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论文代写:城市化及其对农业用地的影响

论文代写:城市化及其对农业用地的影响

作品简介:

土壤:它是地球上最层是矿物质的混合物,气体,有机,液体,粘土和岩石颗粒支持植物的生命周期。

水土流失:这是一个自然过程但发生速度和更危险的结果如果是由于人类的活动,如森林砍伐和农业用地上建设。

基本组件的土壤:土壤是由45%的岩石颗粒的形成是由于风的压力,水和化学过程在一段时间内,25%的水来自各种来源的河流和降雨,25%来自不同气体在空气中,5%的有机质形成的落叶树木和动物的遗体。

这里讨论的主题是“如果建设将继续良好的土壤,未来是什么影响或限制城市发展为农业用地?”

土壤pH值:土壤的酸度和碱度的混合物。PH值测试测量程度的酸性和碱性物质在土壤中。土壤中它是一个重要的因素,因为它影响植物需要养分在土壤的能力的增长。如果土壤pH值为7.0,它被认为是中性的,而土壤含有更多的酸值的pH值低于7.0如果土壤pH值高于7.0则是碱性(王1997)。低于7.0的土壤(pH),那么它缺乏氮、磷、钾和硫。

论文代写:城市化及其对农业用地的影响
Introduction:
Soil: It is the upper most layer of earth and is a mixture of minerals, gases, organic remains, liquids, clay and rock particles which support the life cycle of a plant.
Soil Erosion: It is a natural process but occurs at a faster rate with more hazardous results if it is a result of activities of human beings such as deforestation and construction on agricultural land.
Basic components of soil: Soil is made up of 45% rock particles which are formed due to the pressure of wind, water and chemical processes over a period of time, 25% of water from various sources of river and rains, 25% from various gases present in the air, 5% organic matter which is formed from the fallen leaves of the trees and remains of animals.
Here the topic of discussion is “if construction will be continued on good soils, what are the future implications or constraints for urban development into agricultural land?”
Soil pH: It is a mixture of soil acidity and alkalinity. PH is tested to measure the degree of acid and alkaline as a substance in the soil. It is an important ingredient in the soil as it influences the capacity of plants to take nutrients available in soil for their growth. If the pH level is 7.0 in the soil then it is considered as neutral whereas the soil which contains more acids have the value of pH below 7.0 and if pH is above 7.0 then the soil is alkaline (Wang, 1997). The soil which is below 7.0 (pH) then it lacks nitrogen, phosphorous, potassium and sulphur.