1.
A comparative study on business ecosystem and biological ecosystem;
商业生态系统与自然生态系统的比较研究
2.
Rehabilitation River Natural Ecosystem,Construction Lu an Eco-city;
修复河流自然生态系统，建设六安生态城市
3.
Natural and agricultural ecosystems form a continuum.
自然生态系统和农业生态系统构成一个连续的统一体。
4.
Study on the Evaluation of Economical Value of Natural Eco-system Based on the Emergy Theory: A Case Study on the Xuebaoshan Natural Eco-system in the South Slope of the Daba Mountain
基于能值理论的自然生态系统经济价值研究——以大巴山南坡雪宝山自然生态系统为例
5.
So now we're working to try to restore the natural system."
所以我们正努力设法恢复这里的自然生态系统。
6.
The world's natural ecosystems act as a buffer.
地球上的自然生态系统起着一种缓冲的作用。
7.
A View to the Relations between Man and Nature On the Basis of Ecosystem and Ecologic Balance
从生态系统及生态平衡看人与自然的关系
8.
Study on Characteristics of the Natural Landscape Ecosystems in the Yellow River Beach;
黄河滩区自然景观生态系统特征研究
9.
Chomolungma National NatureReserve Ecotourism Self-Service System Design;
珠峰自然保护区生态旅游自助服务系统的设计
10.
Terrestrial Ecosystem Nature Reserve System Planning in China;
中国陆地生态系统自然保护区体系规划
11.
The natural environment is usually a somewhat Balanced ecosystem.
自然环境通常是个比较平衡的生态系统。
12.
The City Ecological Planning Based on the Nature-economy-society Complex System;
基于自然—经济—社会复合系统的城市生态规划
13.
Construction of Urban Green Space System Having Ecological Function;
创建具有自然生态效应的城市绿地系统
14.
A Study on the Forest Ecosystem Function of the Jiuzhaigou National Nature Reserve;
九寨沟自然保护区森林生态系统功能研究
15.
The Evaluation of the Forest Ecosystem Services for Nature Reserve;
森林类型自然保护区生态系统服务价值评估
16.
Systematic Planning and Mangement of Eco-tourism in Nature Reserves;
在自然保护区开展生态旅游的系统规划和管理
17.
Building up the city ecosystem with the nature and the society in harmony;
构造自然与社会相协调的城市生态系统
18.
An emergy analysis on the ecotourism system of Wuyishan Natural Reserve
武夷山自然保护区生态旅游系统能值分析