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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。

Based on the analysis to the formal model of ecological water, new ecological water calculation model was established.

在以往生态需水计算模型的基础上，提出了利用空间关联分析方法计算生态地下水位埋深值的新方法。

Evaluation of ecological environment frangibility is important for knowledge, preservation, reform of the ecological environment, and harmonious relation between man and nature.

生态环境脆弱性评价对认识、保护和改造生态环境，促进人与自然的和谐发展具有重要意义。

Depending on the Qingyang Loess Plateau Test Station, according to the theory of ecological economy,using modern biological and ecological engineering technique, the complex system composed by fruiter and foragegrass, grain crops, economic crops were approached.

以庆阳黄土高原试验站为依托，根据生态经济学原理，运用现代生物和生态工程技术，探讨了果树与牧草、粮食作物、经济作物等构成的复合系统。

Moving the form ecological socialism has been not to come into being at the same time , it has experienced the entire process that thought germ carries out again to theory molding to politics as thought form ecological socialism and as the theory form and society.

作为思想形态的生态社会主义与作为理论形态和社会运动形态的生态社会主义不是同时产生的，它经历了思想萌芽到理论成型再到政治实践的完整过程。

The main results include:(1) Ecological economy and landscape ecology are merged and applied in sustainable development evaluation of Beijing mountainous region. The landscape measure of regional sustainable development is to build a model landscape with reasonable structure, efficient function and harmonic relationship of ecological system.

主要取得的研究结果：(1)提出了生态经济理论与景观生态理论相结合进行北京山区可持续发展评价，区域可持续发展的景观途径就是将人类活动对于景观演化的影响导入良性循环，建立一种由结构合理、功能高效、关系协调的生态系统组成的模式景观，以实现区域可持续发展。

For building the ecological engineering to purify the eutrophic water, six economic plants ,which are Cress,Ipomoea aqutica,leek,Chinese chives,Celery and Hemerocallis respectively,were selected,and the purification ability and the bio-ecological character of them were studied.

为建立净化富营养化水体的生态工程，本试验选择水芹、水蕹菜、韭菜、葱、黄花菜、芹菜等6种经济植物，研究了各种植物的净化能力及其生物学特性。

Based on the eco- environment function, confirmed the constitution of eco- environment water demand(including the inside of the watercourse.and the ecological water demand of the outside of the watercourse such as ecological water demand of economical crop, of lake or reservoir and of cities.).③Analyzing the physical geography, hydrography, economy characteristic and water resource status, getting the proper calculation method. The Tennant applied to the eco- environment water demand of inside of the watercourse, woodland minmum eco- environment water demand calculation method applied to the eco- environment water demand of woodland, water ration method applied to farmland the eco- environment water demand, water evaporation method applied to the reservoir eco- environment water demand.

本文以流域生态环境需水为主要研究对象，因此重点阐述了流域生态环境需水量的分类和计算方法；②通过分析流域生态系统构成与流域生态环境功能，并分时段和河段考虑，确定了桃花江流域生态环境需水量的组成，即包括维持现状河道生态环境功能现状的现状生态环境需水量与流域生态环境改善的生态环境需水量，前者包括河道内生态环境需水量(维持河道基本生态功能需水量、维持河道自净稀释功能需水量、补充地下水水量及美化流域景观娱乐需水)与河道外生态环境需水量(流域内植被、森林、农田的需水量和与河道相连的池塘、水库等的需水量)；后者还包括为治理改善流域生态环境而拟规划林业生态建设所需水量；③对桃花江流域的自然地理、水文地质和社会经济特征以及水资源现状及其主要生态环境问题进行了综合分析，提出了适合桃花江流域的生态环境需水量计算方法，即采用Tennant法计算河道内生态环境需水量，采用林地最小生态环境需水量法计算林地生态环境需水量，采用需水定额法计算农田生态环境需水量，采用水面蒸发法计算水库、池塘生态环境需水量。

Ecological water requirement is an important research content of ecological hydrology.

生态需水是生态水文学的重要研究内容之一。

In Liangshan area ,the climate is various;ecological types are diversified,especially the Jinsha River is the special ecological section with rich crop idioplasm.

凉山地区具有多种气候带，生态类型多样，特别是金沙江河是该地区的特殊生态区，作物种质资源丰富。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。