Rows of rain canopies and drainage systems spread out across the planted grounds to reduce the amount of rainwater entering the cultivated soil, eliminating the risk of soil slippage and reducing the runoff of agrochemicals and fertilizer. This lowers the rate of water pollution within the watershed while reducing the threat to crops from pests and disease.
園區中一間間架設雨棚、排水設計的花圃，便是為了減少雨水滲入栽植區域土壤，除了消除地層滑動威脅，也減少農藥、肥料的淋洗、流失，降低集水區的水質污染，還可以減緩作物罹患病蟲害的壓力。