查询词典 vegetation

The study first use ecological-economical classification of rangeland plant ,which can representrangeland vegetation characteristics, purpose and worth.

多样性指数法的生态学的原理，将草地类型多样性从定性描述深入到定量研究。

As a rangeland ecologist, grasses and the interactions between vegetation and the animals both wild and domestic interest me.

作为一名草原生物学家，我对草类植物以及植被与动物之间的关系非常感兴趣。

Major results were summarized as follows:(1) A total of 58 tree species from 53 genera in 36 families among which 8 species were Rosaceae, 5 species were Liliaceae, 5 species were Eriaceae, 3 species were Ranunculaceae, 3 species were Compositae, 2 species were Cupressaceae, 2 species were Caprifoliaceae, 2 species were Umblliferae, and other 28 tree species were only one receptively. These were recorded in the 8 plots of the A. georgei var. smithii forest;(2) Number of families, genera, species and Margalef index correlated negatively with altitude (P.05), with a peak at 3600 m.(3) Shannon-Wiener index correlated negatively with altitude (P.01), and maintained stable at the altitudes between 3700~4100 m, evenness with altitudes, however, this trend was insignificant.(4) Jaccard index increased sharply with increasing altitude at the altitudes between 3600~4100 m, and was lower between different vegetation types at the altitudes between 4100~4200. Cody index β(subscript c decreased with an increasing altitude, but there were 2 troughs between 4000~4100 m and 4200~4300 m.(5) Maximum tree height H(subscript max and HH(subscript max=37 mcorrelated negatively with altitude (P.05); but basal area and BA BA(subscript max=5.3m^2 correlated with altitudes, however, this trend was insignificant.

结果表明：(1)在调查的8个急尖长苞冷杉林样地内共有植物58种，分属于36科53属，其中植物较多的科有蔷薇科8种、百合科5种、杜鹃花科5种、毛茛科3种、菊科3种、柏科2种、忍冬科2种、伞形科2种，其余的28科各只有1个种；(2)物种科、属、种数、Margalef指数D(下标 M与海拔存在显著的负相关性(P.05)，在分布急尖长苞冷杉最低海拔3600m处出现物种丰富度的最大值；(3)多样性指数与海拔之间有极显著的负相关性(P.01)，并且在3700~4100m之间多样性指数保持稳定；均匀度指数与海拔梯度之间存在负相关性，但不显著；(4)Jaccard指数C(下标 j在海拔3600~4100m随海拔的升高而升高，在生境过渡带的4100~4200m之间Jaccard指数C(下标 j较低；Cody指数β(下标 c随海拔的升高呈下降的趋势，但在4000~4100m和4200~4300m 海拔区间出现2个低谷；(5)最大树高H(下标 max和最大胸径DBH(下标 max与海拔之间存在显著负相关性(P.05)；胸高断面积之和和立木密度与海拔之间存在负相关性，但不显著。

Vegetation of evergreen broad-leaved forest, soil, mainly to yellow and red-yellow soil.

植被为常绿阔叶林，土壤以黄壤和红黄壤为主。

The CCFG is a kind of economical activity with positive externality, its final products offered -the ecological benefits belong to the pure public goods, the nature of the economical compensation is to internalize the externality of the CCFG, so an economical compensation mechanism should be established with the government playing a leading role. The compensation receivers should be not only peasant households but also the county-level authority that performs the project. Besides central government, the compensation payers should still include the provincial-level governments who implement the project, the provincial-level governments of those beneficiary areas of midstream and downstream of basin, international organizations, enterprises and individuals, etc. Multiple channels of raising funds for the program should be worked out and the practice method should be transformed. Thediversified compensation ways should be chosen. In reality, insufficient compensation is the normality, the cost compensation may have more maneuverability. The decision-maker should carry on proper adjustment to the compensation standard, taking into account the factors about the environment conditions, the social-economic conditions, the ecological function of vegetation, etc. and make out different compensation criterions for different areas and different levels. The author puts forward it should be kept the policy of financial subsidies to the farmers who reforest ecological forest for a long term, should prolong the compensation time frameworks to the farmers who reforest economical forest.

本文认为，退耕还林还草是一项具有正外部性的经济活动，其提供的最终产品—生态效益属典型公共产品，经济补偿的实质就是要实现这种外部性的内部化，故应构建以政府为主导的经济补偿机制；补偿对象除了退耕农户以外，还应包括实施退耕还林还草的县级政府；补偿主体除中央政府外，还需将退耕地区省级政府、流域中下游受益地区的省级政府、国际社会、企业和个人等纳入其中；多渠道筹措退耕还林还草补偿投入资金，切实转变经济补偿的运作方式；选择相互协调、相互补充的多样化补偿方式；现实中，不充分补偿是常态，实行成本补偿更具可操作性；应对补偿标准进行适当调整，在综合考虑退耕地区自然环境条件、社会经济状况以及林草植被的生态功能等多种因素的基础上，制定分区分级补偿标准：对还生态林应采取长期补偿政策，对还经济林也要适当延长补偿年限。

Reforestation is an effective measure of vegetation restoration and erosion control in this area.

植树造林是该地区植被恢复发育及控制水土流失的有效措施。

3There are many relict, ancient, endemic plant class group in the vegetation of Mt. Yuanbaoshan, these all have important conservation value.

3元宝山植被中存在许多区系上孑遗、古老、孤立的植物类群，并且特有成分丰富，具有重要的保护价值。

Cardiff Hill, beyond the village and above it, was green with vegetation and it lay just far enough away to seem a Delectable Land, dreamy, reposeful, and inviting.

村庄外面高高的卡第夫山上覆盖着绿色的植被，这山离村子不远不近，就像一块"乐土"，宁静安详，充满梦幻，令人向往。

Cardiff Hill, beyond the village and above it, was green with vegetation, and it lay just far enough away to seem a Delectable Land, dreamy, reposeful, and inviting.

它的远近刚好吧它看上去像一片乐土，洋溢着梦幻色彩，安详诱人。

Where aridity, degeneration or soil erosion occurs as a result of overgrazing, users of the grasslands shall be required to reduce grazing and resow forage grass so as to restore vegetation.

因过量放牧造成草原沙化、退化、水土流失的，草原使用者应当调整放牧强度，补种牧草，恢复植被。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷