查询词典 Forest Service

Soil and water conservation is an important ecological service of forest systems.

水土保持是城市森林生态效益中最重要的一项，它是森林其他各种效益的基础。

In addition, we analyzed forest ecosystems service.

此外，我们分析了南昆山自然保护区的森林生态系统服务。

The forest ecosystem service both ecological products and ecological service, and their economic valuation are discussed.

本文通过对国内外森林生态系统管理理论的研究分析，提出了森林生态系统管理的定义。

Thus this dissertation eventually forms a set of theoretical system on incentive mechanism of forest ecological service investment.

通过这些研究，最终形成一套森林生态服务投资激励机制的理论体系。

There are some links about Plant Sciences Library and Oxford Forest Information Service in the page.

网页中还有牛津植物科学图书馆和林业信息服务中心的链接。

Last, Minjiang watershed as an example to study the realization mechanism of the forest ecological service value was given.

消费者对森林生态服务的支付愿意是其主导服务价值表现，是森林生态服务价值补偿的基础。

Forest ecosystem ; Forest ecosystem service ; Assessment index system ; Value assessment

森林生态系统；服务功能；评价指标体系；价值评估

The ecological service value theory is the researching focus of Ecology and Geography today. Using the ecological service value theory to evaluate the forest in Khotan drainage area is the center of my paper; in the meantime, it is also the creative point.

生态系统服务价值理论是目前生态学、地理学等环境科学研究的热点问题，将生态服务价值理论应用于深居内陆腹地，气候干旱的和田河流域，计算其天然森林生态系统的服务价值的评估，是本论文研究的中心，也是创新点所在。

After reading plenty of relative literatures and collecting lots of first-hand datum, adopting rational methods and indexes, worked out the evaluation of the forest in Khotan drainage basin, including eight indirect service value and five direct service...

本文的研究结果表明：在干旱区，社会经济发展、资源的开发与利用，始终要以生态环境的保护为前提；以生态服务价值的计算结果为依据，向环境管理部门提出环境管理建议若干。

It revealed: Firstly, the plant community, the major environmental factors illumination degrees, surface temperature, air temperature, day air humidity changes curve and changes in point of curve similar; Secondly, measuring three points mixed lawn-Chinese littleleaf box-Guohuai plant community in the three observation of the ecological effects of the plant community most obviously, its sunshade rates, the average surface temperature 0 cm Service rates, the average surface temperature -5.0 cm Service rates, the average temperature cooling rate, the average humidification effect respectively 36.3%, 34.7%, 18.9%, 6.9%, 13.9%; wood forest plant community occasions, mixed lawn-Chinese littleleaf box plant community smallest.

以校园为例进行实地观测，比较详尽地分析了生物种群组成的多样性对园林生态系统的影响，结果表明：①植物群落内的主要环境因子光照度、地表温度、空气温度、空气湿度的日变化曲线与对照点日变化曲线相似；②3种测点中混合草坪－黄杨－国槐植物群落在3种观测的植物群落中生态效应最明显，它的遮光率、地表0 cm处平均降温率、地表－5.0 cm处平均降温率、气温平均降温率、平均增湿效应分别为36.3%，34.7%，18.9%，6.9%，13.9%；桐树林植物群落次之，混合草坪－黄杨植物群落最小。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。