半干旱地区

发展节水农业，提高水分利用效率（WUE），是保证干旱半干旱地区农业可持续发展的途径。

It has become an important way to develop water-saving agriculture and increase Water Use Efficiency ( WUE ) for sustainable development of agriculture in arid and semi-arid area .

免耕秸秆覆盖（NTS）极显著提高了表层TOC含量，在干旱半干旱地区秸秆还田17个月就可使表层土壤TOC含量增加20.77%。

Leaving crops straw affects soil total organic carbon ( TOC ), no-till with straw cover ( NTS ) can significant improve the content of TOC on the surface of the soil , TOC content can be improve 20.77 % in semi-arid area after return straw for 17 months .

UV-B增强对中高海拔干旱半干旱地区春小麦植株形态的影响

Effects of enhanced Ultraviolet radiation-B on plant form of spring wheat in middle-high elevation 、 arid and semiarid regions

掘穴蚁（Formicacunicularia）营筑丘活动，并通过营巢活动影响土壤的物理化学特性，是中国干旱和半干旱地区营巢的优势蚁类。

Formica cunicularia ( FC ) is one of the dominant mound-building ant species in arid and semi-arid regions in China .

半干旱地区坡地退耕还林中的DJS造林法研究华东监测区营造林与人工林质量状况评价

DJS Afforestation Method for Converting the Land for Forestry on Slope Land in Semiarid Area A research on the Evaluation of Afforestation and Plantation Quality in East China

在宁夏南部半干旱地区，对春小麦不同时期灌水对小麦产量及水分利用效应进行了研究，得出覆膜春小麦不同生育期灌水30mm，与不灌水相比，均有增产效果。

Compared with no irrigation fields , 30 mm of water supplement at any growth stage will improve yield in spring wheat mulched with plastic film .

降水输入在7、8、9三个月较大。本文建立的数学模型适于半干旱地区，密度为6×10m的泡桐人工林，对不同树龄、土质的泡桐林只起参考作用。

The models presented in this paper are suitable for the Paulownia plantation with the density of 6 × 10 meter in medium drought areas , playing a reference role in different soil texture and different age Paulownia plantation .

提出了利用高分辨率卫星影像修正线性光谱混合分解模型分解的TM影像的植被分量，建立提取干旱半干旱地区植被覆盖度的模型。

A model that was fit for the extraction of vegetation coverage in arid zones was presented . In this model , TM image was decomposed by linear spectral mixture mode and then the vegetation component of TM image was amended by the high-resolution satellite image .

探讨UV-B辐射增强对中高海拔、干旱半干旱地区春小麦植株形态的影响，可为正确评估UV-B增强对春小麦生长发育的影响程度并据此制定合理的应对措施提供科学依据。

To estimate the effects of enhanced ultraviolet radiation-B on upgrowth of spring wheat and design answerer plans , the article studied influence of enhanced ultraviolet radiation-B on plant form of spring wheat in middle-high elevation 、 arid and semiarid regions .

位于西北干旱半干旱地区的甘肃省及其周边地区是西北粮食作物和经济作物的生产基地，有大量使用HCHs的历史。

Located in the northwest arid and semi-arid areas , Gansu province and its surrounding areas is a production base of grain crop and commercial crop in Northwest China in which technical HCHs was heavily used .

我国年降水量250～450mm的半干旱地区，主要发育有栗钙土、淡黑垆土、黑麻土、黄绵土和灰钙土。

Chestnut soil , light black mature soil , black gunny soil , yellow cotton soil and sierozem are principally developed in semi arid area with 250 ~ 450 mm precipitation .

唇形科（Labiatae）青兰属（Dracocephalum）植物约60种，主要分布在亚洲温带，多在高山及半干旱地区，少数延至中欧及北欧，1种分布在北美。

There are about 60 species belong to the genus Dracocephalum , family Labiatae . These plants distribute in alpine and semidry regions mainly in temperate Asia , with a few in Europe , one in North America .

宁南旱地冬小麦丰产栽培综合农艺措施优化方案的研究通过回归分析，得出在宁南半干旱地区微集水种植谷子比较适宜的沟垄宽度为45cm。

Optimal Scheme of Comprehensive Agronomic Measures for High Yield Winter Wheat Cultivation in Rainfed Area in the South of Ningxia By regression analysis , the optimum width of ridge and furrow was about 45 cm .

从地表能量平衡原理入手，结合地面同步实测数据和气象数据，运用遥感蒸散法，建立了基于亚像元的半干旱地区区域双层蒸散模型（SRDEM）；

According to surface energy balance theory , the semi-arid regional dual-layer evapotranspiration model ( SRDEM ) is established , using remote sensing monitoring of evapotranspiration at sub-pixel level , combined with the field measurement and meteorological data .

干旱半干旱地区径流林业研究进展

Progress and prospect of runoff forestry in arid and semiarid regions

干旱半干旱地区降雨下渗过程的若干问题探讨

Some Aspects of Rainfall Infiltration Processes in Arid and Semi-arid Region

摘要干旱半干旱地区地下水具有重要的生态价值。

Groundwater has very important eco-value in arid and semi-arid regions .

半干旱地区生态建设方略初探

Probing into the ecological construction project in the semi arid region

干旱半干旱地区地下水问题

Some Problems on Groundwater in the Arid and Semi-arid Regions

半干旱地区不同集雨技术措施试验研究

Dissimilar technology of accumulating rain in semiarid area through experiment

干旱半干旱地区的干旱指数分析

Analysis on the drought index in arid and semi-arid regions

干旱、半干旱地区蒸散过程的模拟研究

Study of Evapotranspiration Processes Simulation in Arid and Semi-Arid Regions

半干旱地区洪水预报的若干问题

Problems on flood forecasting in the semi - arid region

甘肃干旱半干旱地区数种啮齿动物挖掘活动引起沙漠化问题的探讨

The problem of rodent in arid and semi-arid areas in Gansu Province

半干旱地区草地与裸地水热通量的研究

Moisture and Heat Fluxes over Grassland and Bare Soil in Semi-arid Area

半干旱地区地表能量平衡特征研究

Study on Features of Surface Energy Balance in Semi-arid Region

黄土丘陵半干旱地区柠条根系的研究

A study on Caragana microphylla root system in semiarid loess hilly region

干旱半干旱地区雨水资源利用技术在林业中的应用

Rainwater Utilization Technologies for Forestry in Arid and Semi-arid Regions

半干旱地区发展集水型生态农业模式研究

The eco-agricultural model of the development of rainwater-harvesting technology in semiarid area

西北半干旱地区葡萄园生草对土壤水分的影响

Effect of green coverings on soil water content in vineyards