查询词典 rangelands

Rangelands, and pastoralism in general, are increasingly seen as having positive environmental impacts.

总体而言，牧场和游牧方式对环境的积极影响正逐渐被人们所认识。

Those trying to assist the nomads in the rangelands around the dusty town of Elwak on the Somalia border understand that there is a catch-22 in their efforts to help them: that external help for all that it is desperately needed may also be hastening the end of nomadic pastoralism in this region.

那些试图帮助游牧民的人知道他们的努力陷入了左右为难的境地：在索马里边境尘土飞扬的艾尔瓦克小镇周围的牧场，来自外部的帮助，尽管是急切需要的，也有可能加速在这里游牧社会的瓦解。

Thus, tillage measures should be applied prudentially in the sub-alpine rangelands of northwest Sichuan.

建议在川西北亚高山区的人工草地建设中慎重选择翻耕措施。

We further used Spearman rank correlation coefficient to analyze the relationship of the size of fir forest, rangelands and farmlands with demographic data (such as number of households, villager population,average household size and livestock inventories).

在上述结果的基础上，我们进一步对栖息地变化的主要原因进行了初步分析和探讨。

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％。

On the other hand, the polyandrous marriage system practiced by the local villagers are positive for habitat conservation, since this can reduce resource consumption (such us firewood, number of room, rangelands, farmlands) per capita in large households (that is, the number of occupants) than in small households.

这意味着在目前当地传统生产方式基本未发生改变的情况下，因人口数量增加所带来的生产等活动强度的增加是黑白仰鼻猴栖息地丧失与破碎化加剧的主要原因（R2 = 0.972）；当地人类经济活动的增加，如牧场和农田扩张，牲畜存栏数增加以及薪材采集和木质建筑等导致了栖息地丧失、退化和破碎化。

It has become a serious threat to the world's rangelands and grasslands.

它已经严重的威胁世界上的牧场和草地。

"Reducing cattle and sheep populations, and increasing the kangaroo population on the rangelands to 175 million to produce the same amount of meat by 2020, would lower by 16 megatons, or 3 per cent of Australia's total emissions," his paper said.

他的研究中指出，「在二0二0年减少牛羊数量，提高牧场袋鼠数量至一亿七千五百万只，以生产与减少牛羊数同量的肉，可再减少温室气体排放量达一千六百万吨，占澳洲总排放量的百分之三。

Of China's rangelands, 16 ecological types, 1700 – 4000m

中国9％的牧场，16种生态类型， 1700 – 4000米

About 20 percent of the world's pastures and rangelands, with 73 percent of rangelands in dry areas, have been degraded to some extent, mostly through overgrazing, compaction, and erosion caused by livestock.

世界上大约20 ％的牧场与放牧区，有73%的放牧区在乾旱区域中，已退化到一定的程度，主要是来源於牲畜所造成的过度放牧、密集式放牧、与土壤流失。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。