55 results about "Ecosystem health" patented technology

The invention relates to a simulating and monitoring device for health status of a wetland water ecological system, which is characterized by comprising a wetland environment information collection and adjustment and control device, a wetland ecological system simulating device, a wetland water dynamic environment simulating device and a water ecological health monitoring device, wherein the wetland environment information collection and adjustment and control device comprises a greenhouse, the peripheral wall of the greenhouse is provided with a greenhouse inlet, a fan and a side window, a skylight, a fluorescent lamp, a temperature sensor and an illumination sensor are arranged on a ceiling, a heating device is arranged inside the greenhouse, and a control cabinet and a computer are arranged outside the greenhouse; the wetland ecological system simulating device comprises a planting trough arranged in the greenhouse, the planting trough is connected with a drainage pipe, and an automatic water makeup system is arranged at the outer side of the planting trough; the wetland water dynamic environment simulating device comprises an automatic lifting power device and a water flow propeller; and the water ecological health monitoring device comprises an automatic lifting power device and a biological membrane culture device. The two automatic lifting power devices respectively comprise a motor arranged on the ceiling of the greenhouse; the motors are connected with a suspension cable winding shaft through a gearbox; a suspension cable is wound on the suspension cable winding shaft, and the other end of the suspension cable droops and is connected with the water flow propeller or the biological membrane culture device.

The invention provides a method for assessing urban ecosystem health by an uncertain measure composite technology, belonging to the scientific field of urban ecological planning. The method comprisesthe steps that: a plurality of index factors reflecting 6 health factors of an ecological city are selected and are subject to simplification through Pearson correlativity analysis in SPSS tool, a classification criteria matrix for the uncertain measure is then established by ranking health assessments and checking entropy weight, and health level of the system is further checked. The method is extensively suitable for reasonably, comprehensively assessing urban, regional ecosystem health condition, and on the basis of which, can offer scientific theoretical foundation for urban ecological planning, and the method is also suitable for assessing regional scale ecosystem health.

The present invention relates to a community optimization method of a low efficiency-water conservation forest. The method comprises the steps of surveying an indigenous plant community, and determining the current and historical distribution of the indigenous plant community; evaluating the plant community, and screening a plurality of introduction after-culture species facilitating improving a water conservation function; configuring two varieties or more than two varieties of trees of different ages for the landscapes of the low efficiency-water conservation forest according to the above screened introduction after-culture species to increase the degree of heterogeneity of the plant community in the horizontal space; managing the low efficiency-water conservation forest according to the main characteristics and the degeneration reasons of the community of the low efficiency-water conservation forest. The method of the present invention enables the water conservation function of an ecological system to be improved, at the same time, considers the coupling functions, such as the biodiversity protection, the soil conservation, etc., and promotes the healthy, stable and long-term development of the ecological system.