Sweet clover thrives in the more humid parts of the country, as well as in the semiarid regions where the rainfall is but three-fifths of that required for the normal growth of such crops as red clover and timothy.
In the semiarid regions of the West sweet clover has proved to be somewhat more drought resistant than alfalfa.
The Landsat Thematic Mapper (TM) has increased our ability to detect and map the distribution of minerals in volcanic rocks and related mineral deposits in arid and semiarid lands.
Some of the more productive petroleum areas on Earth are found in arid and semiarid regions of Africa and the Mideast, although the oil reservoirs were originally formed in shallow marine environments.
Arid and extremely arid land are deserts, and semiarid grasslands generally are referred to as steppes.
New ways are also being sought to find and tap groundwater resources and to develop more effective ways of irrigating arid and semiarid lands.
If we are to stop and reverse the degradation of arid and semiarid lands, we must understand how and why the rates of climate change, population growth, and food production adversely affect these environments.
Illustration: Camels and other animals trample the soil in the semiarid Sahel of Africa as they move to water holes such as this one in Chad (photograph courtesy of the U.
Irrigation problems in our semiarid regions are receiving careful and increased consideration.
The Forestry Division of the Department is giving special attention to the treeless regions of our country and is introducing species specially adapted to semiarid regions.
But the action of wind is most strikingly effective in desert and semiarid regions.
Dunes are very common in many places, as for example, along our middle Atlantic coast; in Dune Park of northern Indiana; and in the great arid and semiarid regions of the Western States.
Typical of the Upper Sonoran Life Zone, these small, hardy trees can withstand dry periods and survive in semiarid country.
Water in this semiarid land had to be carefully managed, whether flood irrigation or planned canal irrigation was used.
The land between the tributaries is highly diversified; much is arid or semiarid with small streams running intermittently or with scattered springs that may be dry during parts of the year.
High honor should be shown him for his faith in the semiarid region, for his keen observation, and his persistence in the face of difficulties.
Nearly all of the great countries of the world having extensive semiarid areas are directly interested in dry-farming.
They are supplementary systems of agriculture in arid andsemiarid regions.
Even with this addition the rainfall shows the district to be of a distinctly semiarid character.
In Alberta and other places it has been now practiced successfully for eight or ten years, and it may be said that dry-farming is a well-established practice in the semiarid regions of the Dominion of Canada.
About 1895 the word began to pass from mouth to mouth that probably nearly all the lands in the great arid and semiarid sections of the United States could be made to produce profitable crops without irrigation.
It is especially adapted to arid and semiarid conditions, but will probably thrive best where the winters are dry and summers wet.
To-day, current events point to the arid and semiarid regions as the chief dependence of our modern civilization.
North Dakota, Kansas, and Montana, under arid and semiarid conditions, it was 71.
Brazil Brazil, which is greater in area than the United States, also has a large arid and semiarid territory which can be reclaimed only by dry-farm methods.
A large number of stations are maintained by the Department over the arid and semiarid area for the purpose of studying special problems, many of which are maintained in connection with the state experiment stations.
Particularly in arid and semiarid regions, where no mantle of vegetation is at hand to mask the surfaces of the firmer rock masses, differences of this kind are stamped deeply upon the landscape.
Such streams are said to be intermittent, and are especially characteristic ofsemiarid regions (Fig.
These animals are usually restricted to sandy soils in semiarid regions.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "semiarid" in a variety of sentences. We hope that you will now be able to make sentences using this word.
