Because lack of hypothesis of single factor in test of lab and exist high cost, hard-to-reduplicated and data "noise" in field experiment, one of the bottlenecks to limit the development of ecology is the suitable test method of ecological hypothesis' decisive experiment. This paper introduces the origin of test of ecological hypothesis, analysis function of test method of decisive experiment, demonstrates the test in lab and the theory, exercise and development of test method of field experiment of ecological hypothesis, and, discusses the operation criteria of ecological field experiment (coordinated distributed experiments, CDEs), proposed by Fraser et al (2013), and native case (CARE-China).

ecological hypothesis  /  divisive experiment  /  field experiment  /  coordinated distributed experiments (CDEs)