Arborikultur: Penanaman dan Pemeliharaan Pohon (Silvikultur) dalam Hutan Kota

Summary

This lecture guides viewers through the planning, planting, and maintenance of urban forests. It emphasizes starting with small trees for cost-effective, resilient growth, while also explaining arboriculture techniques for safely transplanting large trees. Key steps include selecting appropriate locations, preparing technical designs, managing soil and root care, and implementing proper watering, fertilization, pruning, and hormone treatments. Timing and environmental conditions, such as wind and season, are critical for successful transplantation. The video highlights practical methods, survival factors, and maintenance strategies to ensure urban forests thrive, providing a comprehensive roadmap for sustainable city forest development.

Takeaways

• 🌳 Urban forest planning begins with reviewing the spatial plan and studying ecological, social, economic, and cultural aspects.
• 🪴 Planting young trees is easier, cheaper, and more effective than relocating large, mature trees.
• 🌱 Arboriculture is the science of planting and maintaining trees, especially in urban areas, to reduce risks and ensure safety.
• 🚛 Transplanting large trees requires careful preparation of the root ball, specialized tools, vehicles, and experienced personnel.
• 🔄 The transplanting process can take months, involving root trimming, circular root ball preparation, and allowing the tree to adjust before moving.
• 🛠 Different transplanting methods include bare root, burlap-wrapped root balls, frozen root balls, and mechanical lifting, depending on tree size, soil type, and distance.
• 💧 Successful transplanting depends on factors such as soil quality, root type, tree size, season, and proper watering and fertilization.
• ✂️ Pruning up to 75% of branches can help reduce stress during transplanting and facilitate easier handling of the tree.
• ☀️ Trees should be transported under weak wind and shaded conditions to prevent branch breakage, excessive transpiration, and sunburn.
• 💊 Post-transplant care includes watering, fertilization, pruning, growth hormone application, wound care, and supporting the tree trunk as needed.
• 📅 The best time to plant or transplant trees is at the beginning of the rainy season or at the end of the dry season to maximize survival and growth.

Q & A

What is the primary focus of the 12th Urban Forest Lecture meeting?

The primary focus of the lecture is on how to plant and maintain trees in urban forests, including understanding the planning process and the techniques involved in building urban forests.

What is the first step in the city development process for creating an urban forest?

The first step is a general review of the existence of urban forests in the regional spatial plan, followed by a comprehensive study of ecological, biological, economic, social, and cultural aspects of urban communities.

Why is it easier to build an urban forest from smaller trees rather than mature ones?

It is easier to build an urban forest from small trees because they have a higher resistance to disturbances and are more adaptable to relocation, compared to large trees which require more complex handling and have a higher risk of damage during relocation.

What is arboriculture, and how does it relate to urban forest development?

Arboriculture is the science of planting, maintaining, and managing trees, specifically in non-forest environments. It is crucial in urban forest development as it helps manage individual trees, ensuring their safety and health, and includes practices like transplanting trees to avoid dangers posed by falling branches or other risks.

What technique is often used for moving large trees, and what does it involve?

The technique used for moving large trees is transplanting. This involves digging around the tree’s root system, lifting it carefully while maintaining the root ball intact, and transporting the tree to a new location. The roots are usually wrapped to prevent damage during transit.

Why is it important to prune large trees before transplanting them?

Pruning is necessary to reduce the risk of damage during transportation, and to minimize excessive transpiration and energy loss from the tree. It also helps the tree adjust more easily to its new environment.

How does the type of soil affect the success of tree transplanting?

The soil type is critical for transplanting success. Trees with fibrous roots, which are more common in certain soil types, generally have a higher success rate when transplanted. In contrast, larger trees with more complex root systems may face difficulties in tropical or lowland soils, especially when moved over long distances.

What factors influence the success of tree transplanting?

The success of tree transplanting depends on several factors including the type of roots (fibrous or taproots), the health of the tree, the timing of transplanting (preferably at the start of the rainy season), the size of the root ball, and the condition of the planting site.

What is the recommended timing for transplanting trees, and why?

It is recommended to transplant trees either at the beginning of the rainy season or at the end of the dry season. This ensures that watering is easier and the trees are less likely to experience stress due to extreme weather conditions.

What are the key components of preparing the planting hole for transplanting a tree?

The planting hole should be larger than the root ball (about 1.5 to 2 times the size), with moist, fertile soil. This helps the tree adapt and reduces stress, ensuring good root growth. The hole should not be too deep or shallow to avoid root suffocation or instability.