สืบค้นงานวิจัย
ESTIMATION OF RUBBER STAND AGE IN TYPHOON AND COLD WEATHER AFFLICTED AREA WITH LANDSAT TM DATA: A CASE STUDY IN HAINAN ISLAND, CHINA
Bangqian Chen - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): ESTIMATION OF RUBBER STAND AGE IN TYPHOON AND COLD WEATHER AFFLICTED AREA WITH LANDSAT TM DATA: A CASE STUDY IN HAINAN ISLAND, CHINA
ผู้แต่ง / หัวหน้าโครงการ (EN): Bangqian Chen
บทคัดย่อ (EN): Stand age in rubber (Hevea brasiliensis) plantation is an important factor for production management and ecosystem modeling. The feasibility of detecting difference in rubber stand age using Landsat Thematic Mapper (TM) data in Hainan Island, an area frequently disturbed by typhoon (or hurricane, tropical cyclone) and cold weather, was evaluated. The results indicated that most of the TM bands were negatively correlated with stand age. However, the correlation of infrared bands with stand age was dramatically weakened by disturbance of severe typhoon and cold weather, which suggested that, to study the normal state of rubber stand attributes by remote sensing, it is more appropriate to use an image acquired in dry season and far from severe natural disaster. The TM bands, normalized- and ratio-based vegetation indices that computed from red and infrared bands (3-5 and 7), and tasseled cap components were employed to develop models for estimating stand age through multivariate regression analysis techniques. Four statistically significant models with a coefficient of determination (R2) ranging from 0.74 to 0.82 were obtained. When applied to the validation data, all the regression models showed an overestimation of young stands (about less than 25 years) and more severe underestimation of old stands due to the growth law of rubber tree and disturbance of natural disasters. The incorporation of original bands with vegetation indices and tasseled cap components as independent variables could yield the highest estimated correlation index squared (I2) value of 0.58, the root mean square error (RMSE) value of 5.96 years, and less model bias than the other test models. This study demonstrated a close relationship between rubber stand age and Landsat TM data, and a promising prospect in application of TM data to investigating stand parameters in Hainan Island.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): Hainan Island
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง

Bangqian Chen. "ESTIMATION OF RUBBER STAND AGE IN TYPHOON AND COLD WEATHER AFFLICTED AREA WITH LANDSAT TM DATA: A CASE STUDY IN HAINAN ISLAND, CHINA". ไม่ระบุหน่วยงาน. ม.ป.ป.

Bangqian Chen. "ESTIMATION OF RUBBER STAND AGE IN TYPHOON AND COLD WEATHER AFFLICTED AREA WITH LANDSAT TM DATA: A CASE STUDY IN HAINAN ISLAND, CHINA". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



TARR Wordcloud:
ESTIMATION OF RUBBER STAND AGE IN TYPHOON AND COLD WEATHER AFFLICTED AREA WITH LANDSAT TM DATA: A CASE STUDY IN HAINAN ISLAND, CHINA
Bangqian Chen
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
Pythium vexans Causing Patch Canker of Rubber Trees on Hainan Island, China Has the rubber boom weakened households in the new rubber producing areas? A case study in Northeast Thailand Relevance of Productivity Enhancement in Rubber Plantations of Meghalaya-A case Study Participatory Rubber Extension in Tripura - Case Study of Manimalayar Rubbers (P) Ltd. Studies on the Compound Ecosystem Balance and Evolution of the Natural Rubber Industry in Hainan of China ANALYSIS OF PRETREATMENT METHODS OF WASTE RUBBER TREE FOR EFFECTIVE CELLULOSE DEGRADATION Soil Fertility Evolution and Correlation with Leaf Nutrient Contents in Rubber Plantation in Hainan, China The Rubber Development in Sub Optimal Area IMPACTS OF LOW FREQUENCY TAPPING ON PRODUCTIVITY AND PRODUCTION COST : A CASE STUDY OF RUBBER INDUSTRY IN VIETNAM A direct casting method for the fabrication of a custom ScotchCaST TM UCbL foot orthosis: A case study
คัดลอก URL
กระทู้ของฉัน
ผลการสืบค้นทั้งหมด โพสต์     เรียงลำดับจาก
พัฒนาระบบโดยศูนย์ความรู้เฉพาะด้านวิศวกรรมความรู้และวิศวกรรมภาษาDeveloped by Center of Excellence for Unified Knowledge and Language Engineering
สนับสนุนโดยสำนักงานพัฒนาการวิจัยการเกษตร (องค์การมหาชน)Supported by the Agricultural Research Development Agency (Public Organization)
แบบสำรวจความพึงพอใจQuestionair