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Prospective of Indian Tropical Tasar Silkworm, Antheraea Mylitta Drury (Lepidoptera: Saturniidae) as Feasible Forest Wealth
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作者 Rangareddygari Manohar Reddy Pathapalli Muneerappa Muniswamy Reddy +4 位作者 Gangadharaiah Lokesh Reddivari Dayananda Reddy Cheluri Siva Reddy Andanur Manjula Vankadara Sivaprasad 《Journal of Life Sciences》 2011年第10期850-855,共6页
Commercially important polyphagous tropical tasar silk insect, Antheraea mylitta Drury is distributed along central India (12-31 ° N latitude, 72-96° E longitude), which on adaptation formed in to forty fo... Commercially important polyphagous tropical tasar silk insect, Antheraea mylitta Drury is distributed along central India (12-31 ° N latitude, 72-96° E longitude), which on adaptation formed in to forty four ecoraces of varied phenotypes. Its wild ecoraces like Raily, Modal, Jata, Sarihan, Laria, Bhandara and Andhra, besides domesticated Daba and Sukinda are contributing for livelihood of forest based aboriginals. However, the deforestation and extensive collection of nature grown cocoons led to declination of wild population and even have endangered few ecoraces. The government and Non Government Organizations (NGOs), although promote ecorace conservation, it could upkeep the insect wildlife only to limited extent. But the forest department with associated self help societies has advantage in conserving tasar insect as prospective forest wealth, with better knowledge and access to its habitats. The co-ordinate efforts from forest, sericulture departments to participate native aboriginals of such societies can facilitate conserving tasar-biodiversity as most feasible forest associated resource. 展开更多
关键词 Antheraea mylitta conservation ecoraces forest wealth tasar biodiversity.
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四湖中下区旱地土壤表层相对湿度的遥感反演
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作者 熊勤学 金卫斌 由阳阳 《湖北农业科学》 北大核心 2011年第6期1128-1131,共4页
通过对2010年5月31日ENVISAT ASAR IMM(Image mode medium-resolution image)数据的预处理,并运用中国环境资源卫星数据计算出三景(2010年1月2日、3月16日和5月23日)NDVI指数空间分布,结合地面物候特点,提取了湖北四湖中下区旱地空间分... 通过对2010年5月31日ENVISAT ASAR IMM(Image mode medium-resolution image)数据的预处理,并运用中国环境资源卫星数据计算出三景(2010年1月2日、3月16日和5月23日)NDVI指数空间分布,结合地面物候特点,提取了湖北四湖中下区旱地空间分布;通过对地面0~10cm土壤含水量观测数据与对应的ASAR IMM后向散射系数的统计分析,得出了两者呈极显著的正相关关系,证明运用ASAR IMM数据反映湿润地区土壤表层相对湿度是可行的;根据旱地土壤表层相对湿度与ASAR IMM后向散射系数的统计模型,反演出2010年5月31日四湖中下区旱地土壤表层相对湿度的空间分布。 展开更多
关键词 土壤表层相对湿度 ENVISA tasar IMM数据 遥感反演
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