. . .along with 13 volunteers from the California Conservation Corps who did most of the “heavy lifting” moving rocks, preparing pathways and the 20′ circular planter in the middle of the Schoolyard Habitat.
Below, students, parents and a grandparent are busy spreading mulch and cleaning the cardboard to prepare for “sheet mulching” where:
1-the ground is first cleared of rocks and weeds;
2-the ground is sprayed with compost tea:
3-then a layer of cardboard is spread on top of the ground;
4- 8″- 12″ of mulch spread on top of the cardboard and watered in.
Sheet mulching provides a barrier to suppress existing weed seeds and help retain moisture in the soil. This allows rain water to be percolate into the soil following the “slows it, spread it and sink it” concept to keep rainwater on site and prevent runoff.
Below students clean cardboard and move mulch onto cardboard. In the back ground, wheel barrows of mulch are being dropped onto cardboard.
The workday is finished, with pathway created down to central planter, and Phase 1 planting areas covered in cardboard and mulch wait to be watered in.
Just in time for the rain.. on Wednesday, October 5 we received our first rain of the season, where 1.3″ fell onto the SYH site. The rainwater sinks into the SYH mulched site, compared to the puddling of water under the oak tree, where the soil is compacted and takes a while to sink in.