1 Analysis of Land Consolidation and Water Resources Balance
According to China's national conditions, the current land consolidation generally refers to the land consolidation in rural areas, that is, in a certain area, according to the overall land use planning, administrative, economic, legal and technical means are adopted to comprehensively rectify mountains, waters, fields, forests, roads and villages, improve the land use structure and production and living conditions, increase the available land area, and improve the land utilization rate and output rate. In essence, land consolidation includes land consolidation, land reclamation and land development, which are the three basic ways of land consolidation. Land consolidation refers to a set of comprehensive measures to change the situation of scattered plots and flowers, improve land, improve land utilization rate, productivity and labor productivity, improve the environment, rationally organize land use and adjust land ownership. Land reclamation refers to the activity of taking remedial measures to restore abandoned land to a usable state. Abandoned land refers to the land that cannot be used at present because of excavation, collapse, occupation, pollution or natural disaster damage caused by production and construction activities. Land development refers to the process of turning unused land or land with low utilization efficiency into usable land with high comprehensive economic, social and ecological benefits through engineering, biological or comprehensive measures.
Water resources balance analysis is an important part of land consolidation, which plays an important role in promoting the sustainable utilization of land resources and improving ecological benefits. Relevant workers can provide realistic basis for the development of land consolidation by analyzing the water supply and demand or seasonal water balance in land consolidation areas.
2 Characteristics of balance analysis of water and soil resources in land consolidation planning
The survival and development of human society can not be separated from water, and water resources are one of the irreplaceable main resources for human survival, so the research on water resources balance analysis has a long history. Judging from the current implementation of land consolidation projects in China, the balance analysis of water and soil resources in land consolidation planning has the following characteristics.
First of all, the analysis of water resources balance in land consolidation planning has the characteristics of narrow analysis area. The water resources analysis object of other projects is generally the whole river basin or the whole water system of the region, while the water resources balance analysis object in the process of land consolidation is often a single village, and there are few research objects, mainly because the current land consolidation in China mainly focuses on land consolidation in agricultural areas.
Secondly, the balance analysis of water resources in the process of land consolidation planning mainly considers the future development factors. Land consolidation is beneficial to increase the effective planting area and improve the planting quality. Its balance analysis of water resources in this region needs to deeply explore the balance of water resources in this region, and provide realistic basis for the development of land consolidation. However, we should also fully consider whether the existing irrigation facilities can meet the demand for water resources for future farmland planting after land consolidation.
In addition, the topography, geological conditions and irrigation facilities in different regions are different, which will lead to different results of water resources balance analysis. Therefore, in the process of regional water resources balance analysis, it is necessary to fully consider the differences in quantity and space between regions, that is, whether the goal of water resources balance can be achieved in quantity, and different water resources needs can be generated according to the different planting structures between regions in space, so as to arrange irrigation facilities more efficiently.
3 Analysis of water resources balance in land consolidation planning
Influenced by China's domestic environment, water balance analysis in land consolidation planning mainly involves water supply and demand balance analysis and seasonal water balance analysis. Next, I will analyze it from these two aspects.
3. 1 Analysis of supply and demand balance of water resources
As the basis and premise of land consolidation, water resources balance analysis mainly includes the analysis of supply and demand balance of total available water resources, total water demand, total available water resources and total water demand. Land consolidation has changed the planting area of land and correspondingly changed the relationship between supply and demand of water resources. Therefore, in the process of analyzing the total amount of available water resources, it is necessary to analyze the water supply demand before and after land consolidation. The analysis of water supply demand before land consolidation is to provide the basis for the establishment of irrigation system and planting structure, while the analysis of water supply demand after land consolidation is to verify the rationality of the analysis.
3.2 Analysis of seasonal water resources balance
As we all know, agriculture is an industry that depends on the weather to some extent. Most parts of China are in the monsoon belt, with obvious seasonal precipitation. Uneven precipitation of rose may lead to seasonal drought or drought and flood. Because precipitation often exists uneven monthly distribution, it leads to seasonal drought or flood. In order to solve this situation, it is necessary to strengthen the analysis of seasonal water resources balance, deeply understand the present situation of water resources in this area, promote the accurate design of irrigation facilities, and provide realistic basis for clarifying the local planting structure. For example, when the four seasons change, the available water supply is greater than the water demand, so there is no problem of seasonal supply and demand balance. If the available water supply is less than the water demand when the season changes, and the balance between supply and demand of water resources cannot be achieved, engineering measures should be taken to supplement water resources and establish a new balance relationship of water resources. In the process of analyzing seasonal water resources balance, more detailed hydrological observation or crop water demand test data are needed, and crop planting structure and water resources utilization in the project area need to be fully grasped.
4 abstract
As an important part of land consolidation planning, water resources balance analysis plays an important role in promoting the realization of land consolidation planning objectives. At the same time, the balance analysis of water resources promotes the rational utilization of water resources and the sustainable utilization of land resources. Therefore, it is necessary to strengthen the exploration of water resources balance analysis in the process of land consolidation, and combine the analysis of supply and demand balance of total water resources in specific areas and seasonal water and soil resources balance in concrete practice. It is believed that through continuous exploration and exploration, the analysis of water resources balance will promote the efficiency and quality of land consolidation and the sustainable utilization of resources more quickly.
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