![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)
In agricultural growth, we often need to trim and cultivate the farmland. What impact will there be on the soil nutrients of farmland when we farm and plough the farmland? Or do you need to pay attention to which areas can reduce the destructiveness of the soil when the farmland is leveled? Today, we use soil nutrient tester to measure the soil nutrients before and after farmland finishing, and then determine the impact of farmland land leveling on soil nutrients.
In the global soil, there is a large amount of carbon in the form of organic matter. On average, it is about three times as much as the carbon stock of vegetation (5.5×1017g) and twice as much as the atmospheric carbon stock (7.5×1017g). Therefore, the soil cannot be ignored. The huge carbon pool. It is estimated that the historical loss of soil organic carbon in the United States is 5×1015 g, but after the adoption of protective measures, the annual increase in farmland soil organic carbon is about 1.4×1014 g. Therefore, the soil carbon pool has a strong ability to fix carbon. However, with the increasing influence and interference of human activities on soil carbon pools, the accelerated release of organic carbon into the air may increase global climate change. As land formation progresses in China in large scale, this strong disturbance to soil carbon pools will inevitably break the carbon balance of the original ecosystem and increase the impact of human activities on soil carbon pools.
Land leveling is the reorganization and re-optimization of land resources and their utilization methods. While improving land use conditions, it must also pay attention to the ecological and environmental effects it brings. At present, the study of the dynamic changes of carbon storage in terrestrial ecosystems during the consolidation process from the perspective of land leveling is rare. Most of them focus on the analysis of the impact of land use on carbon storage. From a theoretical point of view, land leveling may destroy the physical structure of soil and lead to the formation of carbon sources. It may also result in carbon sequestration by improving soil quality. Therefore, it is of great significance to study the effect of land leveling on carbon storage in farmland soils. In particular, for China, which is experiencing an economic take-off phase, it is necessary to find alternative means to reduce or offset carbon emissions by reducing the unit GDP by 40% to 45% on the basis of the 2005 base period by 2020. It is of great practical significance to study the effect of land leveling on surface soil carbon fixation in farmland.
MOLD Manufacturing is Injection, Blow, Extrusion, Die-casting or forging forming, smelt, stamping after the various molds and the like to give the desired product tools used to make the desired product, divided injection mold, metal mold. Due to the high processing efficiency, good interchangeability, raw materials, and low production cost, the products can be used for machinery, electronics, engine, electrical and other parts
NOTE: All products are photographed in factories
just use as technology sample
Mold Manufacturing,Car Plastic Injection Mold Parts,Injection Automobile Plastic Molds,Plastic Injection Mold
Ruizhun Precision Metal Co., Ltd. , http://www.rzjmdiecasting.com