| 词汇 | example_english_semi-arid |
| 释义 | Examples of semi-aridThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. The semi-arid climate in the study area has low, highly variable rainfall, distributed in two rainy seasons. Although the focus of this proposition is the developing world tropics, problems with agricultural development in semi-arid regions are not confined to the developing world. In addition to these natural forests, vast areas of woodlands occur in the semi-arid to sub-humid parts of the country. For crop/livestock production systems in semi-arid regions, quality and quantity of forage produced for each unit of water used is important. But there are also many examples of resource decline and low production, particularly in the humid tropical rainforest and in the semi-arid savanna regions. The presence of tsetse fly and the semi-arid conditions of the region had historically precluded settlement by large populations. This however is not a serious problem, since most of the production of corn takes place in the semi-arid portion of the territory. In the semi-arid areas, where this type is quite frequent, the signal is the wetting of the soil. Such systems are most likely to be found in areas with a high annual precipitation, although some semi-arid regions may also be included. In-terms of vegetation, 80 per cent of the district can be classified as low savanna and arid/semi-arid (ranching zones). Additionally, 11 similar semi-arid grassland sites in the same study area were selected for an investigation of oviposition height and vegetation structure at different sites. Large-scale simulation of wheat yields in a semi-arid environment using a crop-growth model. Such scarcity is typical of arid and semi-arid regions where irrigation projects bring former deserts into agricultural production. Climate in the district is semi-arid with bi-modal rainfall. As an example, thin impure coal seams can form in places other than where a permanent water table allows peat accumulation, even in semi-arid conditions. Therefore, soil moisture conservation is crucial for maintaining soil biological processes in smallholder cropping systems, especially in sub-humid and semi-arid tropics. Low soil water availability decreases decomposition rates in the dry sub-humid and semi-arid tropics despite their higher temperatures. It cannot be pretended that the expansion of new farms in very risky semi-arid regions leads to healthy farm incomes. The improved soil fertility beneath isolated trees in semi-arid savannas is important for herbaceous biomass yield especially of canopy shade-tolerant species. Effects on soil moisture on shrub seedling survival in a semi-arid grassland. Modelling the impact of small-scale heterogeneities on tree-grass coexistence in semi-arid savannas. This can be considered of key importance in arid and semi-arid areas where water is a limiting ecological factor. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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