http://anchan.lib.ku.ac.th/agnet/handle/001/95 Search the Channel search http://anchan.lib.ku.ac.th/agnet/simple-search http://anchan.lib.ku.ac.th/agnet/handle/001/5344 Title: โครงการความหลากหลายทางชีวภาพของด้วงมูลสัตว์ในพื้นที่เขื่อนสิรินธร: รายงานวิจัยฉบับสมบูรณ์; Biodiversity of dung beetles (Coleoptera: Scarabaeinae) at Sirindhorn Dam's area<br/><br/>Authors: Yupa Hanboonsong<br/><br/>Abstract: Diversity of dung beetles was studied from 3 different forest sites from Sirinthorn Dam area in Unbonrachathanee province. A total of forty five pig dung baited traps (fifteen traps/site) were used to trap dung beetles from the three studied sites per time. Data were collected five times between January – September 2011. A total of 8,763 dung beetle individuals was found. Among those 7,130 was diurnal beetle and 1,633 was nocturnal beetle. A total of 68 species from 7 genera as Aphodius, Caccobius, Catharsius, Copris, Paragymnopleurus, Synapsis and Onthophagus. The genus Onthophagus was the most abundant with 56 species. The Shannon-Wiener diversity index (H’) of diurnal and nocturnal dung beetle was highest at the first forest site of savanna mixed sparse forest. Dung beetles were the most abundant in individuals and number species in early rainy season (July) and was higher than in the dry season (January and March). The dung beetles diversity and diversity index can use as an indicator for forestry management. http://anchan.lib.ku.ac.th/agnet/handle/001/5343 Title: การฟื้นฟูความอุดมสมบูรณ์และความหลากหลายทางชีวภาพของพื้นที่ลุ่มดินเค็มโดยการปลูกไม้ยืนต้นหลากชนิด: รายงานวิจัยฉบับสมบูรณ์; Improvement of soil fertility and biodiversity in the salt-affected lowland area by various species trees plantation<br/><br/>Authors: Chuleemas Boonthaiwai Iwai; Mullika Srisutham; Bubpha Topark-ngarm; Sam-ang Homchurn; Patcharee Theerajindakajorn<br/><br/>Abstract: In a study on remediation of soil fertility and biodiversity of soil biota affected lowland area planted with various tree species, a site located near Ek-kasatsoontorn reservoir area at Bann Somsanouk, Amphur Borabue, Mahasarakam Province, Northeast of Thailand was selected as the experimental area which 17 tree species were planted. The study site was divided into three zones according to its land slopes as zones I, II and III. The study on remediation of soil fertility in each study zone was done by collecting soil samples at 0-20 cm. soil depth at the ground around plant stems of Manila Tamarind (Pithecolobium dulce) and Common Ironwood ( Casuarina equisetifalia) and between. Sample soil were assessed for organic matter and essential elements (N,P,K) quantities, soil reaction, soil electroconductivity and soil cat ion exchange capacity. The second method was the study on remediation of biological soil property such as soil biodiversity and microorganism activity by measurements of soil microorganism respiration, microbial biomass carbon and nitrogen and decomposition rate of two litters from Manila Tamarind (Pithecolobium dulce) and Common Ironwood (Casuarina equisetifalia) leaf. There were found that after four years of growing tree, the amount of organic matter, total soil nitrogen and soil pH were increase in all area of soil sampling. The increasing were found high on Manila tamarind (Pithecolobium dulce) than Common Ironwood (Casuarina equisetifalia) and between in orderly. Soil EC were decreased in all area. The results showed that soil biota activity such as soil biota biodiversity, soil respiration and decomposition of organic matter after tree plantation were higher than before tree plantation. The decomposition rate of the leave of Manila Tamarind (Pithecolobium dulce) was higher than the leave of Common Ironwood (Casuarina equisetifalia) http://anchan.lib.ku.ac.th/agnet/handle/001/5150 Title: การวิเคราะห์พันธุกรรมระดับโมเลกุลที่เกี่ยวข้องกับอาการเปลือกแห้งในต้นยางพารา (Hevea brasiliensis. Muell. Arg); Molecular genetic analysis involving rubber tree (Hevea brasiliensis. Muell. Arg) bark necrosis syndrome<br/><br/>Authors: Preeya Wansomnuk; Pinich Wangsomnuk; Anunt Poltanee; Wipavadee Rittitum; Yasin Kitijuntaropas http://anchan.lib.ku.ac.th/agnet/handle/001/5119 Title: การเพิ่มผลผลิตข้าวหอมอินทรีย์และการปลดปล่อยก๊าซมีเทน ปีที่ 1: การคัดเลือกเทคโนโลยีการจัดการน้ำและปุ๋ยอินทรีย์ต่อการเพิ่มผลผลิตข้าวอินทรีย์ที่ปล่อยก๊าซมีเทนต่ำในนาเกษตรกร; Improving of organic rice production and its methane mitigation first year: Technology selection for improvong organic-rice production and mitigating methane in farmer's paddy field<br/><br/>Authors: Patcharee Saenjan; Niwat Luangchaisri; Anan Polthanee; Duangsamorn Tulaphitak