1.
Changing characteristics of CO_2 flux from the interface of soil-atmosphere at arid area in north temperate
北温带干旱地区土壤-大气界面CO_2通量的变化特征
2.
any of various terrestrial ferns of the genus Cheilanthes; cosmopolitan in arid and semi-arid temperate or tropical regions.
碎米蕨属的陆生植物；生长于全球干旱和半干旱温带或热带地区。
3.
The CO_2 Flux of Soils and the CO_2 Concentration of Surface Layer at Arid Region in Temperate Zone;
温带干旱地区近地层CO_2浓度和土壤CO_2通量
4.
Effects of air temperature change on spring wheat growth at different altitudes in northwest arid area
西北干旱区不同海拔高度地区气温变化对春小麦生长的影响
5.
Characteristics of the carbon dioxide concentration near the surface layer of the atmosphere in the arid region of the northern temperate zone
温带干旱地区近地层空气二氧化碳浓度的变化特征
6.
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
7.
Soil Dematiaceous Hyphomycetes from the Arid-semiarid Zones of Northwest China;
中国西北干旱—半干旱地区土壤中的暗色丝孢菌
8.
Research on Wetland Landscape Ecology in Arid and Semi-arid Areas in Northwest China;
西北干旱半干旱区湿地景观生态研究进展
9.
Determination of thermal parameter of aerated zone in the arid and semi-arid region
干旱半干旱地区包气带热参数模型研究
10.
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
11.
Feasibility and Prospect for Developing Alfafa Industrialization in Farming-livestock Integrated Region of Northwestern Arid and Semiarid Area;
西北干旱半干旱地区农牧交错带发展苜蓿草业的可行性及前景分析
12.
Discipline of temporal and spatial variation of annual mean air temperature in arid and semiarid region in northwest China in the recent 46 years
中国西北干旱半干旱区年平均气温的时空变化规律分析
13.
chiefly evergreen shrubs of warm dry areas of western North America.
北美西部干旱暖和地区的常绿灌木。
14.
Calibration and Analysis of the Surface Temperature in the Arid and Semi-arid Area Based on Landsat ETM+Data
基于Landsat ETM+影像的干旱半干旱地区地表温度反演研究与分析
15.
Study on Ultra-dry Storage of Four Forest Seeds from Arid and Semiarid Areas of Northwest China;
西北干旱半干旱地区四种林木种子超干保存研究
16.
Control and Simulation of Greenhouse Temperature Environment in Cold Arid Regions
寒冷干旱地区温室内温度环境模拟及控制
17.
Cold regions cover the areas with the average temperature of the coldest month below 0’C.Arid regions cober arid and semiarid areas.
寒区是指冬季最冷月平均温度为零度以下地区；旱区包括干旱区和半干旱区。
18.
Diagnosis and Assessment of Agricultural Drought System s Vulnerability in Irrigated Area--Taking Xingtai County of Hebei Province as An Eexample;
灌溉农区农业旱灾系统脆弱性诊断与评估——以暖温带半湿润地区河北邢台县为例