Along the way, we despoiled most of the land we worked, often turning verdant, natural ecozones into semi-arid deserts.
一路上，我们破坏了大多数我们曾经耕作过的的土地，经常把翠绿的自然生态区变成了半干旱的沙漠。
Dryland (s) management: The management of arid and semi-arid areas.
旱地管理：指对干旱和半干旱地区的管理。
The arid and semi-arid areas in the west part of China comprise about 37.
中国西部干旱半干旱地区约占全国土地面积的37。
Climate change, it says, will make food even scarcer in semi-arid countries such as Sudan.
该机构表示，气候变化让半干旱国家(如苏丹)的粮食更为稀缺。
This provides scientific basis for rational land use planning in arid and semi-arid areas.
这为干旱、半干旱地区制定合理的土地利用规划提供了科学依据。
However, drought stress strongly restricts maize production in most arid and semi-arid areas.
但是，在干旱与半干旱地区，水资源短缺一直制约着玉米产量的进一步提高。
Its territory covers Mesoamerica, from El Salvador to the semi-arid regions of Northen Mexico.
它的范围遍及中美洲，从萨尔瓦多到北部墨西哥的半干旱地区。
The semi-arid area which grows the crops have the characteristics of uneven and little rainfall.
半干旱地区具有降水不匀和多变低水的特点。
Shanxi Province, at the east of the Loess Plateau, is located in the typical semi-arid region in northern China.
山西省地处黄土高原东部，属我国北方典型的半干旱区。
Field experiments was used to study the change of soil N2O discharge flux in the northwestern arid and semi-arid areas.
田间试验研究了西北干旱半干旱地区地膜覆盖对土壤中n 2o排放通量变化的影响。
New sea 21 can save water, can use limited irrigation water, so it has advantage of power in arid and semi-arid region.
新海21是节水型品种，能够较充分的利用有限的灌溉水，在干旱半干旱地区具有强大的优势。
Water saving effects on surge flow border irrigation were studied under well irrigation in semi-arid area of West Liaoning.
研究了辽西半干旱区井灌条件下褐土涌流畦灌的节水效果。
Remaining of stubble and straw covering was suggested to be adopted in western arid and semi-arid areas of Liaoning province.
在辽宁省西部干旱和半干旱地区建议采用以留茬覆盖为主的保护性耕作方式。
Northeast semi-arid region is one of the main parts of the north dry farming area, most of which no irrigation water resources.
东北半干旱区是我国北方旱农地区的重要组成部分，多数地区没有灌溉水源。
Northwest of China, whose area accounts for 38 percent of the total, is one of the typical arid and semi-arid zone in the world.
我国西北地区是世界上典型的干旱半干旱地区之一，占国土面积的38%。
Northeast semi-arid region is one of the main parts of the north dry farming area, most of which have no irrigation water resources.
东北半干旱区是我国北方旱农地区的重要组成部分，多数地区没有灌溉水源。
The characteristics of alfalfa growth in the semi-arid sandy area for different buried depths of underground drip irrigation are studied.
研究了半干旱沙区不同滴灌带埋设深度下紫花苜蓿的生长特性。
In the northwest to southeast direction, annual precipitation increases, leading to transition from arid, semi-arid to sub-humid climates.
从西北向东南，年降水量逐渐增加，气候由干旱、半干旱向半湿润过渡。
Land degradation in arid, semi-arid and dry sub-humid areas resulting from various factors, including climate variations and human activities.
有各种原因造成的土地干旱退化，半干旱和干燥低湿地区。比如，气候变化和人类活动所致。
The Leopard Tortoise Stigmochelys (Geochelone) pardalis is a large grazing species that favors semi-arid (not dry), thorny to grassland habitats.
豹纹龟（龟）是一种大型的放牧物种，出现在有利半干旱（不干），棘手的草原栖息地。
Just the Namib Desert, said to be the oldest on Earth, having maintained at least semi-arid conditions for anywhere between 55 and 80 million years.
只有纳米布沙漠，据说是地球上最古老的沙漠，这儿处处保持至少半干旱的条件已有5500万到8000万年。
Rain was likely to become more intense and variable in many places, and farmers in the arid and semi-arid tropics were likely to become more vulnerable.
雨水在许多地方可能会变得更加密集与多变，处在干旱和半干旱热带区的农民可能会变得更加脆弱。
Maintaining a regular income is a constant battle as the climate in this semi-arid country is prone to severe, freezing winters and extremely dry summers.
蒙古位于半干旱地区，其气候易受严寒天气和极其干旱夏季天气的影响，正因为如此，牧民们总是要想方设法地维持稳定收入。
The experiment, demonstration and popularization provide the quick recovery of shrub-grass in semi-arid region of Loess Plateau with scientific foundation.
该体系的组装配套与试验、示范、推广为黄土高原农牧交错区灌草植被的快速恢复提供了重要的科学依据。
But using biotechnology, the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) has been able to help Indian farmers cope with the problem.
然而国际半干旱热带作物研究所(ICRISAT)利用生物技术，成功地帮助印度农民克服了这一问题。
The vegetation features and biomass of sandy rangeland in semi-arid area of Yanchi County, Ningxia were studied by means of plot investigation methods since 1991.
采用样地调查法，对盐池县1991年以来不同时期的老封育区、新封育区和对照区进行半干旱沙地草场的植被特征及其生物量比较研究。
The vegetation features and biomass of sandy rangeland in semi-arid area of Yanchi County, Ningxia were studied by means of plot investigation methods since 1991.
采用样地调查法，对盐池县1991年以来不同时期的老封育区、新封育区和对照区进行半干旱沙地草场的植被特征及其生物量比较研究。
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