1.
Semi-arid land ecosystems
半干旱地区生态系统
2.
Located in an arid and semi-arid area, Ningxia is one of the weakest ecological systems in China.
宁夏地处干旱半干旱地带，是全国生态系统最脆弱的省区之一。
3.
The Law of Carbon Cycle of Terrestrial Ecosystem in Arid Region;
干旱地区陆地生态系统碳循环规律研究
4.
Optimal adjustment of agricultural eco-environment system in arid and semi-arid regions;
干旱半干旱地区农业生态环境系统优化调控研究
5.
The Harm of Drought to the West Region and Its Prevention Strategy;
干旱是西部地区生态系统受损的关键因素
6.
Estimation of Land Utilization Ecosystem Service Function Value in Semi-arid Intra-country
半干旱地区县域土地利用生态系统服务功能价值估算
7.
Analysis on plant α and β-diversity of wetland eco-system in semi-arid region
半干旱地区湿地生态系统植物α及β多样性分析
8.
The Research on the Agro-ecosystem Productivity Development in the Ecotone in Dry-semidry Area between Agriculture and Pasture in North China;
北方干旱、半干旱农牧交错带地区农业生态系统生产力开发途径研究
9.
The Study on Technology and Method of Water Resources Assessment of the Typical Ecosystem in Arid Area;
干旱地区典型生态系统水资源评价技术方法研究
10.
Study on LUCC and the Ecosystem Value at Semi-arid Region;
半干旱区土地利用/覆被变化及生态系统服务价值研究
11.
Impacts of Land Use Changes on Ecosystem Services Value in Typical River Basin of Arid Area
土地利用变化对干旱区典型流域生态系统服务价值的影响
12.
Stability evaluation of lake wetland ecosystem in arid region of Northwest China-in Yinchuan city
西北干旱区湖泊湿地生态系统稳定性评价——以宁夏银川市为例
13.
Energy analysis of suburban agro-ecosystem and optimization development in arid and sub-arid region:A case in Urumqi;
干旱半干旱地区城郊农业生态系统的能值分析与优化发展——以乌鲁木齐市为例
14.
Long-Term Effect of Ecosystem Evolution in Arid Regions, NW China;
中国西北干旱区生态系统演化的长程效应研究
15.
Emergy Analysis of Oasis Agricultural Eco-Economic System in Arid Region;
干旱区绿洲农业生态经济系统能值分析
16.
The Energy Flow Analysis of Rural Ecological Economic System in Semiarid Degraded Mountain Area;
半干旱退化山区农村生态经济系统能流分析
17.
Groundwater has very important eco-value in arid and semi-arid regions.
干旱半干旱地区地下水具有重要的生态价值。
18.
Ecological Responses Along the Road Corridor in the Arid & Semi-Arid Regions of Northwest China;
西北干旱半干旱地区公路廊道生态响应研究