubt, good produces nothing but good. Indeed it is like what grows on the banks of a stream which either kills or nearly kills the grazing animals because of gluttony except the vegetation-eating animal which eats till both its flanks are full and then stands in the sun and defecates and urinates and again starts grazing. This worldly property is sweet vegetation. How excellent the wealth of the Muslim is, if it is collected through legal means and is spent in Allah's Cause and on orphans, poor people and travelers. But he who does not take it legally is like an eater who is never satisfied and his wealth will be a witness against him on the Day of Resurrection.

&他反复三次，并称：&毫无疑问，良好的生产无关，但好的，事实上它像什麼增长，对银行的一个流，其中要么杀死或几乎杀死了放牧牲畜因吃喝玩乐除植被，草食动物吃掉，直至两其两翼充满，然后站在太阳和defecates和urinates ，并再次开始放牧，这世间财产是甜的植被怎麼优秀的财富穆斯林的是，如果它是收集通过法律手段和是用在真主的事业和对孤儿，穷人和旅行者，但他不考虑它在法律上是一样的大胃王谁是永不满足，和他的财富将是一个证人，对他就复活的日子。

In good pastures will I pasture them, and on the mountain heights of Israel shall be their grazing ground. There they shall lie down on good grazing ground, and in rich pastures shall they be pastured on the mountains of Israel.

我要在茂盛的草原上牧放他们，在以色列的高山上有他们的羊栈，在那里他们要卧在舒适的羊栈里，在以色列的群山上，在肥美的牧场上吃草。

Species diversity in three types of vegetation were relatively higher in August, and lower in May. Species diversity of vegetation was highest in the reconverted grazing land, lower in the semi-fixed dune land, and lowest in the natural reconverted farmland. The stability of vegetation in the reconverted grazing land was relatively high and strong buffering function to changing environment among three types of vegetation.

放牧自然恢复地植被的物种多样性相对较高，半流动沙地相对较低，退耕自然恢复地最低，这说明相对于半流动沙地和退耕自然恢复地，放牧自然恢复地稳定性相对较高，对环境波动的缓冲功能强。

He tendered his resignation to the Prime Minister.

他向首相递了辞呈。不适合

International economy and trade,Nanking 210044

国际经济与贸易，南京 210044