according to the principle of bionomics and biology to popularize and research cultivating yellow cartfish in paddyfield(62 hm2), the result indicated that yield of rice was 540 kg/667 m2, yield of yellow cartfish was 22 kg, the gross income was 1 102 yuan, it can obtain the better benefit.
Applying the theories of bionomics,economics,environmental science and the technology of 3S,a multiple computation model for water and soil conservation value in Songnen Plain is put forward based on DEM and TM/MODIS data.
Applying the theories of bionomics,economics,environmental science and the technology of 3S,a quantitative multiple model for water and soil conservation value in Songnen Plain was brought forward based on statistic data,DEM and TM/MODIS data in this paper.
本文应用生态学、经济学和生态环境科学等学科的有关理论,以TM/M OD IS/DEM数据为基础,应用3S技术建立了松嫩平原水土保持价值的复合计算模型。
Methods By method of Crosskey classification system, we investigated intensively the routine classification, regional distributions and elementary bioecology study of blackflies coming from 15 different areas, including Heilongjiang, Xizang, Xinjiang, Hebei, Henan, Beijing, Shanxi, Anhui, Sichuan, Guangxi, Fujian and Hainan provinces (cities) in China.
In our view, considering the nature of object and scale of study, and accordingly the methods which have to be adopted in investigation,as well as the trends of their development,the ecological sciences may be grouped into three categories, bioecology, geoecology, and globoecology.
Basing on Cornus Officinalis' Characteristics in biology and bioecology and its practical value,the author forecasts its future development prospect by analysing its resource distribution and existing development state in Henan.
On the basis of occurrence and spread in China, related literatures collected both in home and abroad, combined with analysis of the biology and bioecology characteristics, the datum which influence the geographic distribution of four pests were assembled and entered in a software CLIMEX and a computerized geographic system (ArcGIS 8.1) to study on the geographic distribution in China and Jiangsu province.
The rolling development model of ecological economy combined water conservancy construction with schistosomiasis control
Existence of nonnegative solutions for degenerate ecological models
Estimated Forest Ecological Water Requirements in the Jinghe Watershed-Theory and Case Study
The ecological water requirement of forests is defined as the water resources used to maintain and improve the natural balance of forest ecosystems, which can be expressed by evapotranspiration of trees during the growing season.
Therefore, they can be taken as the minimum and the suitable ecological water requirements of the forest.
Bionomics, taxonomy, and evolution of the Mesozoic larvae of Trichoptera are discussed.
The bionomics of Zalophora are discussed and evidence presented to show that, unlike the other members of the Rhigonematida, Zalophora species are predators on the other nematode inhabitants of the diplopod gut.
The morphology, bionomics and distribution of Rhigonema are discussed and evidence presented for the first time that nematophagy is practised by at least one species in the genus.
Various aspects of the bionomics were studied, including the lengths of stages, mortality during development and the effects of copulation, feeding and salt content of water on oviposition.
Bionomics and control of Tarsonemus myceliophagus (Acarina: Tarsonemidae) in mushroom composts