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By making a evaluation index system and using AHP to determine the evaluation factorg weights, this paper builds the valuation model of eco-environmental stability of Tibet and uses the overlay function of rasterGIS to make a result map, and finds the distribution characteristics of eco-environmental stability of Tibet based on the analysis of result map.

通过建立西藏生态环境稳定性评价指标体系和利用AHP法确定评价因子权重,构建西藏生态环境稳定性综合评价模型,采用栅格GIS的叠加分析功能生成评价结果图,根据结果对西藏生态环境稳定性的空间分布特点做出分析,并提出相应对策。

If the ecosan would be developed there, new industries could be promoted and 50-100 thousands of employing opportunities could be created, incidence rate of diseases could be reduced, 560 thousand cubic meters of methane could be recycled, investment of sanitary toilet could be reduced to an acceptable price, i.e., 600-750 RMB yuan per house, ecological agriculture could be developed, and pollutants discharge could be reduced while ecological security could be guaranteed.

若在该区域推广生态卫生,可能产生社会、经济及环境效益如下:带动新兴产业,增加5~10万的直接就业机会;降低疾病感染率;回收沼气56万立方公尺;卫生厕所投入控制在可接受的600~750元户^(-1);促进生态农业循环;降低污染物排放、保障生态安全。

The most areas of Northwest China have unique biodiversity, sensitive to climate change, and the features of this regin are drought climate and vulnerale ecosystems. This region also plays an important role to maintain the bio-security on the regional, even national level.

我国西北大部分地区气候干旱、生态系统脆弱,对气候变化反应敏感,并在此脆弱的生态系统中孕育着独特的生物多样性资源,对维护区域乃至全国生态安全具有重要作用。

In this dissertation, four aspects of ECM fungi were studied in a subtropical forest, a ECM fungi identification and biodiversity estimation, using morphological and molecular ways; b genetic structure of ECM fungi population, taking two case studies; c structure of ECM fungal community, based on sporocarp and plant investigation over-ground; and d growth response of host and non-host plant to ECM fungi inoculation.

由于外生菌根真菌的宿主植物常常是一些生态系统的优势种和建群种,并且这些真菌还参与了许多森林生态系统的有机和无机元素循环、物种的竞争和共存、生物多样性的维持、生态系统的演替等过程,因而对外生菌根真菌的研究有助于对这些生态系统维持和演替机制的深入理解。

Based on the theories of ecological restoration and ecological economy,and the analysis of domestic and foreign success cases, we maintain the main goal of wetland park planning is to restore or recover of wetland ecosystem services, and the priority task is to restore or recover the top-drawer ecosystem services, which ought to be ensured basing on scientific researches and analyses in different regions.

笔者依据生态恢复学和生态经济学原理及对国内外成功案例分析后认为湿地生态服务功能的恢复与重建应是湿地公园建设的主要目标。

Their possible influences on water quality in the Middle Route of South to North Water Transfer Project were analyzed.

在此基础上,提出了加强水土保持,水源地保护等加速地区生态环境建设的方法,实施居民避让搬迁和生态移民工程、环境污染综合治理等解决陕南地区生态环境问题的对策。

Greater Brown Wren Warbler and yellow-bellied Wren Warbler (P.flavive-ntris) are the sympatric species pair in south China.In this paper,the interspecific niche relationship between the two bird species was studied.

本文研究了褐头鹪莺和黄腹鹪莺(P.flaviventris)在取食高度、取食基层和取食方法3个生态维度上的生态位宽度和生态位重叠以及它们与复合种群密度的关系。

First of all, according to analysis the effect of ecosystem during the water cycle, the type of ecological water demand in wetland was clarified which is an azonal ecological system supported by the runoff with the feature of azonal.

通过分析湿地水文循环的生态效应,湿地是由径流支撑的非地带性生态系统,具有泛区域特点,湿地生态需水须要在研究湿地径流场与生物多样性变化基础上进行。

Construction of the community;⑤Expanding sources of funding to guide Chagan Lake Nature Reserve in the ecological protection and construction.

根据限制因子,提出五个方面的保护对策与措施:①水资源调控对策与措施;②石油开发生态保护对策与措施;③调整产业结构发展生态农业措施;④社区共建;⑤拓展资金来源保障政策实施,以便指导查干湖自然保护区的生态保护与建设。

Objective To determine the niche breadth and overlap in eleven dominant species of gamasid mites parasitic on 39 species of small?mammal hosts around Biluoxueshan Mountain in Weixi, Yunnan.

目的 应用现代生态学中生态位的理论和方法,对云南省维西县碧罗雪山周边地带11种医学革螨在39种小兽宿主资源上的生态位宽度和生态位重叠进行研究。

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推荐网络例句

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了,但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场,你等着挨绳子吧!

Several theories about reigniting and extinguishing of the arc have been refered.

本文综合考虑了几种电弧重燃和熄灭理论。