Study on industrial land consolidation based on GIS

In the process of land consolidation in Chengdu Plain, Linpan protection is an important content. At present, some protection types of Linpan have been formed in Chengdu area, such as agriculture, rural tourism, special industry and settlement type and so on. Many protected modes were explored, such as the natural subsidies, in situ conservation, comprehensive development, off-site reconstruction, etc. But there are still some questions, do not pay attention to protect Linpan ecological pattern plate function transformation, the architectural style of hybrid, protection methods are not flexible, evaluation standard is not perfect, the public participation is not enough and other issues, these problems need to be continuously optimized and improved in the future.

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Erosion Transportation Processes as Influenced by Gully Land Consolidation Projects in Highly Managed Small Watersheds in the Loess Hilly–Gully Region, China

Water ◽

10.3390/w13111540 ◽

2021 ◽

Vol 13 (11) ◽

pp. 1540

Author(s):

Qianqian Ji ◽

Zhe Gao ◽

Xingyao Li ◽

Jian’en Gao ◽

Gen’guang Zhang ◽

...

Keyword(s):

Similarity Theory ◽

Design Method ◽

Simulation Method ◽

Practical Significance ◽

Land Consolidation ◽

Small Watershed ◽

Flood Peak ◽

Erosion Area ◽

The Impact ◽

Erosion Environment

The Loess Hilly–Gully region (LHGR) is the most serious soil erosion area in the world. For the small watershed with high management in this area, the scientific problem that has been paid attention to in recent years is the impact of the land consolidation project on the erosion environment in the gully region. In this study, the 3D simulation method of vegetation, eroded sediment and pollutant transport was innovated based on the principles of erosion sediment dynamics and similarity theory, and the impacts of GLCP were analyzed on the erosion environment at different scales. The verification results show that the design method and the scale conversion relationship (geometric scale: λl = 100) were reasonable and could simulate the transport process on the complex underlying surface of a small watershed. Compared with untreated watersheds, a significant change was the current flood peak lagging behind the sediment peak. There were two important critical values of GLCP impact on the erosion environment. The erosion transport in HMSW had no change when the proportion was less than 0.85%, and increased obviously when it was greater than 3.3%. The above results have important theoretical and practical significance for watershed simulation and land-use management in HMSW.

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