38 results about "Ecological study" patented technology

The invention discloses a quantification analysis method of fish habitat space characteristics influenced by gate dam regulation and control; the method comprises the following steps: investigating fish resource present situations in a research area, and screening a target fish; aiming at the screened target fish, and using indoor stress experiments and history data to build a quantification response relation curve of the target fish with respect to key habitat factors; gathering research area basic hydrology and landform data so as to build a water-power water environment model, and combiningthe quantification response relation curve of the target fish with respect to key habitat factor so as to build a habitat model facing fish habitats; introducing a landscape ecology theory and methodso as to evaluate the space characteristics of the habitat simulation result facing the fish habitat, and quantitatively analyzing the influences on the fish habitat space characteristics by the gatedam operations. The method can guide multi-gate dam river ecology restorations and protections, thus providing important theory and practice meanings for basin water resource planning and configurations.

The present invention discloses a skeletonema costatum PCNA gene detection method. Said method includes the following steps: (1), extracting RNA of skeletonema costatum; (2), separating and cloning partial sequence of skeletonema costatum PCNA gene, utilizing 3'RACE to make the obtained skeletonema costatum PCNA sequence implement 3' end extension so as to obtain PCNA sequence with 750-850bp; and (3), according to the obtained PCNA sequence with 750-850bp constructing standard curve and utilizing said standard curve to detect the skeletonema costatum PCNA gene to be detected. According the method of the invention, through the skeletonema costatum PCNA gene, the productivity of the floating alga can be detected and estimated, the vicissitude of the floating alga cluster can be investigated, the zoology dynamic model can be established and even some features can be predicted. Therefore, the defect that the locale zoology parameters of a single floating alga can not be detected in prior art is effectively overcome.

The invention belongs to the field of ecological studies and particularly relates to a plant leaf area print weighing in-vivo testing method. The method has no significant difference with an autoCAD (auto computer aided design) method in testing accuracy and can replace the autoCAD method to be used for plant leaf area testing. The technical scheme includes that the method includes the following steps: detecting and calculating paper density rho, coating markers on the whole back of a plant leaf to be tested, printing the whole shape of the leaf onto paper A to acquire a print graph of the leaf, cutting another empty paper B to make paper C in the shape of the print graph of the leaf, weighing the paper C to acquire mass m, and calculating to acquire area s of the leaf. Compared with conventional algorithms like a basic testing method or the autoCAD method, the plant leaf area print weighing in-vivo testing method has the advantages of simplicity in operation, low cost, no need to pick off the leaf, freeness of leaf damaging, conduciveness to sustainability studies and the like.

The invention relates to the field of ecological study, and provides a multichannel double-circulation soil carbon discharge delta13C observing system. The multichannel double-circulation soil carbon discharge delta13C observing system consists of a gas analyzing system and a circuit control system. The gas analyzing system comprises a discharging box, a box cover, a sampling pipe, an air pump, a three-way solenoid valve, a multichannel solenoid valve, a delta13C analyzer and a single chip microcomputer. The circuit control system is formed by connecting a power source, a control line, a switch and a contact according to a given circuit. With the adoption of the multichannel double-circulation soil carbon discharge delta13C observing system, automatic conversion and circular observation among a plurality of channels are realized, so as to remove interference of 'dead air' on an observing result, save observing time of each channel, and improve the efficiency and the accuracy of soil carbon discharge delta13C observation.

The invention provides an automatic remote termite monitoring system based on the internet of things. The automatic remote termite monitoring system comprises multiple termite monitoring devices, multiple automatic monitoring data collecting devices and an automatic remote monitoring subsystem; the termite monitoring devices are placed at different depths of the underground and used for storing baits to lure termites to be gathered, the automatic monitoring collecting devices are used for monitoring environmental data in shells and termite activity video data and sending an alarm signal when the fact that the environment data exceed the standard or the termite activities are abnormal is judged; the automatic remote monitoring subsystem is used for receiving the environmental data and the video data to form continuous termite monitoring history data and analyzing ecological feature information of termites by analyzing the influences of the environmental data on the termite activities according to the termite monitoring history data. According to the automatic remote termite monitoring system based on the internet of things, automatic acquiring and automatic analyzing of the related data needed by termite ecological study can be achieved, and the termite controlling effect and efficiency are significantly improved.

The invention discloses a method for measuring interflow in forest soil, and belongs to the field of forest soil ecological study. The method is characterized in that the system utilizes the soil profile and consists of an interflow flow collecting groove, a flow guide pipe and an interflow collector, wherein the flow collecting groove is embedded into a soil body in different layers of the soil profile, the interflow is collected, and the interflow is guided into the collector for completing the collection of the interflow. The method has the advantages that the structure is compact, the system is reasonable, the method is simple, the realization is easy, a scientific and reasonable small-dimension measuring system is provided for the study of the forest soil hydrology process, the moisture and nutrient balance and moving and the like, and greater popularization and application values are realized in the fields of forest soil ecology, forest hydrology, water and soil conservation and the like.