As shown in figure 1, it is the material of Gu Quan Ecological Farm in Nanjing, China, which links crop planting, earthworm breeding, fish farming, chicken raising and duck raising with biogas.

(1) The mushrooms in the mushroom house in Figure 1 belong to the decomposers of ecosystem components.

(2) Predatory food chain includes producers and consumers. A classmate wrote a predatory food chain according to the picture: fruit tree → earthworm → chicken. Because earthworms are decomposers, the food chain is incorrect.

(3) The core technology of this ecological engineering is the virtuous cycle technology of materials. If vegetables are planted in the orchard at the same time, it belongs to intercropping technology. The biogas project in the picture adds desulfurization tower and other facilities on the basis of biogas digesters, further optimizing the clean and renewable new energy development technology.

(4) Compared with traditional agriculture, this ecological agriculture has obvious advantages in multi-level utilization of energy and reduction of environmental pollution (or recycling of waste, etc.). ).

(5) Suppose that Figure 2 is a schematic diagram of partial material circulation before the completion of the ecological farm, and the corresponding energy flow diagram of this figure is as follows:

.

So the answer is:

(1) resolver

(2) Incorrect

(3) virtuous cycle technology of materials, clean and renewable intercropping?

(4) Multi-level utilization of energy reduces environmental pollution (or realizes waste recycling, etc.). )

(5)