Complex sentence: Each of these techniques also provides other benefits--soil protection and improvement, fertilization, pollination, water Conservation, season extension, etc.--and these benefits are both complementary and cumulative in overall effect on site health.
Split into simpler sentences: Each of these techniques also provides other benefits, such as soil protection and improvement, fertilization, pollination, water conservation and season extension. These benefits are both complementary and cumulative in overall effect on site health.