PV Interplanting Layout Using Grapevine Trellises for Shade Crops
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
PV power plants in karst rocky desertification areas face challenges in planting sciophytes without artificial sunshades, leading to low land yield and land utilization rates.
Innovation Solution
A method for interplanting grape and Polygonatum kingianum in a PV power plant, involving the configuration of uprights and a grapevine traction frame, along with the planting of green manure, to create a shaded environment suitable for sciophilous plants while maximizing land use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If artificial sunshades (plant and glass sheds) are built to shade sciophytes, then the shading environment is improved, but the construction cost and material inputs greatly increase
Solution Approach 1:
The PV modules themselves serve as the shading structure for sciophytes. The patent utilizes the existing PV module arrangement to create shaded spaces underneath where Polygonatum kingianum can grow, eliminating the need for separate artificial sunshade structures. The PV modules' shadow naturally provides the required shading environment, making the system self-sufficient and avoiding additional construction costs.
Solution Approach 2:
The PV modules perform dual functions: generating electricity and providing shading for sciophyte cultivation. The same structure that captures solar energy also creates the shaded microenvironment needed for light-sensitive plants, thereby serving multiple purposes simultaneously and eliminating redundant infrastructure.
2Illumination intensity
If sciophytes are planted in shaping areas formed by PV modules, then the shaded environment is utilized, but the land utilization rate and output remain low
Solution Approach 1:
The patent combines PV power generation with sciophyte cultivation in a single integrated system. By planting Polygonatum kingianum underneath the PV modules, it merges energy production and agricultural output in the same spatial footprint, transforming the shaded area from underutilized space into a productive dual-use zone.
Solution Approach 2:
The patent utilizes the vertical dimension by planting sciophytes in the understory beneath the elevated PV modules. This creates a layered structure where the upper layer generates electricity and the lower layer produces agricultural output, effectively using three-dimensional space rather than just horizontal area.
3Ease of manufacture
If single crop planting is done in PV power plant, then the planting process is simple, but the comprehensive land yield is low
Solution Approach 1:
The patent implements interplanting of heliophilous grapevines alongside sciophilous Polygonatum kingianum under the PV modules. This combines two different crop systems with different light requirements in the same spatial zone, allowing both crops to thrive in their respective microenvironments while maximizing the overall land output.
Solution Approach 2:
The patent creates different microenvironments within the same planting area: the PV module shadows provide shaded zones for sciophytes, while adjacent areas receive more light suitable for heliophilous plants. Each location is optimized for its specific crop type, allowing diverse production from the same land area.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method enhances land output and utilization rates in PV power plants by integrating heliophilous grape cultivation with sciophilous Polygonatum kingianum planting, improving soil fertility, and efficiently using space resources.
Implementation Method 1
the PV power plant includes a plurality of PV modules
Data Source
AI summary
Provided is a method for interplanting grape and Polygonatum kingianum in a photovoltaic (PV) power plant. The method includes: building a grapevine traction frame which is higher in south and lower in north in a space formed by a plurality of PV modules in the PV power plant, the grapevine traction frame includes a plurality of uprights, a plurality of traction crossbars, a plurality of supporting bars and a wire mesh; making a grape ridge below the south of each PV module and planting grape seedlings; maintaining two branches for each of the grape seedlings in the same year of grape planting, and pulling the two branches along the traction crossbar located in south; pulling branches grown out of arm bud points southwards onto the wire mesh in the next year of grape planting; sowing and ploughing a green manure, making planting beds in a shade and planting Polygonatum kingianum.